[PATCH] sky2: transmit logic fixes

Some transmit side small fixes:
 * When computing number of list elements per transmit, do full
   comparision to check for checksuming.
 * Get rid of racy check for tx_complete
 * Change stop test to match wake condition.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 1eefacbfcd2..8dfd27d4d6e 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1051,7 +1051,7 @@ static inline unsigned tx_le_req(const struct sk_buff *skb)
         if (skb_shinfo(skb)->tso_size)
                 ++count;
 
-        if (skb->ip_summed)
+        if (skb->ip_summed == CHECKSUM_HW)
                 ++count;
 
         return count;
@@ -1207,7 +1207,7 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
         sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod,
                      &sky2->tx_last_put, TX_RING_SIZE);
 
-        if (tx_avail(sky2) < MAX_SKB_TX_LE + 1)
+        if (tx_avail(sky2) <= MAX_SKB_TX_LE)
                 netif_stop_queue(dev);
 
 out_unlock:
@@ -1229,8 +1229,7 @@ static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
         struct net_device *dev = sky2->netdev;
         unsigned i;
 
-        if (done == sky2->tx_cons)
-                return;
+        BUG_ON(done >= TX_RING_SIZE);
 
         if (unlikely(netif_msg_tx_done(sky2)))
                 printk(KERN_DEBUG "%s: tx done, up to %u\n",