netdev - [PATCH net-next 07/13] tools: ynl: support multi-attr

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Date:   Fri, 27 Jan 2023 20:32:11 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, edumazet@...gle.com, pabeni@...hat.com,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next 07/13] tools: ynl: support multi-attr

Ethtool uses mutli-attr, add the support to YNL.

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 tools/net/ynl/lib/ynl.py | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/tools/net/ynl/lib/ynl.py b/tools/net/ynl/lib/ynl.py
index 690065003935..c16326495cb7 100644
--- a/tools/net/ynl/lib/ynl.py
+++ b/tools/net/ynl/lib/ynl.py
@@ -373,22 +373,29 @@ genl_family_name_to_id = None
             attr_spec = attr_space.attrs_by_val[attr.type]
             if attr_spec["type"] == 'nest':
                 subdict = self._decode(NlAttrs(attr.raw), attr_spec['nested-attributes'])
-                rsp[attr_spec['name']] = subdict
+                decoded = subdict
             elif attr_spec['type'] == 'u8':
-                rsp[attr_spec['name']] = attr.as_u8()
+                decoded = attr.as_u8()
             elif attr_spec['type'] == 'u32':
-                rsp[attr_spec['name']] = attr.as_u32()
+                decoded = attr.as_u32()
             elif attr_spec['type'] == 'u64':
-                rsp[attr_spec['name']] = attr.as_u64()
+                decoded = attr.as_u64()
             elif attr_spec["type"] == 'string':
-                rsp[attr_spec['name']] = attr.as_strz()
+                decoded = attr.as_strz()
             elif attr_spec["type"] == 'binary':
-                rsp[attr_spec['name']] = attr.as_bin()
+                decoded = attr.as_bin()
             elif attr_spec["type"] == 'flag':
-                rsp[attr_spec['name']] = True
+                decoded = True
             else:
                 raise Exception(f'Unknown {attr.type} {attr_spec["name"]} {attr_spec["type"]}')
 
+            if not attr_spec.is_multi:
+                rsp[attr_spec['name']] = decoded
+            elif attr_spec.name in rsp:
+                rsp[attr_spec.name].append(decoded)
+            else:
+                rsp[attr_spec.name] = [decoded]
+
             if 'enum' in attr_spec:
                 self._decode_enum(rsp, attr_spec)
         return rsp
-- 
2.39.1