igb: Add stats output for OS2BMC feature on i350 devices

This patch adds statistics output for OS2BMC feature which is configured
by eeprom on capable devices.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index ff46c91..92e11da 100644 (file)
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -110,6 +110,7 @@
 /* Management Control */
 #define E1000_MANC_SMBUS_EN      0x00000001 /* SMBus Enabled - RO */
 #define E1000_MANC_ASF_EN        0x00000002 /* ASF Enabled - RO */
+#define E1000_MANC_EN_BMC2OS     0x10000000 /* OSBMC is Enabled or not */
 /* Enable Neighbor Discovery Filtering */
 #define E1000_MANC_RCV_TCO_EN    0x00020000 /* Receive TCO Packets Enabled */
 #define E1000_MANC_BLK_PHY_RST_ON_IDE   0x00040000 /* Block phy resets */

diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index 281324e..eec9ed7 100644 (file)
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -248,6 +248,10 @@ struct e1000_hw_stats {
        u64 scvpc;
        u64 hrmpc;
        u64 doosync;
+       u64 o2bgptc;
+       u64 o2bspc;
+       u64 b2ospc;
+       u64 b2ogprc;
 };
 
 struct e1000_phy_stats {

diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h
index 3a6f847..6171354 100644 (file)
--- a/drivers/net/igb/e1000_regs.h
+++ b/drivers/net/igb/e1000_regs.h
@@ -328,4 +328,11 @@
 
 /* DMA Coalescing registers */
 #define E1000_PCIEMISC          0x05BB8 /* PCIE misc config register */
+
+/* OS2BMC Registers */
+#define E1000_B2OSPC    0x08FE0 /* BMC2OS packets sent by BMC */
+#define E1000_B2OGPRC   0x04158 /* BMC2OS packets received by host */
+#define E1000_O2BGPTC   0x08FE4 /* OS2BMC packets received by BMC */
+#define E1000_O2BSPC    0x0415C /* OS2BMC packets transmitted by host */
+
 #endif

diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 61f7849..78d420b 100644 (file)
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -86,6 +86,10 @@ static const struct igb_stats igb_gstrings_stats[] = {
        IGB_STAT("tx_smbus", stats.mgptc),
        IGB_STAT("rx_smbus", stats.mgprc),
        IGB_STAT("dropped_smbus", stats.mgpdc),
+       IGB_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
+       IGB_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
+       IGB_STAT("os2bmc_tx_by_host", stats.o2bspc),
+       IGB_STAT("os2bmc_rx_by_host", stats.b2ogprc),
 };
 
 #define IGB_NETDEV_STAT(_net_stat) { \
@@ -603,7 +607,10 @@ static void igb_get_regs(struct net_device *netdev,
        regs_buff[548] = rd32(E1000_TDFT);
        regs_buff[549] = rd32(E1000_TDFHS);
        regs_buff[550] = rd32(E1000_TDFPC);
-
+       regs_buff[551] = adapter->stats.o2bgptc;
+       regs_buff[552] = adapter->stats.b2ospc;
+       regs_buff[553] = adapter->stats.o2bspc;
+       regs_buff[554] = adapter->stats.b2ogprc;
 }
 
 static int igb_get_eeprom_len(struct net_device *netdev)

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index eef380a..3666b96 100644 (file)
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -4560,6 +4560,15 @@ void igb_update_stats(struct igb_adapter *adapter,
        adapter->stats.mgptc += rd32(E1000_MGTPTC);
        adapter->stats.mgprc += rd32(E1000_MGTPRC);
        adapter->stats.mgpdc += rd32(E1000_MGTPDC);
+
+       /* OS2BMC Stats */
+       reg = rd32(E1000_MANC);
+       if (reg & E1000_MANC_EN_BMC2OS) {
+               adapter->stats.o2bgptc += rd32(E1000_O2BGPTC);
+               adapter->stats.o2bspc += rd32(E1000_O2BSPC);
+               adapter->stats.b2ospc += rd32(E1000_B2OSPC);
+               adapter->stats.b2ogprc += rd32(E1000_B2OGPRC);
+       }
 }
 
 static irqreturn_t igb_msix_other(int irq, void *data)