X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fnet%2Fixgbe%2Fixgbe_82598.c;h=f2b7ff44215b52b3f9608d6593d22792273727f5;hb=a5e463d0b1c123873d6f0c6cdd234041c87b7c80;hp=56b12f3192f1d5b18d72b77bb03aab9807708b5f;hpb=6b1be1990d2f7d1a3b1f25bf3e6444600665764a;p=safe%2Fjmp%2Flinux-2.6

diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index 56b12f3..f2b7ff4 100644
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel 10 Gigabit PCI Express Linux driver
-  Copyright(c) 1999 - 2009 Intel Corporation.
+  Copyright(c) 1999 - 2010 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
@@ -42,9 +42,9 @@ static s32 ixgbe_get_copper_link_capabilities_82598(struct ixgbe_hw *hw,
                                              ixgbe_link_speed *speed,
                                              bool *autoneg);
 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
-                                               ixgbe_link_speed speed,
-                                               bool autoneg,
-                                               bool autoneg_wait_to_complete);
+                                         ixgbe_link_speed speed,
+                                         bool autoneg,
+                                         bool autoneg_wait_to_complete);
 static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
                                        u8 *eeprom_data);
 
@@ -357,12 +357,34 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
 	u32 fctrl_reg;
 	u32 rmcs_reg;
 	u32 reg;
+	u32 link_speed = 0;
+	bool link_up;
 
 #ifdef CONFIG_DCB
 	if (hw->fc.requested_mode == ixgbe_fc_pfc)
 		goto out;
 
 #endif /* CONFIG_DCB */
+	/*
+	 * On 82598 having Rx FC on causes resets while doing 1G
+	 * so if it's on turn it off once we know link_speed. For
+	 * more details see 82598 Specification update.
+	 */
+	hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
+	if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
+		switch (hw->fc.requested_mode) {
+		case ixgbe_fc_full:
+			hw->fc.requested_mode = ixgbe_fc_tx_pause;
+			break;
+		case ixgbe_fc_rx_pause:
+			hw->fc.requested_mode = ixgbe_fc_none;
+			break;
+		default:
+			/* no change */
+			break;
+		}
+	}
+
 	/* Negotiate the fc mode to use */
 	ret_val = ixgbe_fc_autoneg(hw);
 	if (ret_val)
@@ -425,7 +447,7 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
 #endif /* CONFIG_DCB */
 	default:
 		hw_dbg(hw, "Flow control param set incorrectly\n");
-		ret_val = -IXGBE_ERR_CONFIG;
+		ret_val = IXGBE_ERR_CONFIG;
 		goto out;
 		break;
 	}
@@ -510,6 +532,40 @@ static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
 }
 
 /**
+ *  ixgbe_validate_link_ready - Function looks for phy link
+ *  @hw: pointer to hardware structure
+ *
+ *  Function indicates success when phy link is available. If phy is not ready
+ *  within 5 seconds of MAC indicating link, the function returns error.
+ **/
+static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
+{
+	u32 timeout;
+	u16 an_reg;
+
+	if (hw->device_id != IXGBE_DEV_ID_82598AT2)
+		return 0;
+
+	for (timeout = 0;
+	     timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
+		hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
+
+		if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
+		    (an_reg & MDIO_STAT1_LSTATUS))
+			break;
+
+		msleep(100);
+	}
+
+	if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
+		hw_dbg(hw, "Link was indicated but link is down\n");
+		return IXGBE_ERR_LINK_SETUP;
+	}
+
+	return 0;
+}
+
+/**
  *  ixgbe_check_mac_link_82598 - Get link/speed status
  *  @hw: pointer to hardware structure
  *  @speed: pointer to link speed
@@ -589,6 +645,10 @@ static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
 	else
 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
 
+	if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && (*link_up == true) &&
+	    (ixgbe_validate_link_ready(hw) != 0))
+		*link_up = false;
+
 	/* if link is down, zero out the current_mode */
 	if (*link_up == false) {
 		hw->fc.current_mode = ixgbe_fc_none;
@@ -1161,7 +1221,7 @@ static struct ixgbe_mac_operations mac_ops_82598 = {
 
 static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
 	.init_params		= &ixgbe_init_eeprom_params_generic,
-	.read			= &ixgbe_read_eeprom_generic,
+	.read			= &ixgbe_read_eerd_generic,
 	.validate_checksum	= &ixgbe_validate_eeprom_checksum_generic,
 	.update_checksum	= &ixgbe_update_eeprom_checksum_generic,
 };