sky2: fix pause negotiation
The sky2 driver combines auto speed negotiation with automatic negotiation
of pause parameters; but the ethtool interface expects them to be
split. This patch allows autonegotiation to be used for speed, but
manually disable flow control.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 4944fcc..6788a91 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -321,7 +321,7 @@
struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg;
- if (sky2->autoneg == AUTONEG_ENABLE &&
+ if ( (sky2->flags & SKY2_FLAG_AUTO_SPEED) &&
!(hw->flags & SKY2_HW_NEWER_PHY)) {
u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
@@ -363,7 +363,7 @@
ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO);
/* downshift on PHY 88E1112 and 88E1149 is changed */
- if (sky2->autoneg == AUTONEG_ENABLE
+ if ( (sky2->flags & SKY2_FLAG_AUTO_SPEED)
&& (hw->flags & SKY2_HW_NEWER_PHY)) {
/* set downshift counter to 3x and enable downshift */
ctrl &= ~PHY_M_PC_DSC_MSK;
@@ -408,7 +408,7 @@
adv = PHY_AN_CSMA;
reg = 0;
- if (sky2->autoneg == AUTONEG_ENABLE) {
+ if (sky2->flags & SKY2_FLAG_AUTO_SPEED) {
if (sky2_is_copper(hw)) {
if (sky2->advertising & ADVERTISED_1000baseT_Full)
ct1000 |= PHY_M_1000C_AFD;
@@ -423,14 +423,11 @@
if (sky2->advertising & ADVERTISED_10baseT_Half)
adv |= PHY_M_AN_10_HD;
- adv |= copper_fc_adv[sky2->flow_mode];
} else { /* special defines for FIBER (88E1040S only) */
if (sky2->advertising & ADVERTISED_1000baseT_Full)
adv |= PHY_M_AN_1000X_AFD;
if (sky2->advertising & ADVERTISED_1000baseT_Half)
adv |= PHY_M_AN_1000X_AHD;
-
- adv |= fiber_fc_adv[sky2->flow_mode];
}
/* Restart Auto-negotiation */
@@ -439,8 +436,8 @@
/* forced speed/duplex settings */
ct1000 = PHY_M_1000C_MSE;
- /* Disable auto update for duplex flow control and speed */
- reg |= GM_GPCR_AU_ALL_DIS;
+ /* Disable auto update for duplex flow control and duplex */
+ reg |= GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_SPD_DIS;
switch (sky2->speed) {
case SPEED_1000:
@@ -458,8 +455,15 @@
ctrl |= PHY_CT_DUP_MD;
} else if (sky2->speed < SPEED_1000)
sky2->flow_mode = FC_NONE;
+ }
-
+ if (sky2->flags & SKY2_FLAG_AUTO_PAUSE) {
+ if (sky2_is_copper(hw))
+ adv |= copper_fc_adv[sky2->flow_mode];
+ else
+ adv |= fiber_fc_adv[sky2->flow_mode];
+ } else {
+ reg |= GM_GPCR_AU_FCT_DIS;
reg |= gm_fc_disable[sky2->flow_mode];
/* Forward pause packets to GMAC? */
@@ -594,7 +598,8 @@
/* no effect on Yukon-XL */
gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
- if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
+ if ( !(sky2->flags & SKY2_FLAG_AUTO_SPEED)
+ || sky2->speed == SPEED_100) {
/* turn on 100 Mbps LED (LED_LINK100) */
ledover |= PHY_M_LED_MO_100(MO_LED_ON);
}
@@ -605,7 +610,7 @@
}
/* Enable phy interrupt on auto-negotiation complete (or link up) */
- if (sky2->autoneg == AUTONEG_ENABLE)
+ if (sky2->flags & SKY2_FLAG_AUTO_SPEED)
gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
else
gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
@@ -661,7 +666,9 @@
/* setup General Purpose Control Register */
gma_write16(hw, port, GM_GP_CTRL,
- GM_GPCR_FL_PASS | GM_GPCR_SPEED_100 | GM_GPCR_AU_ALL_DIS);
+ GM_GPCR_FL_PASS | GM_GPCR_SPEED_100 |
+ GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_FCT_DIS |
+ GM_GPCR_AU_SPD_DIS);
if (hw->chip_id != CHIP_ID_YUKON_EC) {
if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
@@ -1117,7 +1124,8 @@
sky2_write32(sky2->hw,
Q_ADDR(rxqaddr[sky2->port], Q_CSR),
- sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
+ (sky2->flags & SKY2_FLAG_RX_CHECKSUM)
+ ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
}
/*
@@ -2087,7 +2095,7 @@
printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n",
sky2->netdev->name, istatus, phystat);
- if (sky2->autoneg == AUTONEG_ENABLE && (istatus & PHY_M_IS_AN_COMPL)) {
+ if (istatus & PHY_M_IS_AN_COMPL) {
if (sky2_autoneg_done(sky2, phystat) == 0)
sky2_link_up(sky2);
goto out;
@@ -2453,7 +2461,7 @@
/* This chip reports checksum status differently */
if (hw->flags & SKY2_HW_NEW_LE) {
- if (sky2->rx_csum &&
+ if ((sky2->flags & SKY2_FLAG_RX_CHECKSUM) &&
(le->css & (CSS_ISIPV4 | CSS_ISIPV6)) &&
(le->css & CSS_TCPUDPCSOK))
skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -2480,7 +2488,7 @@
/* fall through */
#endif
case OP_RXCHKS:
- if (!sky2->rx_csum)
+ if (!(sky2->flags & SKY2_FLAG_RX_CHECKSUM))
break;
/* If this happens then driver assuming wrong format */
@@ -2505,7 +2513,8 @@
printk(KERN_NOTICE PFX "%s: hardware receive "
"checksum problem (status = %#x)\n",
dev->name, status);
- sky2->rx_csum = 0;
+ sky2->flags &= ~SKY2_FLAG_RX_CHECKSUM;
+
sky2_write32(sky2->hw,
Q_ADDR(rxqaddr[port], Q_CSR),
BMU_DIS_RX_CHKSUM);
@@ -3206,7 +3215,8 @@
}
ecmd->advertising = sky2->advertising;
- ecmd->autoneg = sky2->autoneg;
+ ecmd->autoneg = (sky2->flags & SKY2_FLAG_AUTO_SPEED)
+ ? AUTONEG_ENABLE : AUTONEG_DISABLE;
ecmd->duplex = sky2->duplex;
return 0;
}
@@ -3218,6 +3228,7 @@
u32 supported = sky2_supported_modes(hw);
if (ecmd->autoneg == AUTONEG_ENABLE) {
+ sky2->flags |= SKY2_FLAG_AUTO_SPEED;
ecmd->advertising = supported;
sky2->duplex = -1;
sky2->speed = -1;
@@ -3259,9 +3270,9 @@
sky2->speed = ecmd->speed;
sky2->duplex = ecmd->duplex;
+ sky2->flags &= ~SKY2_FLAG_AUTO_SPEED;
}
- sky2->autoneg = ecmd->autoneg;
sky2->advertising = ecmd->advertising;
if (netif_running(dev)) {
@@ -3331,14 +3342,17 @@
{
struct sky2_port *sky2 = netdev_priv(dev);
- return sky2->rx_csum;
+ return !!(sky2->flags & SKY2_FLAG_RX_CHECKSUM);
}
static int sky2_set_rx_csum(struct net_device *dev, u32 data)
{
struct sky2_port *sky2 = netdev_priv(dev);
- sky2->rx_csum = data;
+ if (data)
+ sky2->flags |= SKY2_FLAG_RX_CHECKSUM;
+ else
+ sky2->flags &= ~SKY2_FLAG_RX_CHECKSUM;
sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
@@ -3356,7 +3370,7 @@
{
struct sky2_port *sky2 = netdev_priv(dev);
- if (!netif_running(dev) || sky2->autoneg != AUTONEG_ENABLE)
+ if (!netif_running(dev) || !(sky2->flags & SKY2_FLAG_AUTO_SPEED))
return -EINVAL;
sky2_phy_reinit(sky2);
@@ -3596,7 +3610,8 @@
ecmd->tx_pause = ecmd->rx_pause = 1;
}
- ecmd->autoneg = sky2->autoneg;
+ ecmd->autoneg = (sky2->flags & SKY2_FLAG_AUTO_PAUSE)
+ ? AUTONEG_ENABLE : AUTONEG_DISABLE;
}
static int sky2_set_pauseparam(struct net_device *dev,
@@ -3604,7 +3619,11 @@
{
struct sky2_port *sky2 = netdev_priv(dev);
- sky2->autoneg = ecmd->autoneg;
+ if (ecmd->autoneg == AUTONEG_ENABLE)
+ sky2->flags |= SKY2_FLAG_AUTO_PAUSE;
+ else
+ sky2->flags &= ~SKY2_FLAG_AUTO_PAUSE;
+
sky2->flow_mode = sky2_flow(ecmd->rx_pause, ecmd->tx_pause);
if (netif_running(dev))
@@ -4294,13 +4313,15 @@
sky2->msg_enable = netif_msg_init(debug, default_msg);
/* Auto speed and flow control */
- sky2->autoneg = AUTONEG_ENABLE;
+ sky2->flags = SKY2_FLAG_AUTO_SPEED | SKY2_FLAG_AUTO_PAUSE;
+ if (hw->chip_id != CHIP_ID_YUKON_XL)
+ sky2->flags |= SKY2_FLAG_RX_CHECKSUM;
+
sky2->flow_mode = FC_BOTH;
sky2->duplex = -1;
sky2->speed = -1;
sky2->advertising = sky2_supported_modes(hw);
- sky2->rx_csum = (hw->chip_id != CHIP_ID_YUKON_XL);
sky2->wol = wol;
spin_lock_init(&sky2->phy_lock);