From: Sieng Piaw Liew Date: Thu, 23 Jun 2022 06:48:42 +0000 (+0800) Subject: bmips: improve rx loop X-Git-Tag: v23.05.0-rc1~863 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=6276dad6caadc6dc96bb6fb54d432bc8d8455a0e;p=openwrt%2Fopenwrt.git bmips: improve rx loop Use existing rx processed count to track against budget, thereby making budget decrement operation redundant. rx_desc_count can be calculated outside the rx loop, making the loop a bit smaller. Signed-off-by: Sieng Piaw Liew --- diff --git a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c index 962f9ac887..04884a122d 100644 --- a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c +++ b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c @@ -367,7 +367,6 @@ static int bcm6368_enetsw_receive_queue(struct net_device *dev, int budget) priv->rx_curr_desc++; if (priv->rx_curr_desc == priv->rx_ring_size) priv->rx_curr_desc = 0; - priv->rx_desc_count--; /* if the packet does not have start of packet _and_ * end of packet flag set, then just recycle it */ @@ -420,7 +419,9 @@ static int bcm6368_enetsw_receive_queue(struct net_device *dev, int budget) dev->stats.rx_packets++; dev->stats.rx_bytes += len; netif_receive_skb(skb); - } while (--budget > 0); + } while (processed < budget); + + priv->rx_desc_count -= processed; if (processed || !priv->rx_desc_count) { bcm6368_enetsw_refill_rx(dev, true);