target/linux/bcm63xx/patches-5.10/022-v5.12-bcm63xx_enet-add-xmit_more-support.patch

   1 From 375281d3a6dcabaa98f489ee412aedca6d99dffb Mon Sep 17 00:00:00 2001
   2 From: Sieng Piaw Liew <liew.s.piaw@gmail.com>
   3 Date: Wed, 6 Jan 2021 22:42:04 +0800
   4 Subject: [PATCH 3/7] bcm63xx_enet: add xmit_more support
   5
   6 Support bulking hardware TX queue by using netdev_xmit_more().
   7
   8 Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
   9 Acked-by: Florian Fainelli <f.fainelli@gmail.com>
  10 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  11 ---
  12  drivers/net/ethernet/broadcom/bcm63xx_enet.c | 3 ++-
  13  1 file changed, 2 insertions(+), 1 deletion(-)
  14
  15 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
  16 +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
  17 @@ -634,7 +634,8 @@ bcm_enet_start_xmit(struct sk_buff *skb,
  18         netdev_sent_queue(dev, skb->len);
  19
  20         /* kick tx dma */
  21 -       enet_dmac_writel(priv, priv->dma_chan_en_mask,
  22 +       if (!netdev_xmit_more() || !priv->tx_desc_count)
  23 +               enet_dmac_writel(priv, priv->dma_chan_en_mask,
  24                                  ENETDMAC_CHANCFG, priv->tx_chan);
  25
  26         /* stop queue if no more desc available */