From: Emil Tantilov <emil.s.tantilov@intel.com>
Date: Sat, 26 Feb 2011 06:40:05 +0000 (+0000)
Subject: ixgbe: clear correct counters for flow control on 82599
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=667c75651025049b39a2b5b83d8fc09a7967cce3;p=linux-beck.git

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 94a56217027c..85cc30143738 100644
--- 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 013751db5fc0..13a45c7c89d0 100644
--- 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 */