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Date: Wed, 16 Jun 2010 16:25:55 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, gospo@...hat.com, bphilips@...ell.com,
Bruce Allan <bruce.w.allan@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next-2.6 PATCH 1/8] e1000e: cleanup ethtool loopback setup code
From: Bruce Allan <bruce.w.allan@...el.com>
Refactor the loopback setup code to first handle the only 10/100 PHY
supported by the driver if applicable and then handle the 1Gig PHYs in a
switch statement for PHY-specific setups.
Signed-off-by: Bruce Allan <bruce.w.allan@...el.com>
Tested-by: Emil Tantilov <emil.s.tantilov@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/e1000e/ethtool.c | 74 ++++++++++++++++++++++++------------------
1 files changed, 42 insertions(+), 32 deletions(-)
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c
index 2c52121..86c6a26 100644
--- a/drivers/net/e1000e/ethtool.c
+++ b/drivers/net/e1000e/ethtool.c
@@ -1263,33 +1263,36 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
hw->mac.autoneg = 0;
- /* Workaround: K1 must be disabled for stable 1Gbps operation */
- if (hw->mac.type == e1000_pchlan)
- e1000_configure_k1_ich8lan(hw, false);
-
- if (hw->phy.type == e1000_phy_m88) {
- /* Auto-MDI/MDIX Off */
- e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
- /* reset to update Auto-MDI/MDIX */
- e1e_wphy(hw, PHY_CONTROL, 0x9140);
- /* autoneg off */
- e1e_wphy(hw, PHY_CONTROL, 0x8140);
- } else if (hw->phy.type == e1000_phy_gg82563)
- e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
-
- ctrl_reg = er32(CTRL);
-
- switch (hw->phy.type) {
- case e1000_phy_ife:
+ if (hw->phy.type == e1000_phy_ife) {
/* force 100, set loopback */
e1e_wphy(hw, PHY_CONTROL, 0x6100);
/* Now set up the MAC to the same speed/duplex as the PHY. */
+ ctrl_reg = er32(CTRL);
ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
E1000_CTRL_SPD_100 |/* Force Speed to 100 */
E1000_CTRL_FD); /* Force Duplex to FULL */
+
+ ew32(CTRL, ctrl_reg);
+ udelay(500);
+
+ return 0;
+ }
+
+ /* Specific PHY configuration for loopback */
+ switch (hw->phy.type) {
+ case e1000_phy_m88:
+ /* Auto-MDI/MDIX Off */
+ e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
+ /* reset to update Auto-MDI/MDIX */
+ e1e_wphy(hw, PHY_CONTROL, 0x9140);
+ /* autoneg off */
+ e1e_wphy(hw, PHY_CONTROL, 0x8140);
+ break;
+ case e1000_phy_gg82563:
+ e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
break;
case e1000_phy_bm:
/* Set Default MAC Interface speed to 1GB */
@@ -1312,23 +1315,30 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
/* Set Early Link Enable */
e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
- /* fall through */
+ break;
+ case e1000_phy_82577:
+ case e1000_phy_82578:
+ /* Workaround: K1 must be disabled for stable 1Gbps operation */
+ e1000_configure_k1_ich8lan(hw, false);
+ break;
default:
- /* force 1000, set loopback */
- e1e_wphy(hw, PHY_CONTROL, 0x4140);
- mdelay(250);
+ break;
+ }
- /* Now set up the MAC to the same speed/duplex as the PHY. */
- ctrl_reg = er32(CTRL);
- ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
- ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
- E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
- E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
- E1000_CTRL_FD); /* Force Duplex to FULL */
+ /* force 1000, set loopback */
+ e1e_wphy(hw, PHY_CONTROL, 0x4140);
+ mdelay(250);
- if (adapter->flags & FLAG_IS_ICH)
- ctrl_reg |= E1000_CTRL_SLU; /* Set Link Up */
- }
+ /* Now set up the MAC to the same speed/duplex as the PHY. */
+ ctrl_reg = er32(CTRL);
+ ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
+ ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
+ E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
+ E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
+ E1000_CTRL_FD); /* Force Duplex to FULL */
+
+ if (adapter->flags & FLAG_IS_ICH)
+ ctrl_reg |= E1000_CTRL_SLU; /* Set Link Up */
if (hw->phy.media_type == e1000_media_type_copper &&
hw->phy.type == e1000_phy_m88) {
--
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