From: David Marchand <david.marchand@redhat.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: dev <dev@dpdk.org>, "Xia, Chenbo" <chenbo.xia@intel.com>
Subject: Re: [PATCH 4/4] vhost: prefix logs with context
Date: Fri, 1 Jul 2022 09:13:17 +0200 [thread overview]
Message-ID: <CAJFAV8xTnhFpnbqZrgBgLfnNQQqCO-J==hJObgT1UhCkOp7-EA@mail.gmail.com> (raw)
In-Reply-To: <9bf2e67e-4234-9f5c-5eaf-03be6c2a93e0@redhat.com>
On Thu, Jun 30, 2022 at 6:13 PM Maxime Coquelin
<maxime.coquelin@redhat.com> wrote:
> On 6/27/22 11:27, David Marchand wrote:
> > We recently improved the log messages in the vhost library, adding some
> > context that helps filtering for a given vhost-user device.
> > However, some parts of the code were missed, and some later code changes
> > broke this new convention (fixes were sent previous to this patch).
> >
> > Change the VHOST_LOG_CONFIG/DATA helpers and always ask for a string
> > used as context. This should help limit regressions on this topic.
> >
> > Most of the time, the context is the vhost-user device socket path.
> > For the rest when a vhost-user device can not be related, generic
> > names were chosen:
> > - "dma", for vhost-user async DMA operations,
> > - "device", for vhost-user device creation and lookup,
> > - "thread", for threads management,
> >
> > Signed-off-by: David Marchand <david.marchand@redhat.com>
> > ---
> > lib/vhost/iotlb.c | 30 +-
> > lib/vhost/socket.c | 129 ++++-----
> > lib/vhost/vdpa.c | 4 +-
> > lib/vhost/vhost.c | 144 ++++-----
> > lib/vhost/vhost.h | 20 +-
> > lib/vhost/vhost_user.c | 642 +++++++++++++++++++++--------------------
> > lib/vhost/virtio_net.c | 258 +++++++++--------
> > 7 files changed, 634 insertions(+), 593 deletions(-)
> >
>
> > diff --git a/lib/vhost/vhost.h b/lib/vhost/vhost.h
> > index 810bc71c9d..310aaf88ff 100644
> > --- a/lib/vhost/vhost.h
> > +++ b/lib/vhost/vhost.h
> > @@ -625,14 +625,14 @@ vhost_log_write_iova(struct virtio_net *dev, struct vhost_virtqueue *vq,
> > extern int vhost_config_log_level;
> > extern int vhost_data_log_level;
> >
> > -#define VHOST_LOG_CONFIG(level, fmt, args...) \
> > +#define VHOST_LOG_CONFIG(prefix, level, fmt, args...) \
> > rte_log(RTE_LOG_ ## level, vhost_config_log_level, \
> > - "VHOST_CONFIG: " fmt, ##args)
> > + "VHOST_CONFIG: (%s): " fmt, prefix, ##args)
> >
> > -#define VHOST_LOG_DATA(level, fmt, args...) \
> > +#define VHOST_LOG_DATA(prefix, level, fmt, args...) \
> > (void)((RTE_LOG_ ## level <= RTE_LOG_DP_LEVEL) ? \
> > rte_log(RTE_LOG_ ## level, vhost_data_log_level, \
> > - "VHOST_DATA : " fmt, ##args) : \
> > + "VHOST_DATA: (%s):" fmt, prefix, ##args) : \
> > 0)
>
> As discussed off-list, adding the function will break OVS tests once
> again. I propose to pick the first 3 patches for now.
The issue with OVS tests is that they match the log message content,
and this current patch changes the format.
For example, before we have:
VHOST_CONFIG: (vhost0.sock) vhost-user server: socket created, fd: 57
VHOST_CONFIG: (vhost0.sock) binding succeeded
After:
VHOST_CONFIG: (vhost0.sock): vhost-user server: socket created, fd: 56
VHOST_CONFIG: (vhost0.sock): binding succeeded
I can respin, removing the extra ':' in VHOST_* macros.
WDYT?
--
David Marchand
next prev parent reply other threads:[~2022-07-01 7:13 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-27 9:27 [PATCH 0/4] Vhost logs fixes and improvement David Marchand
2022-06-27 9:27 ` [PATCH 1/4] vhost: add some trailing newline in log messages David Marchand
2022-06-29 13:28 ` Xia, Chenbo
2022-06-27 9:27 ` [PATCH 2/4] vhost: restore device information " David Marchand
2022-06-29 13:34 ` Xia, Chenbo
2022-06-29 13:45 ` David Marchand
2022-06-29 13:49 ` Xia, Chenbo
2022-06-27 9:27 ` [PATCH 3/4] vhost: improve some datapath " David Marchand
2022-06-30 16:07 ` Maxime Coquelin
2022-06-27 9:27 ` [PATCH 4/4] vhost: prefix logs with context David Marchand
2022-06-30 16:13 ` Maxime Coquelin
2022-07-01 7:13 ` David Marchand [this message]
2022-07-01 7:56 ` Maxime Coquelin
2022-07-01 7:55 ` [PATCH v2 0/4] Vhost logs fixes and improvement David Marchand
2022-07-01 7:55 ` [PATCH v2 1/4] vhost: add some trailing newline in log messages David Marchand
2022-07-01 7:55 ` [PATCH v2 2/4] vhost: restore device information " David Marchand
2022-07-01 7:55 ` [PATCH v2 3/4] vhost: improve some datapath " David Marchand
2022-07-01 7:55 ` [PATCH v2 4/4] vhost: prefix logs with context David Marchand
2022-07-01 8:00 ` Maxime Coquelin
2022-07-01 13:20 ` [PATCH v3] " David Marchand
2022-07-01 14:00 ` Maxime Coquelin
2022-07-01 14:00 ` [PATCH v2 0/4] Vhost logs fixes and improvement Maxime Coquelin
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