eth_link_get_nowait() in your APP, that
> > will reduce interrupt from vf to pf in mailbox read.
> >
> >
> >> -Original Message-
> >> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Luca Boccassi
> >> Sent: Wednesday, August 15, 2018 10:15 PM
gt; > That means in rte_eth_link_get_nowait(), code will skip this mailbox
> > > read interrupt, only in
> > > rte_eth_link_get() there will be this interrupt, so I think what you
> > > need to is just replace
> > > rte_eth_link_get() with rte_eth_link_get_nowait
th rte_eth_link_get_nowait() in your APP,
> > that will reduce interrupt from vf to pf in mailbox read.
> >
> >
> > > -Original Message-
> > > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Luca
> > > Boccassi
> > > Sent: W
t() in your APP,
that will reduce interrupt from vf to pf in mailbox read.
-Original Message-
From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Luca Boccassi
Sent: Wednesday, August 15, 2018 10:15 PM
To: dev@dpdk.org
Cc: Lu, Wenzhuo ; Ananyev, Konstantin
; Luca Boccassi ;
sta...@dpd
i
> Sent: Wednesday, August 15, 2018 10:15 PM
> To: dev@dpdk.org
> Cc: Lu, Wenzhuo ; Ananyev, Konstantin
> ; Luca Boccassi ;
> sta...@dpdk.org
> Subject: [dpdk-dev] [PATCH] net/ixgbe: reduce PF mailbox interrupt rate
>
> We have observed high rate of NIC PF interrupts when VNF
On Wed, 2018-08-15 at 15:14 +0100, Luca Boccassi wrote:
> We have observed high rate of NIC PF interrupts when VNF is using
> DPDK
> APIs rte_eth_link_get_nowait() and rte_eth_link_get() functions, as
> they are causing VF driver to send many MBOX ACK messages.
Ping. Any chance this could be revie
We have observed high rate of NIC PF interrupts when VNF is using DPDK
APIs rte_eth_link_get_nowait() and rte_eth_link_get() functions, as
they are causing VF driver to send many MBOX ACK messages.
With these changes, the interrupt rates go down significantly. Here's
some testing results:
Without
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