* Maintainer: Kumar Gala
*
* Copyright (c) 2002-2006 Freescale Semiconductor, Inc.
+ * Copyright (c) 2007 MontaVista Software, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, int length);
static void gfar_vlan_rx_register(struct net_device *netdev,
struct vlan_group *grp);
-static void gfar_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid);
void gfar_halt(struct net_device *dev);
void gfar_start(struct net_device *dev);
static void gfar_clear_exact_match(struct net_device *dev);
if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_VLAN) {
dev->vlan_rx_register = gfar_vlan_rx_register;
- dev->vlan_rx_kill_vid = gfar_vlan_rx_kill_vid;
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
/* Tell the controller what the protocol is */
/* And provide the already calculated phcs */
- if (skb->nh.iph->protocol == IPPROTO_UDP) {
+ if (ip_hdr(skb)->protocol == IPPROTO_UDP) {
flags |= TXFCB_UDP;
- fcb->phcs = skb->h.uh->check;
+ fcb->phcs = udp_hdr(skb)->check;
} else
- fcb->phcs = skb->h.th->check;
+ fcb->phcs = udp_hdr(skb)->check;
/* l3os is the distance between the start of the
* frame (skb->data) and the start of the IP hdr.
* l4os is the distance between the start of the
* l3 hdr and the l4 hdr */
- fcb->l3os = (u16)(skb->nh.raw - skb->data - GMAC_FCB_LEN);
- fcb->l4os = (u16)(skb->h.raw - skb->nh.raw);
+ fcb->l3os = (u16)(skb_network_offset(skb) - GMAC_FCB_LEN);
+ fcb->l4os = skb_network_header_len(skb);
fcb->flags = flags;
}
dev->trans_start = jiffies;
+ /* The powerpc-specific eieio() is used, as wmb() has too strong
+ * semantics (it requires synchronization between cacheable and
+ * uncacheable mappings, which eieio doesn't provide and which we
+ * don't need), thus requiring a more expensive sync instruction. At
+ * some point, the set of architecture-independent barrier functions
+ * should be expanded to include weaker barriers.
+ */
+
+ eieio();
txbdp->status = status;
/* If this was the last BD in the ring, the next one */
spin_unlock_irqrestore(&priv->rxlock, flags);
}
-
-static void gfar_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid)
-{
- struct gfar_private *priv = netdev_priv(dev);
- unsigned long flags;
-
- spin_lock_irqsave(&priv->rxlock, flags);
-
- if (priv->vlgrp)
- priv->vlgrp->vlan_devices[vid] = NULL;
-
- spin_unlock_irqrestore(&priv->rxlock, flags);
-}
-
-
static int gfar_change_mtu(struct net_device *dev, int new_mtu)
{
int tempsize, tempval;
*/
skb_reserve(skb, alignamount);
- skb->dev = dev;
-
bdp->bufPtr = dma_map_single(NULL, skb->data,
priv->rx_buffer_size, DMA_FROM_DEVICE);
bdp->length = 0;
/* Mark the buffer empty */
+ eieio();
bdp->status |= (RXBD_EMPTY | RXBD_INTERRUPT);
return skb;
bdp = priv->cur_rx;
while (!((bdp->status & RXBD_EMPTY) || (--rx_work_limit < 0))) {
+ rmb();
skb = priv->rx_skbuff[priv->skb_currx];
if (!(bdp->status &
/* Save ievent for future reference */
u32 events = gfar_read(&priv->regs->ievent);
- /* Clear IEVENT */
- gfar_write(&priv->regs->ievent, events);
-
/* Check for reception */
- if ((events & IEVENT_RXF0) || (events & IEVENT_RXB0))
+ if (events & IEVENT_RX_MASK)
gfar_receive(irq, dev_id);
/* Check for transmit completion */
- if ((events & IEVENT_TXF) || (events & IEVENT_TXB))
+ if (events & IEVENT_TX_MASK)
gfar_transmit(irq, dev_id);
