Merge branch 'linus' into cont_syslog

[safe/jmp/linux-2.6] / drivers / net / ixgbe / ixgbe_82598.c

diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index e2d5343..9c02d60 100644 (file)
--- 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)
@@ -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,
 };
@@ -1176,6 +1236,7 @@ static struct ixgbe_phy_operations phy_ops_82598 = {
        .setup_link             = &ixgbe_setup_phy_link_generic,
        .setup_link_speed       = &ixgbe_setup_phy_link_speed_generic,
        .read_i2c_eeprom        = &ixgbe_read_i2c_eeprom_82598,
+       .check_overtemp   = &ixgbe_tn_check_overtemp,
 };
 
 struct ixgbe_info ixgbe_82598_info = {