Re: BQL support in gianfar causes network hickup

On Tue, 2012-11-27 at 13:42 +0100, Keitel, Tino (ALC NetworX GmbH)
wrote:

On Di, 2012-11-27 at 04:36 -0800, Eric Dumazet wrote:

quoted

Can you reproduce the problem using a single cpu ?

Yes, it is a single-CPU system.

Can you reproduce the problem without PTP running, or disabled in the
driver ?

(comment the "priv->hwts_tx_en = 1;" line)


This looks like we miss an interrupt ( or TXBD_INTERRUPT not correctly
set)

And it could be a bug occurring if we try to send one skb with fragments
and skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP