From: Chuanhong Guo <gch981...@gmail.com>
This new function make batch processing of network packets possible,
which slightly improves performance.
Signed-off-by: Chuanhong Guo <gch981...@gmail.com>
Tested-by: Rosen Penev <ros...@gmail.com>
---
around a 20mbps improvement is measured on a TP-LINK Archer C7v2
.../net/ethernet/atheros/ag71xx/ag71xx_main.c | 20 ++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git
a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
index 0924b81b92..8831a51acc 100644
--- a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
@@ -1106,14 +1106,22 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int
limit)
unsigned int offset = ag->rx_buf_offset;
int ring_mask = BIT(ring->order) - 1;
int ring_size = BIT(ring->order);
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
+ struct list_head rx_list;
+ struct sk_buff *next;
+#else
struct sk_buff_head queue;
+#endif
struct sk_buff *skb;
int done = 0;
DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n",
dev->name, limit, ring->curr, ring->dirty);
-
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
+ INIT_LIST_HEAD(&rx_list);
+#else
skb_queue_head_init(&queue);
+#endif
while (done < limit) {
unsigned int i = ring->curr & ring_mask;
@@ -1155,7 +1163,11 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int
limit)
} else {
skb->dev = dev;
skb->ip_summed = CHECKSUM_NONE;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
+ list_add_tail(&skb->list, &rx_list);
+#else
__skb_queue_tail(&queue, skb);
+#endif
}
next:
@@ -1167,10 +1179,16 @@ next:
ag71xx_ring_rx_refill(ag);
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
+ list_for_each_entry_safe(skb, next, &rx_list, list)
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_receive_skb_list(&rx_list);
+#else
while ((skb = __skb_dequeue(&queue)) != NULL) {
skb->protocol = eth_type_trans(skb, dev);
netif_receive_skb(skb);
}
+#endif
DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n",
dev->name, ring->curr, ring->dirty, done);
--
2.24.1
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