提交 1cbbcb08 编写于 作者: V Vladimir Kondratiev 提交者: John W. Linville

wil6210: prefetch head of packet

As soon as skb is ready to be reaped, prefetch 1-st cache line.
This accelerates data access that is performed later, during the
packet classification by the driver and IP stack.
Signed-off-by: NVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
上级 df2d08ee
......@@ -21,6 +21,7 @@
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <net/ipv6.h>
#include <asm/processor.h>
#include "wil6210.h"
#include "wmi.h"
......@@ -377,6 +378,8 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
}
skb_trim(skb, dmalen);
prefetch(skb->data);
wil_hex_dump_txrx("Rx ", DUMP_PREFIX_OFFSET, 16, 1,
skb->data, skb_headlen(skb), false);
......
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