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[Qemu-devel] [RFC PATCH for 2.11] tests: Introduce generic device hot-pl
From: |
Thomas Huth |
Subject: |
[Qemu-devel] [RFC PATCH for 2.11] tests: Introduce generic device hot-plug/hot-unplug functions |
Date: |
Tue, 15 Aug 2017 11:22:44 +0200 |
A lot of tests provide code for adding and removing a device via the
device_add and device_del QMP commands. Maintaining this code in so
many places is cumbersome and error-prone (some of the code parts
check the responses in an incorrect way, for example), so let's
provide some proper generic qtest functions for adding and removing a
device instead.
Signed-off-by: Thomas Huth <address@hidden>
---
I'm planning to use qtest_hot_plug_device() in a bigger patch series
that I'm currently preparing. But since this clean-up patch is valid on
its own already, I'd like to get some feedback (or even a Reviewed-by)
for this patch here already if possible...
tests/libqos/pci.c | 19 ++-------------
tests/libqos/usb.c | 30 +++++------------------
tests/libqtest.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++
tests/libqtest.h | 19 +++++++++++++++
tests/usb-hcd-uhci-test.c | 26 ++------------------
tests/usb-hcd-xhci-test.c | 52 ++++------------------------------------
tests/virtio-scsi-test.c | 24 ++-----------------
tests/virtio-serial-test.c | 25 +++----------------
8 files changed, 98 insertions(+), 157 deletions(-)
diff --git a/tests/libqos/pci.c b/tests/libqos/pci.c
index 2dcdead..aada753 100644
--- a/tests/libqos/pci.c
+++ b/tests/libqos/pci.c
@@ -394,21 +394,6 @@ QPCIBar qpci_legacy_iomap(QPCIDevice *dev, uint16_t addr)
void qpci_plug_device_test(const char *driver, const char *id,
uint8_t slot, const char *opts)
{
- QDict *response;
- char *cmd;
-
- cmd = g_strdup_printf("{'execute': 'device_add',"
- " 'arguments': {"
- " 'driver': '%s',"
- " 'addr': '%d',"
- " %s%s"
- " 'id': '%s'"
- "}}", driver, slot,
- opts ? opts : "", opts ? "," : "",
- id);
- response = qmp(cmd);
- g_free(cmd);
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
+ qtest_hot_plug_device(driver, id, "'addr': '%d'%s%s", slot,
+ opts ? ", " : "", opts ? opts : "");
}
diff --git a/tests/libqos/usb.c b/tests/libqos/usb.c
index 0cdfaec..f8d0190 100644
--- a/tests/libqos/usb.c
+++ b/tests/libqos/usb.c
@@ -40,34 +40,16 @@ void uhci_port_test(struct qhc *hc, int port, uint16_t
expect)
void usb_test_hotplug(const char *hcd_id, const int port,
void (*port_check)(void))
{
- QDict *response;
- char *cmd;
+ char *id = g_strdup_printf("usbdev%d", port);
- cmd = g_strdup_printf("{'execute': 'device_add',"
- " 'arguments': {"
- " 'driver': 'usb-tablet',"
- " 'port': '%d',"
- " 'bus': '%s.0',"
- " 'id': 'usbdev%d'"
- "}}", port, hcd_id, port);
- response = qmp(cmd);
- g_free(cmd);
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
+ qtest_hot_plug_device("usb-tablet", id, "'port': '%d', 'bus': '%s.0'",
+ port, hcd_id);
if (port_check) {
port_check();
}
- cmd = g_strdup_printf("{'execute': 'device_del',"
- " 'arguments': {"
- " 'id': 'usbdev%d'"
- "}}", port);
- response = qmp(cmd);
- g_free(cmd);
- g_assert(response);
- g_assert(qdict_haskey(response, "event"));
- g_assert(!strcmp(qdict_get_str(response, "event"), "DEVICE_DELETED"));
- QDECREF(response);
+ qtest_hot_unplug_device(id);
+
+ g_free(id);
}
diff --git a/tests/libqtest.c b/tests/libqtest.c
index b9a1f18..4339d97 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -987,3 +987,63 @@ void qtest_cb_for_every_machine(void (*cb)(const char
*machine))
qtest_end();
QDECREF(response);
}
+
+/**
+ * Generic hot-plugging test via the device_add QMP command
+ */
+void qtest_hot_plug_device(const char *driver, const char *id,
+ const char *fmt, ...)
