netdev - Re: [net 09/15] net/mlx5e: Forbid devlink reload if IPSec rules are offloaded

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Message-ID: <ZWXW5o9XIb0RHpkb@nanopsycho>
Date: Tue, 28 Nov 2023 13:02:46 +0100
From: Jiri Pirko <jiri@...nulli.us>
To: Leon Romanovsky <leon@...nel.org>
Cc: Saeed Mahameed <saeed@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
	Tariq Toukan <tariqt@...dia.com>, Jianbo Liu <jianbol@...dia.com>
Subject: Re: [net 09/15] net/mlx5e: Forbid devlink reload if IPSec rules are
 offloaded

Wed, Nov 22, 2023 at 12:28:32PM CET, leon@...nel.org wrote:
>On Wed, Nov 22, 2023 at 10:50:37AM +0100, Jiri Pirko wrote:
>> Wed, Nov 22, 2023 at 10:35:46AM CET, leon@...nel.org wrote:
>> >On Wed, Nov 22, 2023 at 10:13:45AM +0100, Jiri Pirko wrote:
>> >> Wed, Nov 22, 2023 at 02:47:58AM CET, saeed@...nel.org wrote:
>> >> >From: Jianbo Liu <jianbol@...dia.com>

[...]


>while we are in eswitch. It is skipped in lines 1556-1558:
>
>  1548 static void
>  1549 mlx5e_vport_rep_unload(struct mlx5_eswitch_rep *rep)
>  1550 {
>  1551         struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
>  1552         struct net_device *netdev = rpriv->netdev;
>  1553         struct mlx5e_priv *priv = netdev_priv(netdev);
>  1554         void *ppriv = priv->ppriv;
>  1555
>  1556         if (rep->vport == MLX5_VPORT_UPLINK) {
>  1557                 mlx5e_vport_uplink_rep_unload(rpriv);
>  1558                 goto free_ppriv;
>  1559         }

Uplink netdev is created and destroyed by a different code:
mlx5e_probe()
mlx5e_remove()

According to my testing. The uplink netdev is properly removed and
re-added during reload-reinit. What am I missing?



>  1560
>  1561         unregister_netdev(netdev);
>  1562         mlx5e_rep_vnic_reporter_destroy(priv);
>  1563         mlx5e_detach_netdev(priv);
>  1564         priv->profile->cleanup(priv);
>  1565         mlx5e_destroy_netdev(priv);
>  1566 free_ppriv:
>  1567         kvfree(ppriv); /* mlx5e_rep_priv */
>  1568 }
>

[...]