2023-05-04 13:40:15

by Oleksandr Natalenko

Subject: [PATCH] vfio/pci: demote hiding ecap messages to debug level

Seeing a burst of messages like this:

vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
vfio-pci 0000:98:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
vfio-pci 0000:b1:00.1: vfio_ecap_init: hiding ecap 0x25@0x200

is of little to no value for an ordinary user.

Hence, use pci_dbg() instead of pci_info().

Signed-off-by: Oleksandr Natalenko <[email protected]>
---
drivers/vfio/pci/vfio_pci_config.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
index 948cdd464f4e..dd8dda14e701 100644
--- a/drivers/vfio/pci/vfio_pci_config.c
+++ b/drivers/vfio/pci/vfio_pci_config.c
@@ -1643,7 +1643,7 @@ static int vfio_ecap_init(struct vfio_pci_core_device *vdev)
}

if (!len) {
- pci_info(pdev, "%s: hiding ecap %#x@%#x\n",
+ pci_dbg(pdev, "%s: hiding ecap %#x@%#x\n",
__func__, ecap, epos);

/* If not the first in the chain, we can skip over it */
--
2.40.1

2023-05-04 15:09:50

by Cédric Le Goater

Subject: Re: [PATCH] vfio/pci: demote hiding ecap messages to debug level

On 5/4/23 15:16, Oleksandr Natalenko wrote:
> Seeing a burst of messages like this:
>
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> vfio-pci 0000:98:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> vfio-pci 0000:b1:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
>
> is of little to no value for an ordinary user.
>
> Hence, use pci_dbg() instead of pci_info().
>
> Signed-off-by: Oleksandr Natalenko <[email protected]>


Acked-by: Cédric Le Goater <[email protected]>

Thanks,

C.

> ---
> drivers/vfio/pci/vfio_pci_config.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
> index 948cdd464f4e..dd8dda14e701 100644
> --- a/drivers/vfio/pci/vfio_pci_config.c
> +++ b/drivers/vfio/pci/vfio_pci_config.c
> @@ -1643,7 +1643,7 @@ static int vfio_ecap_init(struct vfio_pci_core_device *vdev)
> }
>
> if (!len) {
> - pci_info(pdev, "%s: hiding ecap %#x@%#x\n",
> + pci_dbg(pdev, "%s: hiding ecap %#x@%#x\n",
> __func__, ecap, epos);
>
> /* If not the first in the chain, we can skip over it */

2023-05-04 23:51:42

by Alex Williamson

Subject: Re: [PATCH] vfio/pci: demote hiding ecap messages to debug level

On Thu, 4 May 2023 15:16:54 +0200
Oleksandr Natalenko <[email protected]> wrote:

> Seeing a burst of messages like this:
>
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> vfio-pci 0000:98:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> vfio-pci 0000:b1:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
>
> is of little to no value for an ordinary user.
>
> Hence, use pci_dbg() instead of pci_info().
>
> Signed-off-by: Oleksandr Natalenko <[email protected]>
> ---
> drivers/vfio/pci/vfio_pci_config.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
> index 948cdd464f4e..dd8dda14e701 100644
> --- a/drivers/vfio/pci/vfio_pci_config.c
> +++ b/drivers/vfio/pci/vfio_pci_config.c
> @@ -1643,7 +1643,7 @@ static int vfio_ecap_init(struct vfio_pci_core_device *vdev)
> }
>
> if (!len) {
> - pci_info(pdev, "%s: hiding ecap %#x@%#x\n",
> + pci_dbg(pdev, "%s: hiding ecap %#x@%#x\n",
> __func__, ecap, epos);
>
> /* If not the first in the chain, we can skip over it */

Looks fine to me, though I might adjust that next line to keep the
previous alignment. In general this has certainly caused more
confusion than insightful information, so demoting it to debug is a
good idea. Thanks,

Alex

2023-05-05 10:13:30

by Oleksandr Natalenko

Subject: Re: [PATCH] vfio/pci: demote hiding ecap messages to debug level

Hello.

