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bmips: improve rx loop

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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 <liew.s.piaw@gmail.com>
This commit is contained in:
Sieng Piaw Liew 2022-06-23 14:48:42 +08:00 committed by Álvaro Fernández Rojas
parent 330cbcc09c
commit 6276dad6ca
1 changed files with 3 additions and 2 deletions
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5
target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c
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@ -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);