netdev - Re: [Intel-wired-lan] [PATCH 1/3] e1000e: Separate TGP from SPT

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Message-ID: <d0bc9dbd-9b7a-5807-2ade-e710964a05a1@intel.com>
Date:   Tue, 13 Jul 2021 20:58:00 +0300
From:   Sasha Neftin <sasha.neftin@...el.com>
To:     Kai-Heng Feng <kai.heng.feng@...onical.com>,
        <jesse.brandeburg@...el.com>, <anthony.l.nguyen@...el.com>
CC:     "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        <acelan.kao@...onical.com>, Jakub Kicinski <kuba@...nel.org>,
        "moderated list:INTEL ETHERNET DRIVERS" 
        <intel-wired-lan@...ts.osuosl.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [Intel-wired-lan] [PATCH 1/3] e1000e: Separate TGP from SPT

On 7/12/2021 16:34, Kai-Heng Feng wrote:
> Separate TGP from SPT so we can apply specific quirks to TGP.
> 
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
> ---
>   drivers/net/ethernet/intel/e1000e/e1000.h   |  4 +++-
>   drivers/net/ethernet/intel/e1000e/ich8lan.c | 20 ++++++++++++++++++++
>   drivers/net/ethernet/intel/e1000e/netdev.c  | 13 +++++++------
>   3 files changed, 30 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h
> index 5b2143f4b1f8..3178efd98006 100644
> --- a/drivers/net/ethernet/intel/e1000e/e1000.h
> +++ b/drivers/net/ethernet/intel/e1000e/e1000.h
> @@ -113,7 +113,8 @@ enum e1000_boards {
>   	board_pch2lan,
>   	board_pch_lpt,
>   	board_pch_spt,
> -	board_pch_cnp
> +	board_pch_cnp,
Hello Kai-Heng,
I would agree with you here. I would suggest extending it also for other 
PCH (at least ADP and MTP).  The same controller on a different PCH.
We will be able to differentiate between boards via MAC type and submit 
quirks if need.
> +	board_pch_tgp
>   };
>   
>   struct e1000_ps_page {
> @@ -499,6 +500,7 @@ extern const struct e1000_info e1000_pch2_info;
>   extern const struct e1000_info e1000_pch_lpt_info;
>   extern const struct e1000_info e1000_pch_spt_info;
>   extern const struct e1000_info e1000_pch_cnp_info;
> +extern const struct e1000_info e1000_pch_tgp_info;
>   extern const struct e1000_info e1000_es2_info;
>   
>   void e1000e_ptp_init(struct e1000_adapter *adapter);
> diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
> index cf7b3887da1d..654dbe798e55 100644
> --- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
> +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
> @@ -5967,3 +5967,23 @@ const struct e1000_info e1000_pch_cnp_info = {
>   	.phy_ops		= &ich8_phy_ops,
>   	.nvm_ops		= &spt_nvm_ops,
>   };
> +
> +const struct e1000_info e1000_pch_tgp_info = {
> +	.mac			= e1000_pch_tgp,
> +	.flags			= FLAG_IS_ICH
> +				  | FLAG_HAS_WOL
> +				  | FLAG_HAS_HW_TIMESTAMP
> +				  | FLAG_HAS_CTRLEXT_ON_LOAD
> +				  | FLAG_HAS_AMT
> +				  | FLAG_HAS_FLASH
> +				  | FLAG_HAS_JUMBO_FRAMES
> +				  | FLAG_APME_IN_WUC,
> +	.flags2			= FLAG2_HAS_PHY_STATS
> +				  | FLAG2_HAS_EEE,
> +	.pba			= 26,
> +	.max_hw_frame_size	= 9022,
> +	.get_variants		= e1000_get_variants_ich8lan,
> +	.mac_ops		= &ich8_mac_ops,
> +	.phy_ops		= &ich8_phy_ops,
> +	.nvm_ops		= &spt_nvm_ops,
> +};
> diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
> index d150dade06cf..5835d6cf2f51 100644
> --- a/drivers/net/ethernet/intel/e1000e/netdev.c
> +++ b/drivers/net/ethernet/intel/e1000e/netdev.c
> @@ -51,6 +51,7 @@ static const struct e1000_info *e1000_info_tbl[] = {
>   	[board_pch_lpt]		= &e1000_pch_lpt_info,
>   	[board_pch_spt]		= &e1000_pch_spt_info,
>   	[board_pch_cnp]		= &e1000_pch_cnp_info,
> +	[board_pch_tgp]		= &e1000_pch_tgp_info,
>   };
>   
>   struct e1000_reg_info {
> @@ -7843,12 +7844,12 @@ static const struct pci_device_id e1000_pci_tbl[] = {
>   	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_V11), board_pch_cnp },
>   	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_LM12), board_pch_spt },
>   	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_V12), board_pch_spt },
> -	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM13), board_pch_cnp },
> -	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V13), board_pch_cnp },
> -	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM14), board_pch_cnp },
> -	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V14), board_pch_cnp },
> -	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM15), board_pch_cnp },
> -	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V15), board_pch_cnp },
> +	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM13), board_pch_tgp },
> +	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V13), board_pch_tgp },
> +	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM14), board_pch_tgp },
> +	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V14), board_pch_tgp },
> +	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM15), board_pch_tgp },
> +	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V15), board_pch_tgp },
>   	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_LM16), board_pch_cnp },
>   	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_V16), board_pch_cnp },
>   	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_LM17), board_pch_cnp },
> 
Thanks,
Sasha