Hi! > So if there is a long time before handling interrupts, > I guess that it makes sense that one stream could > get an advantage in the net scheduler. > > If I find the time, and if no one beats me to it, I will try to replace > the normal timers with HR timers + a smaller default timeout. >
Can you try something like this? Highres timers will be needed, too,
but this fixes the logic problem.
You'll need to apply it twice as code is copy&pasted.
Best regards,
Pavel
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
*/
priv->tx_count_frames += nfrags + 1;
if (likely(priv->tx_coal_frames > priv->tx_count_frames)) {
- mod_timer(&priv->txtimer,
- STMMAC_COAL_TIMER(priv->tx_coal_timer));
+ if (priv->tx_count_frames == nfrags + 1)
+ mod_timer(&priv->txtimer,
+ STMMAC_COAL_TIMER(priv->tx_coal_timer));
} else {
priv->tx_count_frames = 0;
priv->hw->desc->set_tx_ic(desc);
--
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(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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