linux-kernel - Re: [PATCH net V5] eth: lan743x: reject extts for non-pci11x1x devices

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Message-ID: <20220930113609.v5j75omqbbnsytss@soft-dev3-1.localhost>
Date:   Fri, 30 Sep 2022 13:36:09 +0200
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     Raju Lakkaraju <Raju.Lakkaraju@...rochip.com>
CC:     <netdev@...r.kernel.org>, <davem@...emloft.net>, <kuba@...nel.org>,
        <linux-kernel@...r.kernel.org>, <bryan.whitehead@...rochip.com>,
        <edumazet@...gle.com>, <pabeni@...hat.com>,
        <UNGLinuxDriver@...rochip.com>
Subject: Re: [PATCH net V5] eth: lan743x: reject extts for non-pci11x1x
 devices

The 09/30/2022 14:57, Raju Lakkaraju wrote:
> Remove PTP_PF_EXTTS support for non-PCI11x1x devices since they do not support
> the PTP-IO Input event triggered timestamping mechanisms added
> 
> Fixes: 60942c397af6 ("net: lan743x: Add support for PTP-IO Event Input External Timestamp (extts)")
> Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@...rochip.com>

Reviewed-by: Horatiu Vultur <horatiu.vultur@...rochip.com>

> ---
> Changes:
> ========
> V4 -> V5:
>  - Remove the Reviewed-by tag added by me 
>  - Correct the Fixes tag subject line
> 
> V3 -> V4:
>   - Fix the Fixes tag line split
> 
> V2 -> V3:
>  - Correct the Fixes tag
> 
> V1 -> V2:
>  - Repost against net with a Fixes tag
> 
>  drivers/net/ethernet/microchip/lan743x_ptp.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.c b/drivers/net/ethernet/microchip/lan743x_ptp.c
> index 6a11e2ceb013..da3ea905adbb 100644
> --- a/drivers/net/ethernet/microchip/lan743x_ptp.c
> +++ b/drivers/net/ethernet/microchip/lan743x_ptp.c
> @@ -1049,6 +1049,10 @@ static int lan743x_ptpci_verify_pin_config(struct ptp_clock_info *ptp,
>  					   enum ptp_pin_function func,
>  					   unsigned int chan)
>  {
> +	struct lan743x_ptp *lan_ptp =
> +		container_of(ptp, struct lan743x_ptp, ptp_clock_info);
> +	struct lan743x_adapter *adapter =
> +		container_of(lan_ptp, struct lan743x_adapter, ptp);
>  	int result = 0;
>  
>  	/* Confirm the requested function is supported. Parameter
> @@ -1057,7 +1061,10 @@ static int lan743x_ptpci_verify_pin_config(struct ptp_clock_info *ptp,
>  	switch (func) {
>  	case PTP_PF_NONE:
>  	case PTP_PF_PEROUT:
> +		break;
>  	case PTP_PF_EXTTS:
> +		if (!adapter->is_pci11x1x)
> +			result = -1;
>  		break;
>  	case PTP_PF_PHYSYNC:
>  	default:
> -- 
> 2.25.1
> 

-- 
/Horatiu