netdev - Re: [PATCH] atl1c: use netif_tx_napi

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Date:   Thu, 14 Jul 2022 21:38:57 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Sieng-Piaw Liew <liew.s.piaw@...il.com>
Cc:     davem@...emloft.net, pabeni@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] atl1c: use netif_tx_napi_add() for Tx NAPI

On Fri, 15 Jul 2022 12:21:31 +0800 Sieng-Piaw Liew wrote:
> Use netif_tx_napi_add() for NAPI in Tx direction instead of the regular
> netif_napi_add() function.
> 
> Signed-off-by: Sieng-Piaw Liew <liew.s.piaw@...il.com>

Please use netif_napi_add_tx(), since you use the default weight 
anyway there's no need to specify it.

> diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
> index 948584761e66..bf293a3ed4c9 100644
> --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
> +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
> @@ -2734,8 +2734,8 @@ static int atl1c_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  		netif_napi_add(netdev, &adapter->rrd_ring[i].napi,
>  			       atl1c_clean_rx, 64);
>  	for (i = 0; i < adapter->tx_queue_count; ++i)
> -		netif_napi_add(netdev, &adapter->tpd_ring[i].napi,
> -			       atl1c_clean_tx, 64);
> +		netif_napi_add_tx_weight(netdev, &adapter->tpd_ring[i].napi,
> +					 atl1c_clean_tx, 64);
>  	timer_setup(&adapter->phy_config_timer, atl1c_phy_config, 0);
>  	/* setup the private structure */
>  	err = atl1c_sw_init(adapter);