linux-kernel - Re: [PATCH iwl-next 1/2] i40e: Remove VF MAC types

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Message-ID: <8a8f54a8-1a18-4797-a592-b57bc6fc45c1@intel.com>
Date:   Wed, 25 Oct 2023 12:48:37 +0200
From:   Wojciech Drewek <wojciech.drewek@...el.com>
To:     Ivan Vecera <ivecera@...hat.com>, <netdev@...r.kernel.org>
CC:     Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Eric Dumazet" <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        <intel-wired-lan@...ts.osuosl.org>, <linux-kernel@...r.kernel.org>,
        Jacob Keller <jacob.e.keller@...el.com>
Subject: Re: [PATCH iwl-next 1/2] i40e: Remove VF MAC types



On 25.10.2023 12:33, Ivan Vecera wrote:
> The i40e_hw.mac.type cannot to be equal to I40E_MAC_VF or
> I40E_MAC_X722_VF so remove helper i40e_is_vf(), simplify
> i40e_adminq_init_regs() and remove enums for these VF MAC types.
> 
> Signed-off-by: Ivan Vecera <ivecera@...hat.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_adminq.c | 33 ++++++-------------
>  drivers/net/ethernet/intel/i40e/i40e_type.h   |  8 -----
>  2 files changed, 10 insertions(+), 31 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
> index 29fc46abf690..896c43905309 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
> @@ -17,29 +17,16 @@ static void i40e_resume_aq(struct i40e_hw *hw);
>  static void i40e_adminq_init_regs(struct i40e_hw *hw)
>  {
>  	/* set head and tail registers in our local struct */
> -	if (i40e_is_vf(hw)) {
> -		hw->aq.asq.tail = I40E_VF_ATQT1;
> -		hw->aq.asq.head = I40E_VF_ATQH1;
> -		hw->aq.asq.len  = I40E_VF_ATQLEN1;
> -		hw->aq.asq.bal  = I40E_VF_ATQBAL1;
> -		hw->aq.asq.bah  = I40E_VF_ATQBAH1;
> -		hw->aq.arq.tail = I40E_VF_ARQT1;
> -		hw->aq.arq.head = I40E_VF_ARQH1;
> -		hw->aq.arq.len  = I40E_VF_ARQLEN1;
> -		hw->aq.arq.bal  = I40E_VF_ARQBAL1;
> -		hw->aq.arq.bah  = I40E_VF_ARQBAH1;

What about removing those I40E_VF_* defines?
This is their only usage here, right?

> -	} else {
> -		hw->aq.asq.tail = I40E_PF_ATQT;
> -		hw->aq.asq.head = I40E_PF_ATQH;
> -		hw->aq.asq.len  = I40E_PF_ATQLEN;
> -		hw->aq.asq.bal  = I40E_PF_ATQBAL;
> -		hw->aq.asq.bah  = I40E_PF_ATQBAH;
> -		hw->aq.arq.tail = I40E_PF_ARQT;
> -		hw->aq.arq.head = I40E_PF_ARQH;
> -		hw->aq.arq.len  = I40E_PF_ARQLEN;
> -		hw->aq.arq.bal  = I40E_PF_ARQBAL;
> -		hw->aq.arq.bah  = I40E_PF_ARQBAH;
> -	}
> +	hw->aq.asq.tail = I40E_PF_ATQT;
> +	hw->aq.asq.head = I40E_PF_ATQH;
> +	hw->aq.asq.len  = I40E_PF_ATQLEN;
> +	hw->aq.asq.bal  = I40E_PF_ATQBAL;
> +	hw->aq.asq.bah  = I40E_PF_ATQBAH;
> +	hw->aq.arq.tail = I40E_PF_ARQT;
> +	hw->aq.arq.head = I40E_PF_ARQH;
> +	hw->aq.arq.len  = I40E_PF_ARQLEN;
> +	hw->aq.arq.bal  = I40E_PF_ARQBAL;
> +	hw->aq.arq.bah  = I40E_PF_ARQBAH;
>  }
>  
>  /**
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
> index 9fda0cb6bdbe..7eaf8b013125 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_type.h
> +++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
> @@ -64,9 +64,7 @@ typedef void (*I40E_ADMINQ_CALLBACK)(struct i40e_hw *, struct i40e_aq_desc *);
>  enum i40e_mac_type {
>  	I40E_MAC_UNKNOWN = 0,
>  	I40E_MAC_XL710,
> -	I40E_MAC_VF,
>  	I40E_MAC_X722,
> -	I40E_MAC_X722_VF,
>  	I40E_MAC_GENERIC,
>  };
>  
> @@ -588,12 +586,6 @@ struct i40e_hw {
>  	char err_str[16];
>  };
>  
> -static inline bool i40e_is_vf(struct i40e_hw *hw)
> -{
> -	return (hw->mac.type == I40E_MAC_VF ||
> -		hw->mac.type == I40E_MAC_X722_VF);
> -}
> -
>  /**
>   * i40e_is_aq_api_ver_ge
>   * @hw: pointer to i40e_hw structure