pktgen: reorganize transmit loop
Handle standard (and non-standard) return values in a switch. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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5b8db2f568
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@ -3424,27 +3424,29 @@ static void pktgen_xmit(struct pktgen_dev *pkt_dev)
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pkt_dev->last_ok = 0;
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else {
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atomic_inc(&(pkt_dev->skb->users));
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retry_now:
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retry_now:
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ret = (*xmit)(pkt_dev->skb, odev);
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if (likely(ret == NETDEV_TX_OK)) {
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switch (ret) {
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case NETDEV_TX_OK:
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txq_trans_update(txq);
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pkt_dev->last_ok = 1;
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pkt_dev->sofar++;
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pkt_dev->seq_num++;
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pkt_dev->tx_bytes += pkt_dev->cur_pkt_size;
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} else if (ret == NETDEV_TX_LOCKED
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&& (odev->features & NETIF_F_LLTX)) {
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break;
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case NETDEV_TX_LOCKED:
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cpu_relax();
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goto retry_now;
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} else { /* Retry it next time */
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atomic_dec(&(pkt_dev->skb->users));
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if (debug && net_ratelimit())
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printk(KERN_INFO "pktgen: Hard xmit error\n");
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default: /* Drivers are not supposed to return other values! */
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if (net_ratelimit())
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pr_info("pktgen: %s xmit error: %d\n",
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odev->name, ret);
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pkt_dev->errors++;
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/* fallthru */
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case NETDEV_TX_BUSY:
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/* Retry it next time */
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atomic_dec(&(pkt_dev->skb->users));
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pkt_dev->last_ok = 0;
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}
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