From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/drivers/net/vsockmon.c | 38 +++-----------------------------------
1 files changed, 3 insertions(+), 35 deletions(-)
diff --git a/kernel/drivers/net/vsockmon.c b/kernel/drivers/net/vsockmon.c
index c28bdce..e8563ac 100644
--- a/kernel/drivers/net/vsockmon.c
+++ b/kernel/drivers/net/vsockmon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/if_arp.h>
@@ -10,12 +11,6 @@
/* Virtio transport max packet size plus header */
#define DEFAULT_MTU (VIRTIO_VSOCK_MAX_PKT_BUF_SIZE + \
sizeof(struct af_vsockmon_hdr))
-
-struct pcpu_lstats {
- u64 rx_packets;
- u64 rx_bytes;
- struct u64_stats_sync syncp;
-};
static int vsockmon_dev_init(struct net_device *dev)
{
@@ -52,13 +47,7 @@
static netdev_tx_t vsockmon_xmit(struct sk_buff *skb, struct net_device *dev)
{
- int len = skb->len;
- struct pcpu_lstats *stats = this_cpu_ptr(dev->lstats);
-
- u64_stats_update_begin(&stats->syncp);
- stats->rx_bytes += len;
- stats->rx_packets++;
- u64_stats_update_end(&stats->syncp);
+ dev_lstats_add(dev, skb->len);
dev_kfree_skb(skb);
@@ -68,30 +57,9 @@
static void
vsockmon_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
{
- int i;
- u64 bytes = 0, packets = 0;
+ dev_lstats_read(dev, &stats->rx_packets, &stats->rx_bytes);
- for_each_possible_cpu(i) {
- const struct pcpu_lstats *vstats;
- u64 tbytes, tpackets;
- unsigned int start;
-
- vstats = per_cpu_ptr(dev->lstats, i);
-
- do {
- start = u64_stats_fetch_begin_irq(&vstats->syncp);
- tbytes = vstats->rx_bytes;
- tpackets = vstats->rx_packets;
- } while (u64_stats_fetch_retry_irq(&vstats->syncp, start));
-
- packets += tpackets;
- bytes += tbytes;
- }
-
- stats->rx_packets = packets;
stats->tx_packets = 0;
-
- stats->rx_bytes = bytes;
stats->tx_bytes = 0;
}
--
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