linux-kernel - Re: [PATCH 1/1] net: macb: restore cmp registers on resume path

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Date:   Fri, 2 Apr 2021 15:38:38 +0200
From:   Nicolas Ferre <nicolas.ferre@...rochip.com>
To:     Claudiu Beznea <claudiu.beznea@...rochip.com>,
        <davem@...emloft.net>, <kuba@...nel.org>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] net: macb: restore cmp registers on resume path

On 02/04/2021 at 14:42, Claudiu Beznea wrote:
> Restore CMP screener registers on resume path.
> 
> Fixes: c1e85c6ce57ef ("net: macb: save/restore the remaining registers and features")
> Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>

Acked-by: Nicolas Ferre <nicolas.ferre@...rochip.com>

Thanks for this fix Claudiu. Best regards,
   Nicolas

> ---
>   drivers/net/ethernet/cadence/macb_main.c | 7 +++++++
>   1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index f56f3dbbc015..ffd56a23f8b0 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -3269,6 +3269,9 @@ static void gem_prog_cmp_regs(struct macb *bp, struct ethtool_rx_flow_spec *fs)
>   	bool cmp_b = false;
>   	bool cmp_c = false;
>   
> +	if (!macb_is_gem(bp))
> +		return;
> +
>   	tp4sp_v = &(fs->h_u.tcp_ip4_spec);
>   	tp4sp_m = &(fs->m_u.tcp_ip4_spec);
>   
> @@ -3637,6 +3640,7 @@ static void macb_restore_features(struct macb *bp)
>   {
>   	struct net_device *netdev = bp->dev;
>   	netdev_features_t features = netdev->features;
> +	struct ethtool_rx_fs_item *item;
>   
>   	/* TX checksum offload */
>   	macb_set_txcsum_feature(bp, features);
> @@ -3645,6 +3649,9 @@ static void macb_restore_features(struct macb *bp)
>   	macb_set_rxcsum_feature(bp, features);
>   
>   	/* RX Flow Filters */
> +	list_for_each_entry(item, &bp->rx_fs_list.list, list)
> +		gem_prog_cmp_regs(bp, &item->fs);
> +
>   	macb_set_rxflow_feature(bp, features);
>   }
>   
> 


-- 
Nicolas Ferre