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Subject[PATCH 16/26] atl1: modernize check link function
Date
From: Jay Cliburn <jacliburn@bellsouth.net>

Update atl1_check_link() to conform with the current vendor driver version
1.2.40.2. Clean up vertical spacing, indentation, and remove dead code.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
---
drivers/net/atlx/atl1.c | 65 +++++++++++++++-------------------------------
drivers/net/atlx/atl1.h | 1 +
2 files changed, 22 insertions(+), 44 deletions(-)
diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
index db6e76c..abed547 100644
--- a/drivers/net/atlx/atl1.c
+++ b/drivers/net/atlx/atl1.c
@@ -1094,6 +1094,7 @@ static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
u32 value;
struct atl1_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
+
/* Config MAC CTRL Register */
value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN;
/* duplex */
@@ -1101,8 +1102,8 @@ static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
value |= MAC_CTRL_DUPLX;
/* speed */
value |= ((u32) ((SPEED_1000 == adapter->link_speed) ?
- MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) <<
- MAC_CTRL_SPEED_SHIFT);
+ MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) <<
+ MAC_CTRL_SPEED_SHIFT);
/* flow control */
value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
/* PAD & CRC */
@@ -1113,10 +1114,6 @@ static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
/* vlan */
if (adapter->vlgrp)
value |= MAC_CTRL_RMV_VLAN;
- /* rx checksum
- if (adapter->rx_csum)
- value |= MAC_CTRL_RX_CHKSUM_EN;
- */
/* filter mode */
value |= MAC_CTRL_BC_EN;
if (netdev->flags & IFF_PROMISC)
@@ -1131,7 +1128,7 @@ static u32 atl1_check_link(struct atl1_adapter *adapter)
{
struct atl1_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
- u32 ret_val;
+ u32 val, retval;
u16 speed, duplex, phy_data;
int reconfig = 0;

@@ -1143,6 +1140,10 @@ static u32 atl1_check_link(struct atl1_adapter *adapter)
if (netif_carrier_ok(netdev)) {
/* old link state: Up */
dev_info(&adapter->pdev->dev, "link is down\n");
+ val = ioread32(hw->hw_addr + REG_MAC_CTRL);
+ val &= ~MAC_CTRL_RX_EN;
+ iowrite32(val, hw->hw_addr + REG_MAC_CTRL);
+ ioread32(hw->hw_addr + REG_MAC_CTRL);
adapter->link_speed = SPEED_0;
netif_carrier_off(netdev);
netif_stop_queue(netdev);
@@ -1151,15 +1152,12 @@ static u32 atl1_check_link(struct atl1_adapter *adapter)
}

/* Link Up */
- ret_val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
- if (ret_val)
- return ret_val;
+ retval = atl1_get_speed_and_duplex(hw, &speed, &duplex);
+ clear_bit(0, &hw->force_ps);
+ if (retval)
+ return retval;

switch (hw->media_type) {
- case MEDIA_TYPE_1000M_FULL:
- if (speed != SPEED_1000 || duplex != FULL_DUPLEX)
- reconfig = 1;
- break;
case MEDIA_TYPE_100M_FULL:
if (speed != SPEED_100 || duplex != FULL_DUPLEX)
reconfig = 1;
@@ -1180,8 +1178,8 @@ static u32 atl1_check_link(struct atl1_adapter *adapter)

/* link result is our setting */
if (!reconfig) {
- if (adapter->link_speed != speed
- || adapter->link_duplex != duplex) {
+ if (adapter->link_speed != speed ||
+ adapter->link_duplex != duplex) {
adapter->link_speed = speed;
adapter->link_duplex = duplex;
atl1_setup_mac_ctrl(adapter);
@@ -1201,39 +1199,18 @@ static u32 atl1_check_link(struct atl1_adapter *adapter)

/* change original link status */
if (netif_carrier_ok(netdev)) {
+ val = ioread32(hw->hw_addr + REG_MAC_CTRL);
+ val &= ~MAC_CTRL_RX_EN;
adapter->link_speed = SPEED_0;
+ iowrite32(val, hw->hw_addr + REG_MAC_CTRL);
+ ioread32(hw->hw_addr + REG_MAC_CTRL);
netif_carrier_off(netdev);
netif_stop_queue(netdev);
}

- if (hw->media_type != MEDIA_TYPE_AUTO_SENSOR &&
- hw->media_type != MEDIA_TYPE_1000M_FULL) {
- switch (hw->media_type) {
- case MEDIA_TYPE_100M_FULL:
- phy_data = MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
- MII_CR_RESET;
- break;
- case MEDIA_TYPE_100M_HALF:
- phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
- break;
- case MEDIA_TYPE_10M_FULL:
- phy_data =
- MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
- break;
- default:
- /* MEDIA_TYPE_10M_HALF: */
- phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
- break;
- }
- atl1_write_phy_reg(hw, MII_BMCR, phy_data);
- return 0;
- }
-
- /* auto-neg, insert timer to re-config phy */
- if (!adapter->phy_timer_pending) {
- adapter->phy_timer_pending = true;
- mod_timer(&adapter->phy_config_timer, jiffies + 3 * HZ);
- }
+ /* autoneg, insert timer to reconfig phy */
+ if (!test_and_set_bit(0, &adapter->cfg_phy))
+ mod_timer(&adapter->phy_config_timer, jiffies + 5 * HZ);

return 0;
}
diff --git a/drivers/net/atlx/atl1.h b/drivers/net/atlx/atl1.h
index 3db9a34..1f245e0 100644
--- a/drivers/net/atlx/atl1.h
+++ b/drivers/net/atlx/atl1.h
@@ -791,6 +791,7 @@ struct atl1_adapter {
struct timer_list watchdog_timer;
struct timer_list phy_config_timer;
bool phy_timer_pending;
+ unsigned long cfg_phy;

/* all descriptor rings' memory */
struct atl1_ring_header ring_header;
--
1.5.3.3


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