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gianfar: do vlan cleanup

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- unify vlan and nonvlan rx path
- kill priv->vlgrp and gfar_vlan_rx_register
- allow to turn on/off rx/tx vlan accel via ethtool

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2011-07-20 04:54:19 +00:00 committed by David S. Miller
parent 6ede746b62
commit 87c288c6e9
3 changed files with 33 additions and 28 deletions
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55
drivers/net/gianfar.c
View File

@ -140,8 +140,6 @@ int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit);
static int gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue);
static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
int amount_pull);
static void gfar_vlan_rx_register(struct net_device *netdev,
struct vlan_group *grp);
void gfar_halt(struct net_device *dev);
static void gfar_halt_nodisable(struct net_device *dev);
void gfar_start(struct net_device *dev);
@ -391,10 +389,11 @@ static void gfar_init_mac(struct net_device *ndev)
rctrl |= RCTRL_PRSDEP_INIT | RCTRL_TS_ENABLE;
/* keep vlan related bits if it's enabled */
if (priv->vlgrp) {
if (ndev->features & NETIF_F_HW_VLAN_TX)
rctrl |= RCTRL_VLEX | RCTRL_PRSDEP_INIT;
if (ndev->features & NETIF_F_HW_VLAN_RX)
tctrl |= TCTRL_VLINS;
}
/* Init rctrl based on our settings */
gfar_write(&regs->rctrl, rctrl);
@ -467,7 +466,6 @@ static const struct net_device_ops gfar_netdev_ops = {
.ndo_tx_timeout = gfar_timeout,
.ndo_do_ioctl = gfar_ioctl,
.ndo_get_stats = gfar_get_stats,
.ndo_vlan_rx_register = gfar_vlan_rx_register,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
@ -507,10 +505,17 @@ void unlock_tx_qs(struct gfar_private *priv)
spin_unlock(&priv->tx_queue[i]->txlock);
}
static bool gfar_is_vlan_on(struct gfar_private *priv)
{
return (priv->ndev->features & NETIF_F_HW_VLAN_RX) ||
(priv->ndev->features & NETIF_F_HW_VLAN_TX);
}
/* Returns 1 if incoming frames use an FCB */
static inline int gfar_uses_fcb(struct gfar_private *priv)
{
return priv->vlgrp || (priv->ndev->features & NETIF_F_RXCSUM) ||
return gfar_is_vlan_on(priv) ||
(priv->ndev->features & NETIF_F_RXCSUM) ||
(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER);
}
@ -1038,10 +1043,10 @@ static int gfar_probe(struct platform_device *ofdev)
NETIF_F_RXCSUM | NETIF_F_HIGHDMA;
}
priv->vlgrp = NULL;
if (priv->device_flags & FSL_GIANFAR_DEV_HAS_VLAN)
if (priv->device_flags & FSL_GIANFAR_DEV_HAS_VLAN) {
dev->hw_features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
}
if (priv->device_flags & FSL_GIANFAR_DEV_HAS_EXTENDED_HASH) {
priv->extended_hash = 1;
@ -2304,10 +2309,8 @@ void gfar_check_rx_parser_mode(struct gfar_private *priv)
gfar_write(&regs->rctrl, tempval);
}
/* Enables and disables VLAN insertion/extraction */
static void gfar_vlan_rx_register(struct net_device *dev,
struct vlan_group *grp)
void gfar_vlan_mode(struct net_device *dev, u32 features)
{
struct gfar_private *priv = netdev_priv(dev);
struct gfar __iomem *regs = NULL;
@ -2318,25 +2321,24 @@ static void gfar_vlan_rx_register(struct net_device *dev,
local_irq_save(flags);
lock_rx_qs(priv);
priv->vlgrp = grp;
if (grp) {
if (features & NETIF_F_HW_VLAN_TX) {
/* Enable VLAN tag insertion */
tempval = gfar_read(&regs->tctrl);
tempval |= TCTRL_VLINS;
gfar_write(&regs->tctrl, tempval);
/* Enable VLAN tag extraction */
tempval = gfar_read(&regs->rctrl);
tempval |= (RCTRL_VLEX | RCTRL_PRSDEP_INIT);
gfar_write(&regs->rctrl, tempval);
} else {
/* Disable VLAN tag insertion */
tempval = gfar_read(&regs->tctrl);
tempval &= ~TCTRL_VLINS;
gfar_write(&regs->tctrl, tempval);
}
if (features & NETIF_F_HW_VLAN_RX) {
/* Enable VLAN tag extraction */
tempval = gfar_read(&regs->rctrl);
tempval |= (RCTRL_VLEX | RCTRL_PRSDEP_INIT);
gfar_write(&regs->rctrl, tempval);
} else {
/* Disable VLAN tag extraction */
tempval = gfar_read(&regs->rctrl);
tempval &= ~RCTRL_VLEX;
@ -2359,7 +2361,7 @@ static int gfar_change_mtu(struct net_device *dev, int new_mtu)
int oldsize = priv->rx_buffer_size;
int frame_size = new_mtu + ETH_HLEN;
if (priv->vlgrp)
if (gfar_is_vlan_on(priv))
frame_size += VLAN_HLEN;
if ((frame_size < 64) || (frame_size > JUMBO_FRAME_SIZE)) {
@ -2712,11 +2714,12 @@ static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
/* Tell the skb what kind of packet this is */
skb->protocol = eth_type_trans(skb, dev);
/* Set vlan tag */
if (fcb->flags & RXFCB_VLN)
__vlan_hwaccel_put_tag(skb, fcb->vlctl);
/* Send the packet up the stack */
if (unlikely(priv->vlgrp && (fcb->flags & RXFCB_VLN)))
ret = vlan_hwaccel_receive_skb(skb, priv->vlgrp, fcb->vlctl);
else
ret = netif_receive_skb(skb);
ret = netif_receive_skb(skb);
if (NET_RX_DROP == ret)
priv->extra_stats.kernel_dropped++;

3
drivers/net/gianfar.h
View File

@ -1077,8 +1077,6 @@ struct gfar_private {
struct sk_buff_head rx_recycle;
struct vlan_group *vlgrp;
/* RX queue filer rule set*/
struct ethtool_rx_list rx_list;
struct mutex rx_queue_access;
@ -1183,6 +1181,7 @@ extern void gfar_configure_coalescing(struct gfar_private *priv,
void gfar_init_sysfs(struct net_device *dev);
int gfar_set_features(struct net_device *dev, u32 features);
extern void gfar_check_rx_parser_mode(struct gfar_private *priv);
extern void gfar_vlan_mode(struct net_device *dev, u32 features);
extern const struct ethtool_ops gfar_ethtool_ops;

3
drivers/net/gianfar_ethtool.c
View File

@ -526,6 +526,9 @@ int gfar_set_features(struct net_device *dev, u32 features)
int err = 0, i = 0;
u32 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;