- /* Update error statistics */
- if (events & IEVENT_TXE) {
- priv->stats.tx_errors++;
-
- if (events & IEVENT_LC)
- priv->stats.tx_window_errors++;
- if (events & IEVENT_CRL)
- priv->stats.tx_aborted_errors++;
- if (events & IEVENT_XFUN) {
- if (netif_msg_tx_err(priv))
- printk(KERN_WARNING "%s: tx underrun. dropped packet\n", dev->name);
- priv->stats.tx_dropped++;
- priv->extra_stats.tx_underrun++;
-
- /* Reactivate the Tx Queues */
- gfar_write(&priv->regs->tstat, TSTAT_CLEAR_THALT);
- }
- }
- if (events & IEVENT_BSY) {
- priv->stats.rx_errors++;
- priv->extra_stats.rx_bsy++;
-
- gfar_receive(irq, dev_id);
-
-#ifndef CONFIG_GFAR_NAPI
- /* Clear the halt bit in RSTAT */
- gfar_write(&priv->regs->rstat, RSTAT_CLEAR_RHALT);
-#endif
-
- if (netif_msg_rx_err(priv))
- printk(KERN_DEBUG "%s: busy error (rhalt: %x)\n",
- dev->name,
- gfar_read(&priv->regs->rstat));
- }
- if (events & IEVENT_BABR) {
- priv->stats.rx_errors++;
- priv->extra_stats.rx_babr++;
-
- if (netif_msg_rx_err(priv))
- printk(KERN_DEBUG "%s: babbling error\n", dev->name);
- }
- if (events & IEVENT_EBERR) {
- priv->extra_stats.eberr++;
- if (netif_msg_rx_err(priv))
- printk(KERN_DEBUG "%s: EBERR\n", dev->name);
- }
- if ((events & IEVENT_RXC) && (netif_msg_rx_err(priv)))
- printk(KERN_DEBUG "%s: control frame\n", dev->name);
-
- if (events & IEVENT_BABT) {
- priv->extra_stats.tx_babt++;
- if (netif_msg_rx_err(priv))
- printk(KERN_DEBUG "%s: babt error\n", dev->name);
- }
+ /* Check for errors */
+ if (events & IEVENT_ERR_MASK)
+ gfar_error(irq, dev_id);
return IRQ_HANDLED;
}
/* Hmm... */
if (netif_msg_rx_err(priv) || netif_msg_tx_err(priv))
printk(KERN_DEBUG "%s: error interrupt (ievent=0x%08x imask=0x%08x)\n",
- dev->name, events, gfar_read(&priv->regs->imask));
+ dev->name, events, gfar_read(&priv->regs->imask));
/* Update the error counters */
if (events & IEVENT_TXE) {
priv->stats.tx_aborted_errors++;
if (events & IEVENT_XFUN) {
if (netif_msg_tx_err(priv))
- printk(KERN_DEBUG "%s: underrun. packet dropped.\n",
- dev->name);
+ printk(KERN_DEBUG "%s: TX FIFO underrun, "
+ "packet dropped.\n", dev->name);
priv->stats.tx_dropped++;
priv->extra_stats.tx_underrun++;
#endif
if (netif_msg_rx_err(priv))
- printk(KERN_DEBUG "%s: busy error (rhalt: %x)\n",
- dev->name,
- gfar_read(&priv->regs->rstat));
+ printk(KERN_DEBUG "%s: busy error (rstat: %x)\n",
+ dev->name, gfar_read(&priv->regs->rstat));
}
if (events & IEVENT_BABR) {
priv->stats.rx_errors++;
priv->extra_stats.rx_babr++;
if (netif_msg_rx_err(priv))
- printk(KERN_DEBUG "%s: babbling error\n", dev->name);
+ printk(KERN_DEBUG "%s: babbling RX error\n", dev->name);
}
if (events & IEVENT_EBERR) {
priv->extra_stats.eberr++;
if (netif_msg_rx_err(priv))
- printk(KERN_DEBUG "%s: EBERR\n", dev->name);
+ printk(KERN_DEBUG "%s: bus error\n", dev->name);
}
if ((events & IEVENT_RXC) && netif_msg_rx_status(priv))
- if (netif_msg_rx_status(priv))
- printk(KERN_DEBUG "%s: control frame\n", dev->name);
+ printk(KERN_DEBUG "%s: control frame\n", dev->name);
if (events & IEVENT_BABT) {
priv->extra_stats.tx_babt++;
if (netif_msg_tx_err(priv))
- printk(KERN_DEBUG "%s: babt error\n", dev->name);
+ printk(KERN_DEBUG "%s: babbling TX error\n", dev->name);
}
return IRQ_HANDLED;
}
projects / linux-2.6-omap-h63xx.git / blobdiff