int gfar_set_features(struct net_device *dev, netdev_features_t features)
{
netdev_features_t changed = dev->features ^ features;
struct gfar_private *priv = netdev_priv(dev);
int err = 0;
if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_RXCSUM)))
return 0;
while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
cpu_relax();
dev->features = features;
if (dev->flags & IFF_UP) {
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
err = startup_gfar(dev);
} else {
gfar_mac_reset(priv);
}
clear_bit_unlock(GFAR_RESETTING, &priv->state);
return err;
}
static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
{
struct gfar_private *priv = netdev_priv(dev);
unsigned long flags;
int err = 0;
if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
return -EOPNOTSUPP;
if (dev->flags & IFF_UP) {
/* Halt TX and RX, and process the frames which
* have already been received */
spin_lock_irqsave(&priv->txlock, flags);
spin_lock(&priv->rxlock);
gfar_halt(dev);
gfar_clean_rx_ring(dev, priv->rx_ring_size);
spin_unlock(&priv->rxlock);
spin_unlock_irqrestore(&priv->txlock, flags);
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
}
spin_lock_irqsave(&priv->bflock, flags);
priv->rx_csum_enable = data;
spin_unlock_irqrestore(&priv->bflock, flags);
if (dev->flags & IFF_UP)
err = startup_gfar(dev);
return err;
}
/* Change the current ring parameters, stopping the controller if
* necessary so that we don't mess things up while we're in
* motion. We wait for the ring to be clean before reallocating
* the rings. */
static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
{
struct gfar_private *priv = netdev_priv(dev);
int err = 0, i = 0;
if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
return -EINVAL;
if (!is_power_of_2(rvals->rx_pending)) {
printk("%s: Ring sizes must be a power of 2\n",
dev->name);
return -EINVAL;
}
if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
return -EINVAL;
if (!is_power_of_2(rvals->tx_pending)) {
printk("%s: Ring sizes must be a power of 2\n",
dev->name);
return -EINVAL;
}
if (dev->flags & IFF_UP) {
unsigned long flags;
/* Halt TX and RX, and process the frames which
* have already been received */
local_irq_save(flags);
lock_tx_qs(priv);
lock_rx_qs(priv);
gfar_halt(dev);
unlock_rx_qs(priv);
unlock_tx_qs(priv);
local_irq_restore(flags);
for (i = 0; i < priv->num_rx_queues; i++)
gfar_clean_rx_ring(priv->rx_queue[i],
priv->rx_queue[i]->rx_ring_size);
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
}
/* Change the size */
for (i = 0; i < priv->num_rx_queues; i++) {
priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
priv->tx_queue[i]->num_txbdfree = priv->tx_queue[i]->tx_ring_size;
}
/* Rebuild the rings with the new size */
if (dev->flags & IFF_UP) {
err = startup_gfar(dev);
netif_tx_wake_all_queues(dev);
}
return err;
}
/* Change the current ring parameters, stopping the controller if
* necessary so that we don't mess things up while we're in
* motion. We wait for the ring to be clean before reallocating
* the rings. */
static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
{
struct gfar_private *priv = netdev_priv(dev);
int err = 0;
if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
return -EINVAL;
if (!is_power_of_2(rvals->rx_pending)) {
printk("%s: Ring sizes must be a power of 2\n",
dev->name);
return -EINVAL;
}
if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
return -EINVAL;
if (!is_power_of_2(rvals->tx_pending)) {
printk("%s: Ring sizes must be a power of 2\n",
dev->name);
return -EINVAL;
}
if (dev->flags & IFF_UP) {
unsigned long flags;
/* Halt TX and RX, and process the frames which
* have already been received */
spin_lock_irqsave(&priv->txlock, flags);
spin_lock(&priv->rxlock);
gfar_halt(dev);
gfar_clean_rx_ring(dev, priv->rx_ring_size);
spin_unlock(&priv->rxlock);
spin_unlock_irqrestore(&priv->txlock, flags);
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
}
/* Change the size */
priv->rx_ring_size = rvals->rx_pending;
priv->tx_ring_size = rvals->tx_pending;
/* Rebuild the rings with the new size */
if (dev->flags & IFF_UP)
err = startup_gfar(dev);
return err;
}
/* Change the current ring parameters, stopping the controller if
* necessary so that we don't mess things up while we're in motion.
