[PATCH] forcedeth config: flow control
This patch allows for configurable flow control through ethtool support. Signed-Off-By: Ayaz Abdulla <aabdulla@nvidia.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Ayaz Abdulla
Jeff Garzik
parent
eafa59f6bc
commit
b6d0773fa7
@ -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_device *dev)
|
||||
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_device *dev)
|
||||
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 net_device *dev)
|
||||
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 net_device *dev)
|
||||
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 net_device *dev)
|
||||
}
|
||||
}
|
||||
|
||||
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);
|
||||
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) {
|
||||
np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE;
|
||||
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;
|
||||
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;
|
||||
}
|
||||
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_device *dev, struct ethtool_cmd *ecmd)
|
||||
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_device *dev, struct ethtool_cmd *ecmd)
|
||||
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;
|
||||
|
||||
@ -2856,6 +2891,86 @@ 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,
|
||||
@ -2871,6 +2986,8 @@ static struct ethtool_ops ops = {
|
||||
.set_tso = nv_set_tso,
|
||||
.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)
|
||||
@ -3346,9 +3463,9 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
|
||||
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;
|
||||
}
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user