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authorEric Dumazet <eric.dumazet@gmail.com>2009-10-01 09:29:45 -0700
committerDavid S. Miller <davem@davemloft.net>2009-10-01 09:29:45 -0700
commit417bc4b855f04dd4ad27a7cabe3e7996a7b78ddb (patch)
tree75752bd8823f98b27957d02ea95ae582ff1e6a84 /net
parenta00d2102ce01df5f0a8892814ecd26d130d47e7d (diff)
downloadlwn-417bc4b855f04dd4ad27a7cabe3e7996a7b78ddb.tar.gz
lwn-417bc4b855f04dd4ad27a7cabe3e7996a7b78ddb.zip
pktgen: Fix delay handling
After last pktgen changes, delay handling is wrong. pktgen actually sends packets at full line speed. Fix is to update pkt_dev->next_tx even if spin() returns early, so that next spin() calls have a chance to see a positive delay. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/pktgen.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 4d11c28ca8ca..b69455217ed6 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2105,15 +2105,17 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev)
static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until)
{
ktime_t start_time, end_time;
- s32 remaining;
+ s64 remaining;
struct hrtimer_sleeper t;
hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
hrtimer_set_expires(&t.timer, spin_until);
remaining = ktime_to_us(hrtimer_expires_remaining(&t.timer));
- if (remaining <= 0)
+ if (remaining <= 0) {
+ pkt_dev->next_tx = ktime_add_ns(spin_until, pkt_dev->delay);
return;
+ }
start_time = ktime_now();
if (remaining < 100)