+{
+ QDict *response;
+ char *cmd, *opts = NULL;
+ va_list va;
+
+ if (fmt) {
+ va_start(va, fmt);
+ opts = g_strdup_vprintf(fmt, va);
+ va_end(va);
+ }
+
+ cmd = g_strdup_printf("{'execute': 'device_add',"
+ " 'arguments': { 'driver': '%s', 'id': '%s'%s%s }}",
+ driver, id, opts ? ", " : "", opts ? opts : "");
+ g_free(opts);
+
+ response = qmp(cmd);
+ g_free(cmd);
+ g_assert(response);
+ while (qdict_haskey(response, "event")) {
+ /* We can get DEVICE_DELETED events in case something went wrong */
+ g_assert_cmpstr(qdict_get_str(response, "event"), !=,
"DEVICE_DELETED");
+ QDECREF(response);
+ response = qmp("");
+ g_assert(response);
+ }
+ g_assert(!qdict_haskey(response, "error"));
+ QDECREF(response);
+}
+
+/**
+ * Generic hot-unplugging test via the device_del QMP command
+ */
+void qtest_hot_unplug_device(const char *id)
+{
+ QDict *response;
+ char *cmd;
+
+ cmd = g_strdup_printf("{'execute': 'device_del',"
+ " 'arguments': { 'id': '%s' }}", id);
+
+ response = qmp(cmd);
+ g_free(cmd);
+ g_assert(response);
+ while (qdict_haskey(response, "event")) {
+ /* We should get DEVICE_DELETED event first */
+ g_assert_cmpstr(qdict_get_str(response, "event"), ==,
"DEVICE_DELETED");
+ QDECREF(response);
+ response = qmp("");
+ g_assert(response);
+ }
+ g_assert(!qdict_haskey(response, "error"));
+ QDECREF(response);
+}
diff --git a/tests/libqtest.h b/tests/libqtest.h
index 3ae5709..9c1006f 100644
--- a/tests/libqtest.h
+++ b/tests/libqtest.h
@@ -927,4 +927,23 @@ QDict *qmp_fd(int fd, const char *fmt, ...);
*/
void qtest_cb_for_every_machine(void (*cb)(const char *machine));
+/**
+ * qtest_hot_plug_device:
+ * @driver: Name of the device that should be added
+ * @id: Identification string
+ * @fmt: printf-like format string for further options to device_add
+ *
+ * Generic hot-plugging test via the device_add QMP command.
+ */
+void qtest_hot_plug_device(const char *driver, const char *id,
+ const char *fmt, ...) GCC_FMT_ATTR(3, 4);
+
+/**
+ * qtest_hot_unplug_device:
+ * @id: Identification string
+ *
+ * Generic hot-unplugging test via the device_del QMP command.
+ */
+void qtest_hot_unplug_device(const char *id);
+
#endif
diff --git a/tests/usb-hcd-uhci-test.c b/tests/usb-hcd-uhci-test.c
index 5b500fe..7465bfd 100644
--- a/tests/usb-hcd-uhci-test.c
+++ b/tests/usb-hcd-uhci-test.c
@@ -48,31 +48,9 @@ static void test_uhci_hotplug(void)
static void test_usb_storage_hotplug(void)
{
- QDict *response;
+ qtest_hot_plug_device("usb-storage", "usbdev0", "'drive': 'drive0'");
- response = qmp("{'execute': 'device_add',"
- " 'arguments': {"
- " 'driver': 'usb-storage',"
- " 'drive': 'drive0',"
- " 'id': 'usbdev0'"
- "}}");
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
-
- response = qmp("{'execute': 'device_del',"
- " 'arguments': {"
- " 'id': 'usbdev0'"
- "}}");
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
-
- response = qmp("");
- g_assert(response);
- g_assert(qdict_haskey(response, "event"));
- g_assert(!strcmp(qdict_get_str(response, "event"), "DEVICE_DELETED"));
- QDECREF(response);
+ qtest_hot_unplug_device("usbdev0");
}
int main(int argc, char **argv)
diff --git a/tests/usb-hcd-xhci-test.c b/tests/usb-hcd-xhci-test.c
index 031764d..ae89362 100644
--- a/tests/usb-hcd-xhci-test.c
+++ b/tests/usb-hcd-xhci-test.c
@@ -11,7 +11,6 @@
#include "libqtest.h"
#include "libqos/usb.h"
-
static void test_xhci_init(void)
{
}
