The patch titled
forcedeth config: flow control
has been removed from the -mm tree. Its filename is
forcedeth-config-flow-control.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: forcedeth config: flow control
From: Ayaz Abdulla <aabdulla@xxxxxxxxxx>
This patch allows for configurable flow control through ethtool support.
Signed-off-by: Ayaz Abdulla <aabdulla@xxxxxxxxxx>
Cc: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>
Cc: Jeff Garzik <jeff@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/net/forcedeth.c | 235 ++++++++++++++++++++++++++++----------
1 file changed, 176 insertions(+), 59 deletions(-)
diff -puN drivers/net/forcedeth.c~forcedeth-config-flow-control drivers/net/forcedeth.c
--- devel/drivers/net/forcedeth.c~forcedeth-config-flow-control 2006-06-09 15:17:15.000000000 -0700
+++ devel-akpm/drivers/net/forcedeth.c 2006-06-09 15:17:15.000000000 -0700
@@ -519,6 +519,9 @@ typedef union _ring_type {
#define NV_PAUSEFRAME_TX_CAPABLE 0x0002
#define NV_PAUSEFRAME_RX_ENABLE 0x0004
#define NV_PAUSEFRAME_TX_ENABLE 0x0008
+#define NV_PAUSEFRAME_RX_REQ 0x0010
+#define NV_PAUSEFRAME_TX_REQ 0x0020
+#define NV_PAUSEFRAME_AUTONEG 0x0040
/* MSI/MSI-X defines */
#define NV_MSI_X_MAX_VECTORS 8
@@ -1868,16 +1871,16 @@ static void nv_set_multicast(struct net_
u8 __iomem *base = get_hwbase(dev);
u32 addr[2];
u32 mask[2];
- u32 pff;
+ u32 pff = readl(base + NvRegPacketFilterFlags) & NVREG_PFF_PAUSE_RX;
memset(addr, 0, sizeof(addr));
memset(mask, 0, sizeof(mask));
if (dev->flags & IFF_PROMISC) {
printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
- pff = NVREG_PFF_PROMISC;
+ pff |= NVREG_PFF_PROMISC;
} else {
- pff = NVREG_PFF_MYADDR;
+ pff |= NVREG_PFF_MYADDR;
if (dev->flags & IFF_ALLMULTI || dev->mc_list) {
u32 alwaysOff[2];
@@ -1922,6 +1925,35 @@ static void nv_set_multicast(struct net_
spin_unlock_irq(&np->lock);
}
+void nv_update_pause(struct net_device *dev, u32 pause_flags)
+{
+ struct fe_priv *np = netdev_priv(dev);
+ u8 __iomem *base = get_hwbase(dev);
+
+ np->pause_flags &= ~(NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE);
+
+ if (np->pause_flags & NV_PAUSEFRAME_RX_CAPABLE) {
+ u32 pff = readl(base + NvRegPacketFilterFlags) & ~NVREG_PFF_PAUSE_RX;
+ if (pause_flags & NV_PAUSEFRAME_RX_ENABLE) {
+ writel(pff|NVREG_PFF_PAUSE_RX, base + NvRegPacketFilterFlags);
+ np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+ } else {
+ writel(pff, base + NvRegPacketFilterFlags);
+ }
+ }
+ if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) {
+ u32 regmisc = readl(base + NvRegMisc1) & ~NVREG_MISC1_PAUSE_TX;
+ if (pause_flags & NV_PAUSEFRAME_TX_ENABLE) {
+ writel(NVREG_TX_PAUSEFRAME_ENABLE, base + NvRegTxPauseFrame);
+ writel(regmisc|NVREG_MISC1_PAUSE_TX, base + NvRegMisc1);
+ np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+ } else {
+ writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame);
+ writel(regmisc, base + NvRegMisc1);
+ }
+ }
+}
+
/**
* nv_update_linkspeed: Setup the MAC according to the link partner
* @dev: Network device to be configured
@@ -1944,7 +1976,7 @@ static int nv_update_linkspeed(struct ne
int newdup = np->duplex;
int mii_status;
int retval = 0;
- u32 control_1000, status_1000, phyreg;
+ u32 control_1000, status_1000, phyreg, pause_flags;
/* BMSR_LSTATUS is latched, read it twice:
* we want the current value.