*/
static int gfar_sringparam(struct net_device *dev,
struct ethtool_ringparam *rvals)
{
struct gfar_private *priv = netdev_priv(dev);
int err = 0, i;
if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
return -EINVAL;
if (!is_power_of_2(rvals->rx_pending)) {
netdev_err(dev, "Ring sizes must be a power of 2\n");
return -EINVAL;
}
if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
return -EINVAL;
if (!is_power_of_2(rvals->tx_pending)) {
netdev_err(dev, "Ring sizes must be a power of 2\n");
return -EINVAL;
}
while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
cpu_relax();
if (dev->flags & IFF_UP)
stop_gfar(dev);
/* Change the sizes */
for (i = 0; i < priv->num_rx_queues; i++)
priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
for (i = 0; i < priv->num_tx_queues; i++)
priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
/* Rebuild the rings with the new size */
if (dev->flags & IFF_UP)
err = startup_gfar(dev);
clear_bit_unlock(GFAR_RESETTING, &priv->state);
return err;
}
static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
{
struct gfar_private *priv = netdev_priv(dev);
unsigned long flags;
int err = 0, i = 0;
if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
return -EOPNOTSUPP;
if (dev->flags & IFF_UP) {
/* Halt TX and RX, and process the frames which
* have already been received */
local_irq_save(flags);
lock_tx_qs(priv);
lock_rx_qs(priv);
gfar_halt(dev);
unlock_tx_qs(priv);
unlock_rx_qs(priv);
local_irq_save(flags);
for (i = 0; i < priv->num_rx_queues; i++)
gfar_clean_rx_ring(priv->rx_queue[i],
priv->rx_queue[i]->rx_ring_size);
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
}
spin_lock_irqsave(&priv->bflock, flags);
priv->rx_csum_enable = data;
spin_unlock_irqrestore(&priv->bflock, flags);
if (dev->flags & IFF_UP) {
err = startup_gfar(dev);
netif_tx_wake_all_queues(dev);
}
return err;
}
int gfar_set_features(struct net_device *dev, netdev_features_t features)
{
struct gfar_private *priv = netdev_priv(dev);
unsigned long flags;
int err = 0, i = 0;
netdev_features_t changed = dev->features ^ features;
if (changed & (NETIF_F_HW_VLAN_TX|NETIF_F_HW_VLAN_RX))
gfar_vlan_mode(dev, features);
if (!(changed & NETIF_F_RXCSUM))
return 0;
if (dev->flags & IFF_UP) {
/* Halt TX and RX, and process the frames which
* have already been received
*/
local_irq_save(flags);
lock_tx_qs(priv);
lock_rx_qs(priv);
gfar_halt(dev);
unlock_tx_qs(priv);
unlock_rx_qs(priv);
local_irq_restore(flags);
for (i = 0; i < priv->num_rx_queues; i++)
gfar_clean_rx_ring(priv->rx_queue[i],
priv->rx_queue[i]->rx_ring_size);
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
dev->features = features;
err = startup_gfar(dev);
netif_tx_wake_all_queues(dev);
}
return err;
}
/* Change the coalescing values.
* Both cvals->*_usecs and cvals->*_frames have to be > 0
* in order for coalescing to be active
*/
static int gfar_scoalesce(struct net_device *dev,
struct ethtool_coalesce *cvals)
{
struct gfar_private *priv = netdev_priv(dev);
int i, err = 0;
if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
return -EOPNOTSUPP;
if (NULL == priv->phydev)
return -ENODEV;
/* Check the bounds of the values */
if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
netdev_info(dev, "Coalescing is limited to %d microseconds\n",
GFAR_MAX_COAL_USECS);
return -EINVAL;
}
if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
netdev_info(dev, "Coalescing is limited to %d frames\n",
GFAR_MAX_COAL_FRAMES);
return -EINVAL;
}
/* Check the bounds of the values */
if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
netdev_info(dev, "Coalescing is limited to %d microseconds\n",
GFAR_MAX_COAL_USECS);
return -EINVAL;
}
if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
netdev_info(dev, "Coalescing is limited to %d frames\n",
GFAR_MAX_COAL_FRAMES);
return -EINVAL;
}
while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
cpu_relax();
/* Set up rx coalescing */
if ((cvals->rx_coalesce_usecs == 0) ||
(cvals->rx_max_coalesced_frames == 0)) {
for (i = 0; i < priv->num_rx_queues; i++)
priv->rx_queue[i]->rxcoalescing = 0;
} else {
for (i = 0; i < priv->num_rx_queues; i++)
priv->rx_queue[i]->rxcoalescing = 1;
}
for (i = 0; i < priv->num_rx_queues; i++) {
priv->rx_queue[i]->rxic = mk_ic_value(
cvals->rx_max_coalesced_frames,
gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
}
/* Set up tx coalescing */
if ((cvals->tx_coalesce_usecs == 0) ||
(cvals->tx_max_coalesced_frames == 0)) {
for (i = 0; i < priv->num_tx_queues; i++)
priv->tx_queue[i]->txcoalescing = 0;
} else {
for (i = 0; i < priv->num_tx_queues; i++)
priv->tx_queue[i]->txcoalescing = 1;
}
for (i = 0; i < priv->num_tx_queues; i++) {
priv->tx_queue[i]->txic = mk_ic_value(
cvals->tx_max_coalesced_frames,
gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
}
if (dev->flags & IFF_UP) {
stop_gfar(dev);
err = startup_gfar(dev);
} else {
gfar_mac_reset(priv);
}
clear_bit_unlock(GFAR_RESETTING, &priv->state);
return err;
}
