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From: William Tu <witu@nvidia.com>
To: <netdev@vger.kernel.org>
Cc: <jiri@nvidia.com>, <bodong@nvidia.com>, William Tu <witu@nvidia.com>
Subject: [PATCH net] devlink: Fix length of eswitch inline-mode
Date: Sun, 10 Mar 2024 18:45:47 +0200	[thread overview]
Message-ID: <20240310164547.35219-1-witu@nvidia.com> (raw)

Set eswitch inline-mode to be u8, not u16. Otherwise, errors below

$ devlink dev eswitch set pci/0000:08:00.0 mode switchdev \
  inline-mode network
    Error: Attribute failed policy validation.
    kernel answers: Numerical result out of rang
    netlink: 'devlink': attribute type 26 has an invalid length.

Fixes: f2f9dd164db0 ("netlink: specs: devlink: add the remaining command to generate complete split_ops")
Signed-off-by: William Tu <witu@nvidia.com>
---
Or we can fix the iproute2 to use u16?
---
 Documentation/netlink/specs/devlink.yaml | 2 +-
 net/devlink/netlink_gen.c                | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/netlink/specs/devlink.yaml b/Documentation/netlink/specs/devlink.yaml
index cf6eaa0da821..09fbb4c03fc8 100644
--- a/Documentation/netlink/specs/devlink.yaml
+++ b/Documentation/netlink/specs/devlink.yaml
@@ -290,7 +290,7 @@ attribute-sets:
         enum: eswitch-mode
       -
         name: eswitch-inline-mode
-        type: u16
+        type: u8
         enum: eswitch-inline-mode
       -
         name: dpipe-tables
diff --git a/net/devlink/netlink_gen.c b/net/devlink/netlink_gen.c
index c81cf2dd154f..f9786d51f68f 100644
--- a/net/devlink/netlink_gen.c
+++ b/net/devlink/netlink_gen.c
@@ -198,7 +198,7 @@ static const struct nla_policy devlink_eswitch_set_nl_policy[DEVLINK_ATTR_ESWITC
 	[DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING, },
 	[DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING, },
 	[DEVLINK_ATTR_ESWITCH_MODE] = NLA_POLICY_MAX(NLA_U16, 1),
-	[DEVLINK_ATTR_ESWITCH_INLINE_MODE] = NLA_POLICY_MAX(NLA_U16, 3),
+	[DEVLINK_ATTR_ESWITCH_INLINE_MODE] = NLA_POLICY_MAX(NLA_U8, 3),
 	[DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = NLA_POLICY_MAX(NLA_U8, 1),
 };
 
-- 
2.38.1


             reply	other threads:[~2024-03-10 16:46 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-10 16:45 William Tu [this message]
2024-03-11  8:34 ` [PATCH net] devlink: Fix length of eswitch inline-mode Jiri Pirko
2024-03-11  9:19 ` Simon Horman
2024-03-11 23:00 ` patchwork-bot+netdevbpf

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