@@ -1990,6 +2022,11 @@ static int nv_update_linkspeed(struct ne
goto set_speed;
}
+ adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
+ lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ);
+ dprintk(KERN_DEBUG "%s: nv_update_linkspeed: PHY advertises 0x%04x, lpa 0x%04x.\n",
+ dev->name, adv, lpa);
+
retval = 1;
if (np->gigabit == PHY_GIGABIT) {
control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
@@ -2005,11 +2042,6 @@ static int nv_update_linkspeed(struct ne
}
}
- adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
- lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ);
- dprintk(KERN_DEBUG "%s: nv_update_linkspeed: PHY advertises 0x%04x, lpa 0x%04x.\n",
- dev->name, adv, lpa);
-
/* FIXME: handle parallel detection properly */
adv_lpa = lpa & adv;
if (adv_lpa & LPA_100FULL) {
@@ -2068,55 +2100,45 @@ set_speed:
writel(np->linkspeed, base + NvRegLinkSpeed);
pci_push(base);
- /* setup pause frame based on advertisement and link partner */
- np->pause_flags &= ~(NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE);
-
+ pause_flags = 0;
+ /* setup pause frame */
if (np->duplex != 0) {
- adv_pause = adv & (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM);
- lpa_pause = lpa & (LPA_PAUSE_CAP| LPA_PAUSE_ASYM);
-
- switch (adv_pause) {
- case (ADVERTISE_PAUSE_CAP):
- if (lpa_pause & LPA_PAUSE_CAP) {
- np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE;
- }
- break;
- case (ADVERTISE_PAUSE_ASYM):
- if (lpa_pause == (LPA_PAUSE_CAP| LPA_PAUSE_ASYM))
- {
- np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
- }
- break;
- case (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM):
- if (lpa_pause & LPA_PAUSE_CAP)
- {
- np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE;
- }
- if (lpa_pause == LPA_PAUSE_ASYM)
- {
- np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+ if (np->autoneg && np->pause_flags & NV_PAUSEFRAME_AUTONEG) {
+ adv_pause = adv & (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM);
+ lpa_pause = lpa & (LPA_PAUSE_CAP| LPA_PAUSE_ASYM);
+
+ switch (adv_pause) {
+ case (ADVERTISE_PAUSE_CAP):
+ if (lpa_pause & LPA_PAUSE_CAP) {
+ pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+ if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
+ pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+ }
+ break;
+ case (ADVERTISE_PAUSE_ASYM):
+ if (lpa_pause == (LPA_PAUSE_CAP| LPA_PAUSE_ASYM))
+ {
+ pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+ }
+ break;
+ case (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM):
+ if (lpa_pause & LPA_PAUSE_CAP)
+ {
+ pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+ if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
+ pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+ }
+ if (lpa_pause == LPA_PAUSE_ASYM)
+ {
+ pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+ }
+ break;
}
- break;
- }
- }
-
- if (np->pause_flags & NV_PAUSEFRAME_RX_CAPABLE) {
- u32 pff = readl(base + NvRegPacketFilterFlags) & ~NVREG_PFF_PAUSE_RX;
- if (np->pause_flags & NV_PAUSEFRAME_RX_ENABLE)
- writel(pff|NVREG_PFF_PAUSE_RX, base + NvRegPacketFilterFlags);
- else
- writel(pff, base + NvRegPacketFilterFlags);
- }
- if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) {
- u32 regmisc = readl(base + NvRegMisc1) & ~NVREG_MISC1_PAUSE_TX;
- if (np->pause_flags & NV_PAUSEFRAME_TX_ENABLE) {
- writel(NVREG_TX_PAUSEFRAME_ENABLE, base + NvRegTxPauseFrame);
- writel(regmisc|NVREG_MISC1_PAUSE_TX, base + NvRegMisc1);
} else {
- writel(NVREG_TX_PAUSEFRAME_DISABLE, base + NvRegTxPauseFrame);
- writel(regmisc, base + NvRegMisc1);
+ pause_flags = np->pause_flags;
}
}
+ nv_update_pause(dev, pause_flags);
return retval;
}
@@ -2597,11 +2619,15 @@ static int nv_set_settings(struct net_de
if (ecmd->advertising & ADVERTISED_10baseT_Half)
adv |= ADVERTISE_10HALF;
if (ecmd->advertising & ADVERTISED_10baseT_Full)
- adv |= ADVERTISE_10FULL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ adv |= ADVERTISE_10FULL;
if (ecmd->advertising & ADVERTISED_100baseT_Half)
adv |= ADVERTISE_100HALF;
if (ecmd->advertising & ADVERTISED_100baseT_Full)
- adv |= ADVERTISE_100FULL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ adv |= ADVERTISE_100FULL;
+ if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */
+ adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
+ adv |= ADVERTISE_PAUSE_ASYM;
mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
if (np->gigabit == PHY_GIGABIT) {
