[PATCH net-next v3 3/7] bcm63xx_enet: add xmit_more support

Sieng Piaw Liew
2021-01-06T14:45:07Z

Support bulking hardware TX queue by using netdev_xmit_more().

Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
---
drivers/net/ethernet/broadcom/bcm63xx_enet.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index 90f8214b4d22..21744dae30ce 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -634,7 +634,8 @@ bcm_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
netdev_sent_queue(dev, skb->len);

/* kick tx dma */
- enet_dmac_writel(priv, priv->dma_chan_en_mask,
+ if (!netdev_xmit_more() || !priv->tx_desc_count)
+ enet_dmac_writel(priv, priv->dma_chan_en_mask,
ENETDMAC_CHANCFG, priv->tx_chan);

/* stop queue if no more desc available */
--
2.17.1