diff options
| -rw-r--r-- | drivers/net/ipg.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/drivers/net/ipg.c b/drivers/net/ipg.c index cd1650e99369..9752902f2d9a 100644 --- a/drivers/net/ipg.c +++ b/drivers/net/ipg.c @@ -857,21 +857,14 @@ static void init_tfdlist(struct net_device *dev) static void ipg_nic_txfree(struct net_device *dev) { struct ipg_nic_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->ioaddr; - unsigned int curr; - u64 txd_map; - unsigned int released, pending; - - txd_map = (u64)sp->txd_map; - curr = ipg_r32(TFD_LIST_PTR_0) - - do_div(txd_map, sizeof(struct ipg_tx)) - 1; + unsigned int released, pending, dirty; IPG_DEBUG_MSG("_nic_txfree\n"); pending = sp->tx_current - sp->tx_dirty; + dirty = sp->tx_dirty % IPG_TFDLIST_LENGTH; for (released = 0; released < pending; released++) { - unsigned int dirty = sp->tx_dirty % IPG_TFDLIST_LENGTH; struct sk_buff *skb = sp->TxBuff[dirty]; struct ipg_tx *txfd = sp->txd + dirty; @@ -882,11 +875,8 @@ static void ipg_nic_txfree(struct net_device *dev) * If the TFDDone bit is set, free the associated * buffer. */ - if (dirty == curr) - break; - - /* Setup TFDDONE for compatible issue. */ - txfd->tfc |= cpu_to_le64(IPG_TFC_TFDDONE); + if (!(txfd->tfc & cpu_to_le64(IPG_TFC_TFDDONE))) + break; /* Free the transmit buffer. */ if (skb) { @@ -898,6 +888,7 @@ static void ipg_nic_txfree(struct net_device *dev) sp->TxBuff[dirty] = NULL; } + dirty = (dirty + 1) % IPG_TFDLIST_LENGTH; } sp->tx_dirty += released; |