@@ -2626,11 +2652,20 @@ static int nv_set_settings(struct net_de
if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_HALF)
adv |= ADVERTISE_10HALF;
if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_FULL)
- adv |= ADVERTISE_10FULL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ adv |= ADVERTISE_10FULL;
if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_HALF)
adv |= ADVERTISE_100HALF;
if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_FULL)
- adv |= ADVERTISE_100FULL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ adv |= ADVERTISE_100FULL;
+ np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
+ if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisments but disable tx pause */
+ adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+ }
+ if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) {
+ adv |= ADVERTISE_PAUSE_ASYM;
+ np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+ }
mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
np->fixed_mode = adv;
@@ -2858,6 +2893,86 @@ exit:
return -ENOMEM;
}
+static void nv_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
+{
+ struct fe_priv *np = netdev_priv(dev);
+
+ pause->autoneg = (np->pause_flags & NV_PAUSEFRAME_AUTONEG) != 0;
+ pause->rx_pause = (np->pause_flags & NV_PAUSEFRAME_RX_ENABLE) != 0;
+ pause->tx_pause = (np->pause_flags & NV_PAUSEFRAME_TX_ENABLE) != 0;
+}
+
+static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
+{
+ struct fe_priv *np = netdev_priv(dev);
+ int adv, bmcr;
+
+ if ((!np->autoneg && np->duplex == 0) ||
+ (np->autoneg && !pause->autoneg && np->duplex == 0)) {
+ printk(KERN_INFO "%s: can not set pause settings when forced link is in half duplex.\n",
+ dev->name);
+ return -EINVAL;
+ }
+ if (pause->tx_pause && !(np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)) {
+ printk(KERN_INFO "%s: hardware does not support tx pause frames.\n", dev->name);
+ return -EINVAL;
+ }
+
+ netif_carrier_off(dev);
+ if (netif_running(dev)) {
+ nv_disable_irq(dev);
+ spin_lock_bh(&dev->xmit_lock);
+ spin_lock(&np->lock);
+ /* stop engines */
+ nv_stop_rx(dev);
+ nv_stop_tx(dev);
+ spin_unlock(&np->lock);
+ spin_unlock_bh(&dev->xmit_lock);
+ }
+
+ np->pause_flags &= ~(NV_PAUSEFRAME_RX_REQ|NV_PAUSEFRAME_TX_REQ);
+ if (pause->rx_pause)
+ np->pause_flags |= NV_PAUSEFRAME_RX_REQ;
+ if (pause->tx_pause)
+ np->pause_flags |= NV_PAUSEFRAME_TX_REQ;
+
+ if (np->autoneg && pause->autoneg) {
+ np->pause_flags |= NV_PAUSEFRAME_AUTONEG;
+
+ adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
+ adv &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+ if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */
+ adv |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
+ adv |= ADVERTISE_PAUSE_ASYM;
+ mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
+
+ if (netif_running(dev))
+ printk(KERN_INFO "%s: link down.\n", dev->name);
+ bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+ bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
+ mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
+ } else {
+ np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
+ if (pause->rx_pause)
+ np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
+ if (pause->tx_pause)
+ np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
+
+ if (!netif_running(dev))
+ nv_update_linkspeed(dev);
+ else
+ nv_update_pause(dev, np->pause_flags);
+ }
+
+ if (netif_running(dev)) {
+ nv_start_rx(dev);
+ nv_start_tx(dev);
+ nv_enable_irq(dev);
+ }
+ return 0;
+}
+
static struct ethtool_ops ops = {
.get_drvinfo = nv_get_drvinfo,
.get_link = ethtool_op_get_link,
@@ -2875,6 +2990,8 @@ static struct ethtool_ops ops = {
#endif
.get_ringparam = nv_get_ringparam,
.set_ringparam = nv_set_ringparam,
+ .get_pauseparam = nv_get_pauseparam,
+ .set_pauseparam = nv_set_pauseparam,
};
static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
@@ -3350,9 +3467,9 @@ static int __devinit nv_probe(struct pci
np->msi_flags |= NV_MSI_X_CAPABLE;
}
- np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE;
+ np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG;
if (id->driver_data & DEV_HAS_PAUSEFRAME_TX) {
- np->pause_flags |= NV_PAUSEFRAME_TX_CAPABLE;
+ np->pause_flags |= NV_PAUSEFRAME_TX_CAPABLE | NV_PAUSEFRAME_TX_REQ;
}
_
Patches currently in -mm which might be from aabdulla@xxxxxxxxxx are
git-netdev-all.patch
forcedeth-typecast-cleanup.patch
lock-validator-forcedethc-fix.patch
-
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