netdev - Re: [PATCH net-next v3 08/10] net: ti: icssg-prueth: Add functions to configure SR1.0 packet classifier

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Message-ID: <45e85d07-4cbc-47e7-a758-e4d666a3c3a9@siemens.com>
Date: Tue, 27 Feb 2024 12:11:06 +0000
From: Diogo Ivo <diogo.ivo@...mens.com>
To: Roger Quadros <rogerq@...nel.org>, danishanwar@...com,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, andrew@...n.ch, dan.carpenter@...aro.org,
 linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org
Cc: jan.kiszka@...mens.com, diogo.ivo@...mens.com
Subject: Re: [PATCH net-next v3 08/10] net: ti: icssg-prueth: Add functions to
 configure SR1.0 packet classifier

On 2/26/24 17:26, Roger Quadros wrote:
> 
> 
> On 21/02/2024 17:24, Diogo Ivo wrote:
>> Add the functions to configure the SR1.0 packet classifier.
>>
>> Based on the work of Roger Quadros in TI's 5.10 SDK [1].
>>
>> [1]: https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.ti.com%2Fcgit%2Fti-linux-kernel%2Fti-linux-kernel%2Ftree%2F%3Fh%3Dti-linux-5.10.y&data=05%7C02%7Cdiogo.ivo%40siemens.com%7C5db0233cf1944b0b012808dc36f0214c%7C38ae3bcd95794fd4addab42e1495d55a%7C1%7C0%7C638445652187413851%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=u4p0vZ6LCPScUuYuwCB2iJFm6uoz%2BDMesVWnTgwg1hs%3D&reserved=0
>>
>> Co-developed-by: Jan Kiszka <jan.kiszka@...mens.com>
>> Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
>> Signed-off-by: Diogo Ivo <diogo.ivo@...mens.com>
>> ---
>> Changes in v3:
>>   - Replace local variables in icssg_class_add_mcast_sr1()
>>     with eth_reserved_addr_base and eth_ipv4_mcast_addr_base
>>

...

>> diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
>> index e6eac01f9f99..7d9db9683e18 100644
>> --- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
>> +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
>> @@ -437,7 +437,7 @@ static int emac_ndo_open(struct net_device *ndev)
>>   	icssg_class_set_mac_addr(prueth->miig_rt, slice, emac->mac_addr);
>>   	icssg_ft1_set_mac_addr(prueth->miig_rt, slice, emac->mac_addr);
>>   
>> -	icssg_class_default(prueth->miig_rt, slice, 0);
>> +	icssg_class_default(prueth->miig_rt, slice, 0, false);
> 
> Should you be passing emac->is_sr1 instead of false?

Given that this is the SR2.0 driver we know that bool is_sr1 will always
be false, is there an advantage in passing emac->is_sr1 rather than
false directly?

Best regards,
Diogo