netdev - Re: [PATCH net 02/15] ibmvnic: process HMC disable command

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Message-ID: <20201123114328.00c0b933@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Mon, 23 Nov 2020 11:43:28 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     drt <drt@...ux.vnet.ibm.com>
Cc:     Lijun Pan <ljp@...ux.ibm.com>, netdev@...r.kernel.org,
        sukadev@...ux.ibm.com, drt@...ux.ibm.com
Subject: Re: [PATCH net 02/15] ibmvnic: process HMC disable command

On Sun, 22 Nov 2020 07:12:38 -0800 drt wrote:
> On 2020-11-21 15:36, Jakub Kicinski wrote:
> > On Fri, 20 Nov 2020 16:40:36 -0600 Lijun Pan wrote:  
> >> From: Dany Madden <drt@...ux.ibm.com>
> >> 
> >> Currently ibmvnic does not support the disable vnic command from the
> >> Hardware Management Console. This patch enables ibmvnic to process
> >> CRQ message 0x07, disable vnic adapter.  
> > 
> > What user-visible problem does this one solve?  
> This allows HMC to disconnect a Linux client from the network if the 
> vNIC adapter is misbehaving and/or sending malicious traffic. The effect 
> is the same as when a sysadmin sets a link down (ibmvnic_close()) on the 
> Linux client. This patch extends this ability to the HMC.

Okay, sounds to me like net-next material, then.

IIUC we don't need to fix this ASAP and backport to stable.