Commit ae2259ee authored by Sieng Piaw Liew's avatar Sieng Piaw Liew Committed by Jakub Kicinski
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bcm63xx_enet: 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: default avatarSieng Piaw Liew <liew.s.piaw@gmail.com>
Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent d27de0ef

drivers/net/ethernet/broadcom/bcm63xx_enet.c

+2 −2
Original line number Diff line number Diff line
@@ -339,7 +339,6 @@ static int bcm_enet_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 */
@@ -404,9 +403,10 @@ static int bcm_enet_receive_queue(struct net_device *dev, int budget) 
		dev->stats.rx_bytes += len;

		list_add_tail(&skb->list, &rx_list);



	} while (--budget > 0);

	} while (processed < budget);



	netif_receive_skb_list(&rx_list);

	priv->rx_desc_count -= processed;



	if (processed || !priv->rx_desc_count) {

		bcm_enet_refill_rx(dev, true);