ixgbe: clear correct counters for flow control on 82599

The 82599 was not correctly having some of it's counters cleared for flow
control.  This change corrects that.

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

diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index 94a5621..85cc301 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -136,17 +136,29 @@ s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
        IXGBE_READ_REG(hw, IXGBE_MRFC);
        IXGBE_READ_REG(hw, IXGBE_RLEC);
        IXGBE_READ_REG(hw, IXGBE_LXONTXC);
-       IXGBE_READ_REG(hw, IXGBE_LXONRXC);
        IXGBE_READ_REG(hw, IXGBE_LXOFFTXC);
-       IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
+       if (hw->mac.type >= ixgbe_mac_82599EB) {
+               IXGBE_READ_REG(hw, IXGBE_LXONRXCNT);
+               IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT);
+       } else {
+               IXGBE_READ_REG(hw, IXGBE_LXONRXC);
+               IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
+       }
 
        for (i = 0; i < 8; i++) {
                IXGBE_READ_REG(hw, IXGBE_PXONTXC(i));
-               IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
                IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
-               IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
+               if (hw->mac.type >= ixgbe_mac_82599EB) {
+                       IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i));
+                       IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i));
+               } else {
+                       IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
+                       IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
+               }
        }
-
+       if (hw->mac.type >= ixgbe_mac_82599EB)
+               for (i = 0; i < 8; i++)
+                       IXGBE_READ_REG(hw, IXGBE_PXON2OFFCNT(i));
        IXGBE_READ_REG(hw, IXGBE_PRC64);
        IXGBE_READ_REG(hw, IXGBE_PRC127);
        IXGBE_READ_REG(hw, IXGBE_PRC255);
@@ -184,9 +196,17 @@ s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
        IXGBE_READ_REG(hw, IXGBE_BPTC);
        for (i = 0; i < 16; i++) {
                IXGBE_READ_REG(hw, IXGBE_QPRC(i));
-               IXGBE_READ_REG(hw, IXGBE_QBRC(i));
                IXGBE_READ_REG(hw, IXGBE_QPTC(i));
-               IXGBE_READ_REG(hw, IXGBE_QBTC(i));
+               if (hw->mac.type >= ixgbe_mac_82599EB) {
+                       IXGBE_READ_REG(hw, IXGBE_QBRC_L(i));
+                       IXGBE_READ_REG(hw, IXGBE_QBRC_H(i));
+                       IXGBE_READ_REG(hw, IXGBE_QBTC_L(i));
+                       IXGBE_READ_REG(hw, IXGBE_QBTC_H(i));
+                       IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
+               } else {
+                       IXGBE_READ_REG(hw, IXGBE_QBRC(i));
+                       IXGBE_READ_REG(hw, IXGBE_QBTC(i));
+               }
        }
 
        return 0;

diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h
index 013751d..13a45c7 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_type.h
+++ b/drivers/net/ixgbe/ixgbe_type.h
@@ -659,6 +659,8 @@
 #define IXGBE_QPTC(_i) (0x06030 + ((_i) * 0x40)) /* 16 of these */
 #define IXGBE_QBRC(_i) (0x01034 + ((_i) * 0x40)) /* 16 of these */
 #define IXGBE_QBTC(_i) (0x06034 + ((_i) * 0x40)) /* 16 of these */
+#define IXGBE_QBRC_L(_i) (0x01034 + ((_i) * 0x40)) /* 16 of these */
+#define IXGBE_QBRC_H(_i) (0x01038 + ((_i) * 0x40)) /* 16 of these */
 #define IXGBE_QPRDC(_i) (0x01430 + ((_i) * 0x40)) /* 16 of these */
 #define IXGBE_QBTC_L(_i) (0x08700 + ((_i) * 0x8)) /* 16 of these */
 #define IXGBE_QBTC_H(_i) (0x08704 + ((_i) * 0x8)) /* 16 of these */