* net_ring, net_memif are missing RX-missed counter
@ 2023-03-15 17:41 Igor Gutorov
2023-03-15 18:44 ` Stephen Hemminger
0 siblings, 1 reply; 2+ messages in thread
From: Igor Gutorov @ 2023-03-15 17:41 UTC (permalink / raw)
To: users
[-- Attachment #1: Type: text/plain, Size: 203 bytes --]
Hi,
I've noticed that net_ring and net_memif PMDs always report RX-missed
counter as 0. Is it just a feature that is missing, or is it something that
fundamentally cannot be implemented for these PMDs?
[-- Attachment #2: Type: text/html, Size: 268 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: net_ring, net_memif are missing RX-missed counter
2023-03-15 17:41 net_ring, net_memif are missing RX-missed counter Igor Gutorov
@ 2023-03-15 18:44 ` Stephen Hemminger
0 siblings, 0 replies; 2+ messages in thread
From: Stephen Hemminger @ 2023-03-15 18:44 UTC (permalink / raw)
To: Igor Gutorov; +Cc: users
On Wed, 15 Mar 2023 20:41:06 +0300
Igor Gutorov <igootorov@gmail.com> wrote:
> Hi,
>
> I've noticed that net_ring and net_memif PMDs always report RX-missed
> counter as 0. Is it just a feature that is missing, or is it something that
> fundamentally cannot be implemented for these PMDs?
Rx missed is used by hardware devices to indicate the packets that
driver could not receive because of lack of resources. It has to come
from the hardware (or maybe the host in a virtual driver).
There probably is not an analogous counter in memif because it would
have to be maintained by the other side (sender) and then have a control
API for it. If it is your application, then the sending side could
report how many times tx_burst was unable to send packets.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2023-03-15 18:44 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-03-15 17:41 net_ring, net_memif are missing RX-missed counter Igor Gutorov
2023-03-15 18:44 ` Stephen Hemminger
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).