Re: [PATCH v4 02/10] net: eth: altera: set rx and tx ring size before init_dma call

[Thor Thayer]

On 7/8/20 2:23 AM, Ooi, Joyce wrote:
> From: Dalon Westergreen <dalon.westergreen@xxxxxxxxx>
>
> It is more appropriate to set the rx and tx ring size before calling
> the init function for the dma.
>
> Signed-off-by: Dalon Westergreen <dalon.westergreen@xxxxxxxxx>
> Signed-off-by: Joyce Ooi <joyce.ooi@xxxxxxxxx>
> ---
> v2: no change
> v3: no change
> v4: no change
> ---
>   drivers/net/ethernet/altera/altera_tse_main.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
> index ec2b36e05c3f..a3749ffdcac9 100644
> --- a/drivers/net/ethernet/altera/altera_tse_main.c
> +++ b/drivers/net/ethernet/altera/altera_tse_main.c
> @@ -1154,6 +1154,10 @@ static int tse_open(struct net_device *dev)
>   	int i;
>   	unsigned long int flags;
>   
> +	/* set tx and rx ring size */
> +	priv->rx_ring_size = dma_rx_num;
> +	priv->tx_ring_size = dma_tx_num;
> +
>   	/* Reset and configure TSE MAC and probe associated PHY */
>   	ret = priv->dmaops->init_dma(priv);
>   	if (ret != 0) {
> @@ -1196,8 +1200,6 @@ static int tse_open(struct net_device *dev)
>   	priv->dmaops->reset_dma(priv);
>   
>   	/* Create and initialize the TX/RX descriptors chains. */
> -	priv->rx_ring_size = dma_rx_num;
> -	priv->tx_ring_size = dma_tx_num;
>   	ret = alloc_init_skbufs(priv);
>   	if (ret) {
>   		netdev_err(dev, "DMA descriptors initialization failed\n");
Reviewed-by: Thor Thayer <thor.thayer@xxxxxxxxxxxxxxx>