Re: [PATCH net-next 06/13] ravb: Factorise ravb_ring_format function
From: Sergey Shtylyov <hidden>
Date: 2021-08-26 18:55:01
Also in:
linux-renesas-soc
On 8/25/21 10:01 AM, Biju Das wrote:
The ravb_ring_format function uses an extended descriptor in RX for R-Car compared to the normal descriptor for RZ/G2L. Factorise RX ring buffer buildup to extend the support for later SoC. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
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quoted hunk ↗ jump to hunk
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index dc388a32496a..e52e36ccd1c6 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c
[...]
quoted hunk ↗ jump to hunk
@@ -321,6 +310,26 @@ static void ravb_ring_format(struct net_device *ndev, int q) rx_desc = &priv->rx_ring[q][i]; rx_desc->dptr = cpu_to_le32((u32)priv->rx_desc_dma[q]); rx_desc->die_dt = DT_LINKFIX; /* type */ +} + +/* Format skb and descriptor buffer for Ethernet AVB */ +static void ravb_ring_format(struct net_device *ndev, int q) +{ + struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; + unsigned int num_tx_desc = priv->num_tx_desc; + struct ravb_tx_desc *tx_desc; + struct ravb_desc *desc; + unsigned int tx_ring_size = sizeof(*tx_desc) * priv->num_tx_ring[q] * + num_tx_desc; + unsigned int i; + + priv->cur_rx[q] = 0; + priv->cur_tx[q] = 0; + priv->dirty_rx[q] = 0; + priv->dirty_tx[q] = 0; + + info->rx_ring_format(ndev, q); memset(priv->tx_ring[q], 0, tx_ring_size); /* Build TX ring buffer */
That's all fine but the fragment that sets up TX descriptor ring base address was left in ravb_rx_ring_formet()... [...] MBR, Sergey