From: David Marchand <david.marchand@redhat.com>
To: Michael Baum <michaelba@nvidia.com>
Cc: "NBU-Contact-Thomas Monjalon (EXTERNAL)" <thomas@monjalon.net>,
"dev@dpdk.org" <dev@dpdk.org>, Matan Azrad <matan@nvidia.com>,
Raslan Darawsheh <rasland@nvidia.com>,
Slava Ovsiienko <viacheslavo@nvidia.com>,
dpdk stable <stable@dpdk.org>
Subject: Re: [PATCH] net/mlx5: fix FD configuration for Rx interrupt
Date: Mon, 14 Mar 2022 10:31:20 +0100 [thread overview]
Message-ID: <CAJFAV8w8Uw4OkokvFCbkYTE2NT1hKAU5+5tcDY4qAMh29XQWEA@mail.gmail.com> (raw)
In-Reply-To: <DM5PR12MB4661CF87958325562C946ED1CC0B9@DM5PR12MB4661.namprd12.prod.outlook.com>
On Thu, Mar 10, 2022 at 6:04 PM Michael Baum <michaelba@nvidia.com> wrote:
> > > # strace -r -f ./dpdk-dir/v21.11/examples/dpdk-l3fwd-power --lcores
> > > 0@3,1@5 -a 0000:82:00.0 --in-memory -- -p 0x1 -P --config '(0,0,1)'
> > > ...
> > > [pid 534983] 0.000348 epoll_wait(26, [], 1, 10) = 0
> > > [pid 534983] 0.010082 read(24,
> > >
> > > For some reason, there is an event available for fd 18 right away
> > > (which is the issue in the first place).
>
> I don't understand who is FD 18, I cannot see it in your log
I had refreshed the trace before sending, but did not update the mail,
I meant fd 24.
Now, looking from scratch (rather than my one month old mail),
epoll_wait() returning 0 is normal since it's returning on a 10ms
timeout.
The mlx5 rx fd should be left in non blocking mode.
--
David Marchand
next prev parent reply other threads:[~2022-03-14 9:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-10 13:19 Michael Baum
2022-03-10 15:12 ` David Marchand
2022-03-10 16:16 ` Thomas Monjalon
2022-03-10 17:04 ` Michael Baum
2022-03-14 9:31 ` David Marchand [this message]
2022-03-14 10:49 ` Matan Azrad
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