63 lines
1.7 KiB
Diff
63 lines
1.7 KiB
Diff
From 3d63cb611a0b7a3cde0bb9e74b0ec83501966c51 Mon Sep 17 00:00:00 2001
|
|
From: wuchangsheng <wuchangsheng2@huawei.com>
|
|
Date: Sun, 18 Dec 2022 18:50:33 +0800
|
|
Subject: [PATCH 2/2] add prefetch
|
|
|
|
---
|
|
src/core/pbuf.c | 7 +++++++
|
|
src/core/tcp_out.c | 6 ++++++
|
|
2 files changed, 13 insertions(+)
|
|
|
|
diff --git a/src/core/pbuf.c b/src/core/pbuf.c
|
|
index 404c8a7..ad75aa6 100644
|
|
--- a/src/core/pbuf.c
|
|
+++ b/src/core/pbuf.c
|
|
@@ -83,6 +83,9 @@
|
|
#if LWIP_CHECKSUM_ON_COPY
|
|
#include "lwip/inet_chksum.h"
|
|
#endif
|
|
+#if USE_LIBOS
|
|
+#include <rte_prefetch.h>
|
|
+#endif
|
|
|
|
#include <string.h>
|
|
|
|
@@ -750,6 +753,10 @@ pbuf_free(struct pbuf *p)
|
|
/* de-allocate all consecutive pbufs from the head of the chain that
|
|
* obtain a zero reference count after decrementing*/
|
|
while (p != NULL) {
|
|
+#if USE_LIBOS
|
|
+ if (p->next)
|
|
+ rte_prefetch0(p->next);
|
|
+#endif
|
|
LWIP_PBUF_REF_T ref;
|
|
SYS_ARCH_DECL_PROTECT(old_level);
|
|
/* Since decrementing ref cannot be guaranteed to be a single machine operation
|
|
diff --git a/src/core/tcp_out.c b/src/core/tcp_out.c
|
|
index 55053d8..3c4dc4b 100644
|
|
--- a/src/core/tcp_out.c
|
|
+++ b/src/core/tcp_out.c
|
|
@@ -82,6 +82,7 @@
|
|
|
|
#if USE_LIBOS
|
|
#include "lwipsock.h"
|
|
+#include <rte_prefetch.h>
|
|
#if CHECKSUM_GEN_TCP_HW
|
|
#include "dpdk_cksum.h"
|
|
#endif
|
|
@@ -1762,6 +1763,11 @@ tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb, struct netif *netif
|
|
}
|
|
#endif
|
|
|
|
+#if USE_LIBOS
|
|
+ /* pbuf into mbuf. ref dpdk_common.h */
|
|
+ rte_prefetch0((uint8_t *)(seg->p) - sizeof(struct rte_mbuf) - sizeof(uint64_t) * 2);
|
|
+#endif
|
|
+
|
|
/* Set retransmission timer running if it is not currently enabled
|
|
This must be set before checking the route. */
|
|
if (pcb->rtime < 0) {
|
|
--
|
|
2.8.4.windows.1
|
|
|