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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Message-ID: <2aba9a2d-9dfd-49f2-bfec-1ff563a5f017@intel.com>
Date:   Tue, 24 Oct 2023 12:24:08 +0200
From:   Wojciech Drewek <wojciech.drewek@...el.com>
To:     Ivan Vecera <ivecera@...hat.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>,
        <dacampbe@...hat.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 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).

> +
> +/**
> + * i40e_is_fw_ver_ge
> + * @hw: pointer to i40e_hw structure
> + * @maj: API major value to compare
> + * @min: API minor value to compare
> + *
> + * Assert whether current firmware version is greater/equal than provided.
> + **/
> +static bool inline i40e_is_fw_ver_ge(struct i40e_hw *hw, u16 maj, u16 min)
> +{
> +        return (hw->aq.fw_maj_ver > maj ||
> +                (hw->aq.fw_maj_ver == maj && hw->aq.fw_min_ver >= min));
> +}
> +
> +/**
> + * i40e_is_fw_ver_lt
> + * @hw: pointer to i40e_hw structure
> + * @maj: API major value to compare
> + * @min: API minor value to compare
> + *
> + * Assert whether current firmware version is less than provided.
> + **/
> +static bool inline i40e_is_fw_ver_lt(struct i40e_hw *hw, u16 maj, u16 min)
> +{
> +	return !i40e_is_fw_ver_ge(hw, maj, min);
> +}
> +
> +/**
> + * i40e_is_fw_ver_eq
> + * @hw: pointer to i40e_hw structure
> + * @maj: API major value to compare
> + * @min: API minor value to compare
> + *
> + * Assert whether current firmware version is equal to provided.
> + **/
> +static bool inline i40e_is_fw_ver_eq(struct i40e_hw *hw, u16 maj, u16 min)
> +{
> +        return (hw->aq.fw_maj_ver > maj ||
> +                (hw->aq.fw_maj_ver == maj && hw->aq.fw_min_ver == min));
> +}
> +
>  struct i40e_driver_version {
>  	u8 major_version;
>  	u8 minor_version;