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-rw-r--r--net/core/pktgen.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index fa4973bf73e9..a4f5ad1ab352 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -422,6 +422,7 @@ static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t,
const char *ifname);
static int pktgen_device_event(struct notifier_block *, unsigned long, void *);
static void pktgen_run_all_threads(void);
+static void pktgen_reset_all_threads(void);
static void pktgen_stop_all_threads_ifs(void);
static int pktgen_stop_device(struct pktgen_dev *pkt_dev);
static void pktgen_stop(struct pktgen_thread *t);
@@ -480,6 +481,9 @@ static ssize_t pgctrl_write(struct file *file, const char __user * buf,
else if (!strcmp(data, "start"))
pktgen_run_all_threads();
+ else if (!strcmp(data, "reset"))
+ pktgen_reset_all_threads();
+
else
printk(KERN_WARNING "pktgen: Unknown command: %s\n", data);
@@ -3173,6 +3177,24 @@ static void pktgen_run_all_threads(void)
pktgen_wait_all_threads_run();
}
+static void pktgen_reset_all_threads(void)
+{
+ struct pktgen_thread *t;
+
+ pr_debug("pktgen: entering pktgen_reset_all_threads.\n");
+
+ mutex_lock(&pktgen_thread_lock);
+
+ list_for_each_entry(t, &pktgen_threads, th_list)
+ t->control |= (T_REMDEVALL);
+
+ mutex_unlock(&pktgen_thread_lock);
+
+ schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */
+
+ pktgen_wait_all_threads_run();
+}
+
static void show_results(struct pktgen_dev *pkt_dev, int nr_frags)
{
__u64 total_us, bps, mbps, pps, idle;