[ARCNET]: Fix return value from arcnet_send_packet().
Pieter Dejaeghere [Wed, 7 Sep 2005 02:54:48 +0000 (19:54 -0700)]
From: Pieter Dejaeghere <pieter@dejaeghere.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/arcnet/arcnet.c

index 4f9f69e..12ef52c 100644 (file)
@@ -597,7 +597,7 @@ static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev)
        struct ArcProto *proto;
        int txbuf;
        unsigned long flags;
-       int freeskb = 0;
+       int freeskb, retval;
 
        BUGMSG(D_DURING,
               "transmit requested (status=%Xh, txbufs=%d/%d, len=%d, protocol %x)\n",
@@ -615,7 +615,7 @@ static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev)
        if (skb->len - ARC_HDR_SIZE > XMTU && !proto->continue_tx) {
                BUGMSG(D_NORMAL, "fixme: packet too large: compensating badly!\n");
                dev_kfree_skb(skb);
-               return 0;       /* don't try again */
+               return NETDEV_TX_OK;    /* don't try again */
        }
 
        /* We're busy transmitting a packet... */
@@ -623,8 +623,11 @@ static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev)
 
        spin_lock_irqsave(&lp->lock, flags);
        AINTMASK(0);
-
-       txbuf = get_arcbuf(dev);
+       if(lp->next_tx == -1)
+               txbuf = get_arcbuf(dev);
+       else {
+               txbuf = -1;
+       }
        if (txbuf != -1) {
                if (proto->prepare_tx(dev, pkt, skb->len, txbuf) &&
                    !proto->ack_tx) {
@@ -638,6 +641,8 @@ static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev)
                        lp->outgoing.skb = skb;
                        lp->outgoing.pkt = pkt;
 
+                       freeskb = 0;
+
                        if (proto->continue_tx &&
                            proto->continue_tx(dev, txbuf)) {
                          BUGMSG(D_NORMAL,
@@ -645,10 +650,12 @@ static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev)
                                 "(proto='%c')\n", proto->suffix);
                        }
                }
-
+               retval = NETDEV_TX_OK;
+               dev->trans_start = jiffies;
                lp->next_tx = txbuf;
        } else {
-               freeskb = 1;
+               retval = NETDEV_TX_BUSY;
+               freeskb = 0;
        }
 
        BUGMSG(D_DEBUG, "%s: %d: %s, status: %x\n",__FILE__,__LINE__,__FUNCTION__,ASTATUS());
@@ -664,7 +671,7 @@ static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev)
        if (freeskb) {
                dev_kfree_skb(skb);
        }
-       return 0;               /* no need to try again */
+       return retval;          /* no need to try again */
 }
 
 
@@ -690,7 +697,6 @@ static int go_tx(struct net_device *dev)
        /* start sending */
        ACOMMAND(TXcmd | (lp->cur_tx << 3));
 
-       dev->trans_start = jiffies;
        lp->stats.tx_packets++;
        lp->lasttrans_dest = lp->lastload_dest;
        lp->lastload_dest = 0;
@@ -917,6 +923,9 @@ irqreturn_t arcnet_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 
                        BUGMSG(D_RECON, "Network reconfiguration detected (status=%Xh)\n",
                               status);
+                       /* MYRECON bit is at bit 7 of diagstatus */
+                       if(diagstatus & 0x80)
+                               BUGMSG(D_RECON,"Put out that recon myself\n");
 
                        /* is the RECON info empty or old? */
                        if (!lp->first_recon || !lp->last_recon ||