Mark McLoughlin wrote:
The idea here is that with GSO, packets are much larger
and we can allow the vcpu threads to e.g. process irq
acks during the window where we're reading these
packets from the tapfd.
Signed-off-by: Mark McLoughlin <[EMAIL PROTECTED]>
---
qemu/vl.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/qemu/vl.c b/qemu/vl.c
index efdaafd..de92848 100644
--- a/qemu/vl.c
+++ b/qemu/vl.c
@@ -4281,7 +4281,9 @@ static void tap_send(void *opaque)
sbuf.buf = s->buf;
s->size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
#else
Maybe do it only when GSO is actually used by the guest/tap.
Otherwise it can cause some ctx trashing right?
+ kvm_sleep_begin();
s->size = read(s->fd, s->buf, sizeof(s->buf));
+ kvm_sleep_end();
#endif
if (s->size == -1 && errno == EINTR)
--
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