@@ -23,59 +22,16 @@ static void test_xhci_hotplug(void)
static void test_usb_uas_hotplug(void)
{
- QDict *response;
-
- response = qmp("{'execute': 'device_add',"
- " 'arguments': {"
- " 'driver': 'usb-uas',"
- " 'id': 'uas'"
- "}}");
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
-
- response = qmp("{'execute': 'device_add',"
- " 'arguments': {"
- " 'driver': 'scsi-hd',"
- " 'drive': 'drive0',"
- " 'id': 'scsi-hd'"
- "}}");
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
+ qtest_hot_plug_device("usb-uas", "uas", NULL);
+ qtest_hot_plug_device("scsi-hd", "scsihd", "'drive': 'drive0'");
/* TODO:
UAS HBA driver in libqos, to check that
added disk is visible after BUS rescan
*/
- response = qmp("{'execute': 'device_del',"
- " 'arguments': {"
- " 'id': 'scsi-hd'"
- "}}");
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
-
- response = qmp("");
- g_assert(qdict_haskey(response, "event"));
- g_assert(!strcmp(qdict_get_str(response, "event"), "DEVICE_DELETED"));
- QDECREF(response);
-
-
- response = qmp("{'execute': 'device_del',"
- " 'arguments': {"
- " 'id': 'uas'"
- "}}");
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
-
- response = qmp("");
- g_assert(response);
- g_assert(qdict_haskey(response, "event"));
- g_assert(!strcmp(qdict_get_str(response, "event"), "DEVICE_DELETED"));
- QDECREF(response);
+ qtest_hot_unplug_device("scsihd");
+ qtest_hot_unplug_device("uas");
}
int main(int argc, char **argv)
diff --git a/tests/virtio-scsi-test.c b/tests/virtio-scsi-test.c
index 87a3b6e..6e7ba6f 100644
--- a/tests/virtio-scsi-test.c
+++ b/tests/virtio-scsi-test.c
@@ -192,32 +192,12 @@ static void pci_nop(void)
static void hotplug(void)
{
- QDict *response;
QOSState *qs;
qs = qvirtio_scsi_start(
"-drive id=drv1,if=none,file=null-co://,format=raw");
- response = qmp("{\"execute\": \"device_add\","
- " \"arguments\": {"
- " \"driver\": \"scsi-hd\","
- " \"id\": \"scsi-hd\","
- " \"drive\": \"drv1\""
- "}}");
-
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
-
- response = qmp("{\"execute\": \"device_del\","
- " \"arguments\": {"
- " \"id\": \"scsi-hd\""
- "}}");
-
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- g_assert(qdict_haskey(response, "event"));
- g_assert(!strcmp(qdict_get_str(response, "event"), "DEVICE_DELETED"));
- QDECREF(response);
+ qtest_hot_plug_device("scsi-hd", "scsihd", "'drive': 'drv1'");
+ qtest_hot_unplug_device("scsihd");
qvirtio_scsi_stop(qs);
}
diff --git a/tests/virtio-serial-test.c b/tests/virtio-serial-test.c
index b14d943..97f8f52 100644
--- a/tests/virtio-serial-test.c
+++ b/tests/virtio-serial-test.c
@@ -17,28 +17,9 @@ static void pci_nop(void)
static void hotplug(void)
{
- QDict *response;
-
- response = qmp("{\"execute\": \"device_add\","
- " \"arguments\": {"
- " \"driver\": \"virtserialport\","
- " \"id\": \"hp-port\""
- "}}");
-
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- QDECREF(response);
-
- response = qmp("{\"execute\": \"device_del\","
- " \"arguments\": {"
- " \"id\": \"hp-port\""
- "}}");
-
- g_assert(response);
- g_assert(!qdict_haskey(response, "error"));
- g_assert(qdict_haskey(response, "event"));
- g_assert(!strcmp(qdict_get_str(response, "event"), "DEVICE_DELETED"));
- QDECREF(response);
+ qtest_hot_plug_device("virtserialport", "hp-port", NULL);
+
+ qtest_hot_unplug_device("hp-port");
}
int main(int argc, char **argv)
--
1.8.3.1
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