On pátek 5. května 2023 1:01:11 CEST Alex Williamson wrote:
> On Thu, 4 May 2023 15:16:54 +0200
> Oleksandr Natalenko <[email protected]> wrote:
>
> > Seeing a burst of messages like this:
> >
> > vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> > vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> > vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> > vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> > vfio-pci 0000:98:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
> > vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> > vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> > vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> > vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> > vfio-pci 0000:b1:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
> >
> > is of little to no value for an ordinary user.
> >
> > Hence, use pci_dbg() instead of pci_info().
> >
> > Signed-off-by: Oleksandr Natalenko <[email protected]>
> > ---
> > drivers/vfio/pci/vfio_pci_config.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
> > index 948cdd464f4e..dd8dda14e701 100644
> > --- a/drivers/vfio/pci/vfio_pci_config.c
> > +++ b/drivers/vfio/pci/vfio_pci_config.c
> > @@ -1643,7 +1643,7 @@ static int vfio_ecap_init(struct vfio_pci_core_device *vdev)
> > }
> >
> > if (!len) {
> > - pci_info(pdev, "%s: hiding ecap %#x@%#x\n",
> > + pci_dbg(pdev, "%s: hiding ecap %#x@%#x\n",
> > __func__, ecap, epos);
> >
> > /* If not the first in the chain, we can skip over it */
>
> Looks fine to me, though I might adjust that next line to keep the
> previous alignment.

Sure, but if you want me to send v2 with this, please let me know.

Thanks.

> In general this has certainly caused more
> confusion than insightful information, so demoting it to debug is a
> good idea. Thanks,
>
> Alex
>
>


--
Oleksandr Natalenko (post-factum)

2023-05-20 08:06:12

by YangHang Liu

Subject: Re: [PATCH] vfio/pci: demote hiding ecap messages to debug level

Tested-by: YangHang Liu <[email protected]>

On 5/4/2023 9:16 PM, Oleksandr Natalenko wrote:
> Seeing a burst of messages like this:
>
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> vfio-pci 0000:98:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> vfio-pci 0000:b1:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
>
> is of little to no value for an ordinary user.
>
> Hence, use pci_dbg() instead of pci_info().
>
> Signed-off-by: Oleksandr Natalenko <[email protected]>
> ---
> drivers/vfio/pci/vfio_pci_config.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
> index 948cdd464f4e..dd8dda14e701 100644
> --- a/drivers/vfio/pci/vfio_pci_config.c
> +++ b/drivers/vfio/pci/vfio_pci_config.c
> @@ -1643,7 +1643,7 @@ static int vfio_ecap_init(struct vfio_pci_core_device *vdev)
> }
>
> if (!len) {
> - pci_info(pdev, "%s: hiding ecap %#x@%#x\n",
> + pci_dbg(pdev, "%s: hiding ecap %#x@%#x\n",
> __func__, ecap, epos);
>
> /* If not the first in the chain, we can skip over it */

2023-05-23 22:55:47

by Alex Williamson

Subject: Re: [PATCH] vfio/pci: demote hiding ecap messages to debug level

On Thu, 4 May 2023 15:16:54 +0200
Oleksandr Natalenko <[email protected]> wrote:

> Seeing a burst of messages like this:
>
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> vfio-pci 0000:98:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> vfio-pci 0000:98:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x19@0x1d0
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x25@0x200
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x26@0x210
> vfio-pci 0000:b1:00.0: vfio_ecap_init: hiding ecap 0x27@0x250
> vfio-pci 0000:b1:00.1: vfio_ecap_init: hiding ecap 0x25@0x200
>
> is of little to no value for an ordinary user.
>
> Hence, use pci_dbg() instead of pci_info().
>
> Signed-off-by: Oleksandr Natalenko <[email protected]>
> ---
> drivers/vfio/pci/vfio_pci_config.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
> index 948cdd464f4e..dd8dda14e701 100644
> --- a/drivers/vfio/pci/vfio_pci_config.c
> +++ b/drivers/vfio/pci/vfio_pci_config.c
> @@ -1643,7 +1643,7 @@ static int vfio_ecap_init(struct vfio_pci_core_device *vdev)
> }
>
> if (!len) {
> - pci_info(pdev, "%s: hiding ecap %#x@%#x\n",
> + pci_dbg(pdev, "%s: hiding ecap %#x@%#x\n",
> __func__, ecap, epos);
>
> /* If not the first in the chain, we can skip over it */

Applied to vfio next branch for v6.5. Thanks!

Alex