netdev - Re: [PATCH] net: hsr: Disable promiscuous mode in offload mode

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Date: Wed, 14 Jun 2023 15:35:09 +0530
From: Ravi Gunasekaran <r-gunasekaran@...com>
To: Paolo Abeni <pabeni@...hat.com>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <bigeasy@...utronix.de>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <rogerq@...nel.org>
Subject: Re: [PATCH] net: hsr: Disable promiscuous mode in offload mode



On 6/14/23 3:12 PM, Paolo Abeni wrote:
> On Mon, 2023-06-12 at 15:09 +0530, Ravi Gunasekaran wrote:
>> When port-to-port forwarding for interfaces in HSR node is enabled,
>> disable promiscuous mode since L2 frame forward happens at the
>> offloaded hardware.
>>
>> Signed-off-by: Ravi Gunasekaran <r-gunasekaran@...com>
>> ---
>>  net/hsr/hsr_device.c |  5 +++++
>>  net/hsr/hsr_main.h   |  1 +
>>  net/hsr/hsr_slave.c  | 15 +++++++++++----
>>  3 files changed, 17 insertions(+), 4 deletions(-)
>>
>> diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
>> index 5a236aae2366..306f942c3b28 100644
>> --- a/net/hsr/hsr_device.c
>> +++ b/net/hsr/hsr_device.c
>> @@ -531,6 +531,11 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
>>  	if (res)
>>  		goto err_add_master;
>>  
>> +	/* HSR forwarding offload supported in lower device? */
>> +	if ((slave[0]->features & NETIF_F_HW_HSR_FWD) &&
>> +	    (slave[1]->features & NETIF_F_HW_HSR_FWD))
>> +		hsr->fwd_offloaded = true;
>> +
>>  	res = register_netdevice(hsr_dev);
>>  	if (res)
>>  		goto err_unregister;
>> diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h
>> index 5584c80a5c79..0225fabbe6d1 100644
>> --- a/net/hsr/hsr_main.h
>> +++ b/net/hsr/hsr_main.h
>> @@ -195,6 +195,7 @@ struct hsr_priv {
>>  	struct hsr_self_node	__rcu *self_node;	/* MACs of slaves */
>>  	struct timer_list	announce_timer;	/* Supervision frame dispatch */
>>  	struct timer_list	prune_timer;
>> +	unsigned int            fwd_offloaded : 1; /* Forwarding offloaded to HW */
> 
> Please use plain 'bool' instead.
> 
> Also there is an hole in 'struct hsr_priv' just after 'net_id', you
> could consider moving this new field there.
> 

Sure. I will use "bool" and insert it after "net_id" and send out v2

> 
> Thanks!
> 
> Paolo
> 

-- 
Regards,
Ravi