Displaying 6 results from an estimated 6 matches for "call_index".
2017 Oct 26
3
[PATCH] virtio/ringtest: fix up need_event math
...avail_idx = guest.avail_idx;
- kick();
+ if (need)
+ kick();
}
/* host side */
@@ -265,14 +267,18 @@ bool use_buf(unsigned *lenp, void **bufp)
void call_used(void)
{
+ bool need;
+
/* Flush in previous flags write */
/* Barrier D (for pairing) */
smp_mb();
- if (!need_event(event->call_index,
+
+ need = !need_event(event->call_index,
host.used_idx,
- host.called_used_idx))
- return;
+ host.called_used_idx);
host.called_used_idx = host.used_idx;
- call();
+
+ if (need)
+ call();
}
--
MST
2017 Oct 26
3
[PATCH] virtio/ringtest: fix up need_event math
...avail_idx = guest.avail_idx;
- kick();
+ if (need)
+ kick();
}
/* host side */
@@ -265,14 +267,18 @@ bool use_buf(unsigned *lenp, void **bufp)
void call_used(void)
{
+ bool need;
+
/* Flush in previous flags write */
/* Barrier D (for pairing) */
smp_mb();
- if (!need_event(event->call_index,
+
+ need = !need_event(event->call_index,
host.used_idx,
- host.called_used_idx))
- return;
+ host.called_used_idx);
host.called_used_idx = host.used_idx;
- call();
+
+ if (need)
+ call();
}
--
MST
2017 Dec 18
0
[PATCH v2] virtio/ringtest: fix up need_event math
...avail_idx = guest.avail_idx;
- kick();
+ if (need)
+ kick();
}
/* host side */
@@ -253,14 +255,18 @@ bool use_buf(unsigned *lenp, void **bufp)
void call_used(void)
{
+ bool need;
+
/* Flush in previous flags write */
/* Barrier D (for pairing) */
smp_mb();
- if (!need_event(event->call_index,
+
+ need = need_event(event->call_index,
host.used_idx,
- host.called_used_idx))
- return;
+ host.called_used_idx);
host.called_used_idx = host.used_idx;
- call();
+
+ if (need)
+ call();
}
--
MST
2017 Dec 18
0
[PATCH v2] virtio/ringtest: fix up need_event math
...avail_idx = guest.avail_idx;
- kick();
+ if (need)
+ kick();
}
/* host side */
@@ -253,14 +255,18 @@ bool use_buf(unsigned *lenp, void **bufp)
void call_used(void)
{
+ bool need;
+
/* Flush in previous flags write */
/* Barrier D (for pairing) */
smp_mb();
- if (!need_event(event->call_index,
+
+ need = need_event(event->call_index,
host.used_idx,
- host.called_used_idx))
- return;
+ host.called_used_idx);
host.called_used_idx = host.used_idx;
- call();
+
+ if (need)
+ call();
}
--
MST
2016 Jan 21
1
[PATCH] tools/virtio: add ringtest utilities
...nsigned short index;
+ unsigned len;
+ unsigned long long addr;
+};
+
+/* how much padding is needed to avoid false cache sharing */
+#define HOST_GUEST_PADDING 0x80
+
+/* Mostly read */
+struct event {
+ unsigned short kick_index;
+ unsigned char reserved0[HOST_GUEST_PADDING - 2];
+ unsigned short call_index;
+ unsigned char reserved1[HOST_GUEST_PADDING - 2];
+};
+
+struct data {
+ void *buf; /* descriptor is writeable, we can't get buf from there */
+ void *data;
+} *data;
+
+struct desc *ring;
+struct event *event;
+
+struct guest {
+ unsigned avail_idx;
+ unsigned last_used_idx;
+ unsigned num_f...
2016 Jan 21
1
[PATCH] tools/virtio: add ringtest utilities
...nsigned short index;
+ unsigned len;
+ unsigned long long addr;
+};
+
+/* how much padding is needed to avoid false cache sharing */
+#define HOST_GUEST_PADDING 0x80
+
+/* Mostly read */
+struct event {
+ unsigned short kick_index;
+ unsigned char reserved0[HOST_GUEST_PADDING - 2];
+ unsigned short call_index;
+ unsigned char reserved1[HOST_GUEST_PADDING - 2];
+};
+
+struct data {
+ void *buf; /* descriptor is writeable, we can't get buf from there */
+ void *data;
+} *data;
+
+struct desc *ring;
+struct event *event;
+
+struct guest {
+ unsigned avail_idx;
+ unsigned last_used_idx;
+ unsigned num_f...