[dpdk-dev] [PATCH v4 0/7] e1000: add rx interrupt support

[Liu, Yong]

Thanks Thomas.

> -----Original Message-----
> From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com]
> Sent: Friday, October 30, 2015 2:19 AM
> To: Liu, Yong
> Cc: dev at dpdk.org; Mcnamara, John
> Subject: Re: [dpdk-dev] [PATCH v4 0/7] e1000: add rx interrupt support
> 
> 2015-10-29 23:56, Yong Liu:
> > This patch set will enable interrup for physical and emulated e1000
> device.
> > Rx queue interrupt will work with uio driver or vfio driver with msi
> mode.
> > l3fwd-power will disable interrupt immediately when wake-up for that
> e1000 not
> > support interrupt auto clear.
> > LSC and rxq interrupt will be seperated for e1000 can only support one
> > interrupt cause in the same time.
> 
> Don't you think it should be explained in a doc?
> 	doc/guides/nics/e1000em.rst

Yes, will update those information in the doc.

> I'm especially confused by the need of changing an example for this PMD.
> Does it mean the API behaviour must be changed?
> 

After return back from sleep, Rx interrupt should always disabled until return to sleep.
Some NICs like Niantic and Fortville support interrupt auto disable, so it worked normally.
But e1000 not support that, so add rte_eth_dev_rx_intr_disable here to disable related interrupt.

> [...]
> > Marvin Liu (7):
> >   e1000: add rx interrupt support
> >   e1000: separate lsc and rxq interrupt disable function
> >   e1000: add ethdev rxq enable and disable function
> >   e1000: add rxq interrupt handler
> >   e1000: check lsc and rxq not enable in the same time
> >   e1000: lsc interrupt setup function only enable itself
> >   l3fwd-power: disable interrupt when wake up from sleep
> 
> Announcing a support in first patch and making it work later
> is a strange logic to review.
> 
> You forgot to keep the Acked-by: Cunming Liang <cunming.liang at intel.com>
> 
> Applied in this order:
> 	e1000: restrict link interrupt setup scope
> 	e1000: separate link and Rx interrupt disabling
> 	e1000: support Rx interrupt setup
> 	e1000: add Rx interrupt handler
> 	l3fwd-power: disable Rx interrupt when waking up
> Thanks