linux-kernel - Re: [Intel-wired-lan] [PATCH iwl-next 2/3] i40e: Add other helpers to check version of running firmware and AQ API

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Date:   Tue, 24 Oct 2023 15:01:03 +0200
From:   Ivan Vecera <ivecera@...hat.com>
To:     Wojciech Drewek <wojciech.drewek@...el.com>, netdev@...r.kernel.org
Cc:     intel-wired-lan@...ts.osuosl.org,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        linux-kernel@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [Intel-wired-lan] [PATCH iwl-next 2/3] i40e: Add other helpers to
 check version of running firmware and AQ API



On 24. 10. 23 12:24, Wojciech Drewek wrote:
> On 23.10.2023 18:29, Ivan Vecera wrote:
>> Add another helper functions that will be used by subsequent
>> patch to refactor existing open-coded checks whether the version
>> of running firmware and AdminQ API is recent enough to provide
>> certain capabilities.
>>
>> Signed-off-by: Ivan Vecera<ivecera@...hat.com>
>> ---
>>   drivers/net/ethernet/intel/i40e/i40e_type.h | 54 +++++++++++++++++++++
>>   1 file changed, 54 insertions(+)
>>
>> diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
>> index 050d479aeed3..bb62c14aa3d4 100644
>> --- a/drivers/net/ethernet/intel/i40e/i40e_type.h
>> +++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
>> @@ -608,6 +608,60 @@ static inline bool i40e_is_aq_api_ver_ge(struct i40e_hw *hw, u16 maj, u16 min)
>>   		(hw->aq.api_maj_ver == maj && hw->aq.api_min_ver >= min));
>>   }
>>   
>> +/**
>> + * i40e_is_aq_api_ver_lt
>> + * @hw: pointer to i40e_hw structure
>> + * @maj: API major value to compare
>> + * @min: API minor value to compare
>> + *
>> + * Assert whether current HW API version is less than provided.
>> + **/
>> +static inline bool i40e_is_aq_api_ver_lt(struct i40e_hw *hw, u16 maj, u16 min)
>> +{
>> +	return !i40e_is_aq_api_ver_ge(hw, maj, min);
>> +}
> It feels a bit off to have those helpers in i40e_type.h.
> We don't have i40e_common.h though so I'd move them to i40e_prototype.h or i40e.h.
> Same comment regarding 1st patch (I know I gave it my tag but I spotted the issue
> while reading the 2nd patch).

I'm sorry I already submitted v2 and helpers are present i40e_type.h.
I would submit v3 but there is also i40e_is_vf() inline function already 
present in i40e_type. Would you be OK with a follow-up that would move 
all these inlines into i40e_prototype.h?

Btw i40e.h is not a good idea as this would bring a dependency on i40e.h 
into i40e_adminq.c, i40e_common.c and i40e_dcb.c.

Regards,
Ivan