41 lines
1.4 KiB
Diff
41 lines
1.4 KiB
Diff
From ae2259eebeacb7753e3043278957b45840123972 Mon Sep 17 00:00:00 2001
|
|
From: Sieng Piaw Liew <liew.s.piaw@gmail.com>
|
|
Date: Wed, 6 Jan 2021 22:42:08 +0800
|
|
Subject: [PATCH 7/7] 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: Sieng Piaw Liew <liew.s.piaw@gmail.com>
|
|
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
|
|
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
---
|
|
drivers/net/ethernet/broadcom/bcm63xx_enet.c | 4 ++--
|
|
1 file changed, 2 insertions(+), 2 deletions(-)
|
|
|
|
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
|
|
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
|
|
@@ -340,7 +340,6 @@ static int bcm_enet_receive_queue(struct
|
|
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 */
|
|
@@ -405,9 +404,10 @@ static int bcm_enet_receive_queue(struct
|
|
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);
|