From: <Nicolas.Ferre@microchip.com>
To: <antoine.tenart@bootlin.com>, <davem@davemloft.net>,
<linux@armlinux.org.uk>
Cc: <andrew@lunn.ch>, <alexandre.belloni@bootlin.com>,
<netdev@vger.kernel.org>, <thomas.petazzoni@bootlin.com>,
<mparab@cadence.com>, <piotrs@cadence.com>,
<dkangude@cadence.com>, <ewanm@cadence.com>,
<arthurm@cadence.com>, <stevenh@cadence.com>
Subject: Re: [PATCH net-next v3 1/2] net: macb: move the Tx and Rx buffer initialization into a function
Date: Wed, 13 Nov 2019 09:20:21 +0000 [thread overview]
Message-ID: <745a8f2c-3571-5bbc-f4d7-f9a7857ac513@microchip.com> (raw)
In-Reply-To: <20191113090006.58898-2-antoine.tenart@bootlin.com>
On 13/11/2019 at 10:00, Antoine Tenart wrote:
> External E-Mail
>
>
> This patch moves the Tx and Rx buffer initialization into its own
> function. This does not modify the behaviour of the driver and will be
> helpful to convert the driver to phylink.
>
> Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
> ---
> drivers/net/ethernet/cadence/macb_main.c | 39 +++++++++++++++---------
> 1 file changed, 24 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index b884cf7f339b..1b3c8d678116 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -388,6 +388,27 @@ static int macb_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
> return status;
> }
>
> +static void macb_init_buffers(struct macb *bp)
> +{
> + struct macb_queue *queue;
> + unsigned int q;
> +
> + for (q = 0, queue = bp->queues; q < bp->num_queues; ++q, ++queue) {
> + queue_writel(queue, RBQP, lower_32_bits(queue->rx_ring_dma));
> +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
> + if (bp->hw_dma_cap & HW_DMA_CAP_64B)
> + queue_writel(queue, RBQPH,
> + upper_32_bits(queue->rx_ring_dma));
> +#endif
> + queue_writel(queue, TBQP, lower_32_bits(queue->tx_ring_dma));
> +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
> + if (bp->hw_dma_cap & HW_DMA_CAP_64B)
> + queue_writel(queue, TBQPH,
> + upper_32_bits(queue->tx_ring_dma));
> +#endif
> + }
> +}
> +
> /**
> * macb_set_tx_clk() - Set a clock to a new frequency
> * @clk Pointer to the clock to change
> @@ -1314,26 +1335,14 @@ static void macb_hresp_error_task(unsigned long data)
> bp->macbgem_ops.mog_init_rings(bp);
>
> /* Initialize TX and RX buffers */
> - for (q = 0, queue = bp->queues; q < bp->num_queues; ++q, ++queue) {
> - queue_writel(queue, RBQP, lower_32_bits(queue->rx_ring_dma));
> -#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
> - if (bp->hw_dma_cap & HW_DMA_CAP_64B)
> - queue_writel(queue, RBQPH,
> - upper_32_bits(queue->rx_ring_dma));
> -#endif
> - queue_writel(queue, TBQP, lower_32_bits(queue->tx_ring_dma));
> -#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
> - if (bp->hw_dma_cap & HW_DMA_CAP_64B)
> - queue_writel(queue, TBQPH,
> - upper_32_bits(queue->tx_ring_dma));
> -#endif
> + macb_init_buffers(bp);
>
> - /* Enable interrupts */
> + /* Enable interrupts */
> + for (q = 0, queue = bp->queues; q < bp->num_queues; ++q, ++queue)
> queue_writel(queue, IER,
> bp->rx_intr_mask |
> MACB_TX_INT_FLAGS |
> MACB_BIT(HRESP));
> - }
>
> ctrl |= MACB_BIT(RE) | MACB_BIT(TE);
> macb_writel(bp, NCR, ctrl);
>
--
Nicolas Ferre
next prev parent reply other threads:[~2019-11-13 9:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-13 9:00 [PATCH net-next v3 0/2] net: macb: convert to phylink Antoine Tenart
2019-11-13 9:00 ` [PATCH net-next v3 1/2] net: macb: move the Tx and Rx buffer initialization into a function Antoine Tenart
2019-11-13 9:20 ` Nicolas.Ferre [this message]
2019-11-13 9:00 ` [PATCH net-next v3 2/2] net: macb: convert to phylink Antoine Tenart
2019-11-13 19:46 ` [PATCH net-next v3 0/2] " David Miller
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