From: David Ahern <dsahern@gmail.com>
To: Jiri Pirko <jiri@resnulli.us>, Ido Schimmel <idosch@idosch.org>
Cc: netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org,
roopa@nvidia.com, mlxsw@nvidia.com,
Ido Schimmel <idosch@nvidia.com>
Subject: Re: [RFC PATCH net-next 03/22] nexthop: Only emit a notification when nexthop is actually deleted
Date: Tue, 8 Sep 2020 08:42:08 -0600 [thread overview]
Message-ID: <00d926ce-7ac9-fecd-5edc-cb30ad31828e@gmail.com> (raw)
In-Reply-To: <20200908143959.GP2997@nanopsycho.orion>
On 9/8/20 8:39 AM, Jiri Pirko wrote:
> Tue, Sep 08, 2020 at 11:10:18AM CEST, idosch@idosch.org wrote:
>> From: Ido Schimmel <idosch@nvidia.com>
>>
>> Currently, the delete notification is emitted from the error path of
>> nexthop_add() and replace_nexthop(), which can be confusing to listeners
>> as they are not familiar with the nexthop.
>>
>> Instead, only emit the notification when the nexthop is actually
>> deleted. The following sub-cases are covered:
>
> Well, in theory, this might break some very odd app that is adding a
> route and checking the errors using this notification. My opinion is to
> allow this breakage to happen, but I'm usually too benevolent :)
>
That would be a very twisted app.
No other notifications go out on failure to add / replace and nexthops
should be consistent.
next prev parent reply other threads:[~2020-09-08 17:25 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-08 9:10 [RFC PATCH net-next 00/22] nexthop: Add support for nexthop objects offload Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 01/22] nexthop: Remove unused function declaration from header file Ido Schimmel
2020-09-08 14:29 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 02/22] nexthop: Convert to blocking notification chain Ido Schimmel
2020-09-08 14:34 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 03/22] nexthop: Only emit a notification when nexthop is actually deleted Ido Schimmel
2020-09-08 14:34 ` David Ahern
2020-09-08 14:39 ` Jiri Pirko
2020-09-08 14:42 ` David Ahern [this message]
2020-09-11 14:40 ` Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 04/22] selftests: fib_nexthops: Test cleanup of FDB entries following nexthop deletion Ido Schimmel
2020-09-08 14:35 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 05/22] nexthop: Add nexthop notification data structures Ido Schimmel
2020-09-08 14:43 ` David Ahern
2020-09-11 14:50 ` Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 06/22] nexthop: Pass extack to nexthop notifier Ido Schimmel
2020-09-08 14:44 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 07/22] nexthop: Prepare new notification info Ido Schimmel
2020-09-08 14:55 ` David Ahern
2020-09-11 15:01 ` Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 08/22] nexthop: vxlan: Convert to " Ido Schimmel
2020-09-08 14:58 ` David Ahern
2020-09-11 15:05 ` Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 09/22] rtnetlink: Add RTNH_F_TRAP flag Ido Schimmel
2020-09-08 15:02 ` David Ahern
2020-09-11 15:26 ` Ido Schimmel
2020-09-11 15:54 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 10/22] nexthop: Allow setting "offload" and "trap" indications on nexthops Ido Schimmel
2020-09-08 15:14 ` David Ahern
2020-09-11 15:29 ` Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 11/22] nexthop: Emit a notification when a nexthop is added Ido Schimmel
2020-09-08 15:21 ` David Ahern
2020-09-11 16:20 ` Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 12/22] nexthop: Emit a notification when a nexthop group is replaced Ido Schimmel
2020-09-08 15:22 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 13/22] nexthop: Emit a notification when a single nexthop " Ido Schimmel
2020-09-08 15:25 ` David Ahern
2020-09-11 16:24 ` Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 14/22] nexthop: Emit a notification when a nexthop group is modified Ido Schimmel
2020-09-08 15:29 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 15/22] nexthop: Emit a notification when a nexthop group is reduced Ido Schimmel
2020-09-08 15:33 ` David Ahern
2020-09-11 16:29 ` Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 16/22] nexthop: Pass extack to register_nexthop_notifier() Ido Schimmel
2020-09-08 15:34 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 17/22] nexthop: Replay nexthops when registering a notifier Ido Schimmel
2020-09-08 15:37 ` David Ahern
2020-09-11 16:40 ` Ido Schimmel
2020-09-11 16:47 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 18/22] nexthop: Remove in-kernel route notifications when nexthop changes Ido Schimmel
2020-09-08 15:38 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 19/22] netdevsim: Add devlink resource for nexthops Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 20/22] netdevsim: Add dummy implementation for nexthop offload Ido Schimmel
2020-09-08 9:10 ` [RFC PATCH net-next 21/22] netdevsim: Allow programming routes with nexthop objects Ido Schimmel
2020-09-08 15:40 ` David Ahern
2020-09-08 9:10 ` [RFC PATCH net-next 22/22] selftests: netdevsim: Add test for nexthop offload API Ido Schimmel
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