On Sun, Dec 10, 2023 at 12:47:25PM +0100, Jiri Pirko wrote:

Fri, Dec 08, 2023 at 07:30:05PM CET, swarupkotikalapudi@gmail.com wrote:

quoted

On Wed, Dec 06, 2023 at 08:06:11AM -0800, Jakub Kicinski wrote:

quoted

On Wed, 6 Dec 2023 08:51:54 +0100 Jiri Pirko wrote:

quoted

My "suggested-by" is probably fine as I suggested Swarup to make the patch :)

Ah, I didn't realize, sorry :) Just mine needs to go then.

Hi Jiri,

Please find answer for some quesion from you.

1. I removed the Fixes tag.

2. I removed Jakub's name from Suggested-by tag.

3. I added new line as suggested.

  value: ## or number, is used only if there is a gap or
  missing attribute just above of any attribute which is not yet filled.    

4. dl-attr-stats has a value 0 as shown below for this reason:
   name: dl-attr-stats
   name-prefix: devlink-attr-
   attributes:
     - name: stats-rx-packets
       type: u64
       value: 0 <-- 0 is added here due to below mentioned reason
                    but mainly to match order of stats unnamed enum declared in include/uapi/linux/devlink.h

So, by default, it starts with 1?

Hi Jiri,

Yes it seems by default it starts with 1
e.g. below is test result when value is not added

git diff Documentation/netlink/specs/devlink.yaml

diff --git a/Documentation/netlink/specs/devlink.yaml b/Documentation/netlink/specs/devlink.yaml
index c3a438197964..9d0e684da574 100644
--- a/Documentation/netlink/specs/devlink.yaml
+++ b/Documentation/netlink/specs/devlink.yaml

@@ -1191,7 +1191,6 @@ attribute-sets:
     attributes:
       - name: stats-rx-packets
         type: u64
-        value: 0
       -
         name: stats-rx-bytes
         type: u64

sudo ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/devlink.yaml --do trap-get --json '{"bus-name": "netdevsim", "dev-name": "netdevsim1", "trap-name": "ttl_value_is_too_small"}' --process-unknown
{'bus-name': 'netdevsim',
 'dev-name': 'netdevsim1',
 'stats': {'UnknownAttr(0)': b'iW*\x00\x00\x00\x00\x00',
           'stats-rx-bytes': 62,
           'stats-rx-packets': 394034238},
 'trap-action': 'trap',
 'trap-generic': True,
 'trap-group-name': 'l3_exceptions',
 'trap-metadata': {'trap-metadata-type-in-port': True},
 'trap-name': 'ttl_value_is_too_small',
 'trap-type': 'exception'}

Thanks,
Swarup


 

quoted

     -
       name: stats-rx-bytes
       type: u64
     -
       name: stats-rx-dropped
       type: u64