Sumeet Lahorani wrote:
> Does this packet drop always occur at the host or could it also occur in
> the switches (Voltaire ISR 9024)?
The drop happens at the host, here's the relevant ipoib code snippet from
drivers/infiniband/ulp/ipoib/ipoib_ib.c :: ipoib_send()
> if (unlikely(skb->len > priv->mcast_mtu + IPOIB_ENCAP_LEN)) {
> ipoib_warn(priv, "packet len %d (> %d) too long to
> send, dropping\n",
> skb->len, priv->mcast_mtu + IPOIB_ENCAP_LEN);
> ++dev->stats.tx_dropped;
> ++dev->stats.tx_errors;
> ipoib_cm_skb_too_long(dev, skb, priv->mcast_mtu);
> return;
> Also, besides the "packet len too long ..." message, is the "dropped"
> statistic in ifconfig ib0 a good way to find out if such packet drops
> are happening?
yes, see the code above.
Or.
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