[Intel-gfx] [PATCH i-g-t v2 00/16] tests/core_hotunplug: Fixes and enhancements

[Intel-gfx] [PATCH i-g-t v2 00/16] tests/core_hotunplug: Fixes and enhancements

[Janusz Krzysztofik]

Clean up the test code and unblock unbind variants.

@Michał: Since most v2 updates are trivial, I've preserved your
Reviewd-by: except for patch 11/16 "Follow failed subtests with health
checks" - please have a look and confirm if you are still OK with it.

Thanks,
Janusz

Janusz Krzysztofik (16):
  tests/core_hotunplug: Use igt_assert_fd()
  tests/core_hotunplug: Constify dev_bus_addr string
  tests/core_hotunplug: Consolidate duplicated debug messages
  tests/core_hotunplug: Assert successful device filter application
  tests/core_hotunplug: Fix missing newline
  tests/core_hotunplug: Maintain a single data structure instance
  tests/core_hotunplug: Pass errors via a data structure field
  tests/core_hotunplug: Handle device close errors
  tests/core_hotunplug: Prepare invariant data once per test run
  tests/core_hotunplug: Skip selectively on sysfs close errors
  tests/core_hotunplug: Follow failed subtests with health checks
  tests/core_hotunplug: Fail subtests on device close errors
  tests/core_hotunplug: Process return values of sysfs operations
  tests/core_hotunplug: Assert expected device presence/absence
  tests/core_hotunplug: Explicitly ignore unused return values
  tests/core_hotunplug: Un-blocklist *unbind* subtests

 tests/core_hotunplug.c       | 334 +++++++++++++++++++++--------------
 tests/intel-ci/blacklist.txt |   2 +-
 2 files changed, 204 insertions(+), 132 deletions(-)

-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 00/16] tests/core_hotunplug: Fixes and enhancements

[Janusz Krzysztofik]

Clean up the test code and unblock unbind variants.

@Michał: Since most v2 updates are trivial, I've preserved your
Reviewd-by: except for patch 11/16 "Follow failed subtests with health
checks" - please have a look and confirm if you are still OK with it.

Thanks,
Janusz

Janusz Krzysztofik (16):
  tests/core_hotunplug: Use igt_assert_fd()
  tests/core_hotunplug: Constify dev_bus_addr string
  tests/core_hotunplug: Consolidate duplicated debug messages
  tests/core_hotunplug: Assert successful device filter application
  tests/core_hotunplug: Fix missing newline
  tests/core_hotunplug: Maintain a single data structure instance
  tests/core_hotunplug: Pass errors via a data structure field
  tests/core_hotunplug: Handle device close errors
  tests/core_hotunplug: Prepare invariant data once per test run
  tests/core_hotunplug: Skip selectively on sysfs close errors
  tests/core_hotunplug: Follow failed subtests with health checks
  tests/core_hotunplug: Fail subtests on device close errors
  tests/core_hotunplug: Process return values of sysfs operations
  tests/core_hotunplug: Assert expected device presence/absence
  tests/core_hotunplug: Explicitly ignore unused return values
  tests/core_hotunplug: Un-blocklist *unbind* subtests

 tests/core_hotunplug.c       | 334 +++++++++++++++++++++--------------
 tests/intel-ci/blacklist.txt |   2 +-
 2 files changed, 204 insertions(+), 132 deletions(-)

-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 01/16] tests/core_hotunplug: Use igt_assert_fd()

[Janusz Krzysztofik]

There is a new library helper that asserts validity of open file
descriptors.  Use it instead of open coding.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index e03f3b945..7431346b1 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -57,7 +57,7 @@ static void prepare_for_unbind(struct hotunplug *priv, char *buf, int buflen)
 
 	priv->fd.sysfs_drv = openat(priv->fd.sysfs_dev, "device/driver",
 				    O_DIRECTORY);
-	igt_assert(priv->fd.sysfs_drv >= 0);
+	igt_assert_fd(priv->fd.sysfs_drv);
 
 	len = readlinkat(priv->fd.sysfs_dev, "device", buf, buflen - 1);
 	buf[len] = '\0';
@@ -72,10 +72,10 @@ static void prepare(struct hotunplug *priv, char *buf, int buflen)
 {
 	igt_debug("opening device\n");
 	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
-	igt_assert(priv->fd.drm >= 0);
+	igt_assert_fd(priv->fd.drm);
 
 	priv->fd.sysfs_dev = igt_sysfs_open(priv->fd.drm);
-	igt_assert(priv->fd.sysfs_dev >= 0);
+	igt_assert_fd(priv->fd.sysfs_dev);
 
 	if (buf) {
 		prepare_for_unbind(priv, buf, buflen);
@@ -83,7 +83,7 @@ static void prepare(struct hotunplug *priv, char *buf, int buflen)
 		/* prepare for bus rescan */
 		priv->fd.sysfs_bus = openat(priv->fd.sysfs_dev,
 					    "device/subsystem", O_DIRECTORY);
-		igt_assert(priv->fd.sysfs_bus >= 0);
+		igt_assert_fd(priv->fd.sysfs_bus);
 	}
 }
 
@@ -261,7 +261,7 @@ igt_main
 		 * a device file descriptor open for exit handler use.
 		 */
 		fd_drm = __drm_open_driver(DRIVER_ANY);
-		igt_assert(fd_drm >= 0);
+		igt_assert_fd(fd_drm);
 
 		if (is_i915_device(fd_drm))
 			igt_require_gem(fd_drm);
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] [PATCH i-g-t v2 02/16] tests/core_hotunplug: Constify dev_bus_addr string

[Janusz Krzysztofik]

Device bus address structure field is always initialized with a pointer
to a substring of the device sysfs path and never used for its
modification.  Declare it as a constant string.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 7431346b1..a4071f51e 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -44,7 +44,7 @@ struct hotunplug {
 		int sysfs_bus;
 		int sysfs_drv;
 	} fd;
-	char *dev_bus_addr;
+	const char *dev_bus_addr;
 };
 
 /* Helpers */
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 02/16] tests/core_hotunplug: Constify dev_bus_addr string

[Janusz Krzysztofik]

Device bus address structure field is always initialized with a pointer
to a substring of the device sysfs path and never used for its
modification.  Declare it as a constant string.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 7431346b1..a4071f51e 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -44,7 +44,7 @@ struct hotunplug {
 		int sysfs_bus;
 		int sysfs_drv;
 	} fd;
-	char *dev_bus_addr;
+	const char *dev_bus_addr;
 };
 
 /* Helpers */
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 03/16] tests/core_hotunplug: Consolidate duplicated debug messages

[Janusz Krzysztofik]

Some debug messages which designate specific test operations, or their
greater parts at least, sound always the same, no matter which subtest
they are called from.  Emit them, possibly updated with subtest
specified modifiers, from inside respective helpers instead of
duplicating them in subtest bodies.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index a4071f51e..557f9e3fa 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -90,8 +90,11 @@ static void prepare(struct hotunplug *priv, char *buf, int buflen)
 static const char *failure;
 
 /* Unbind the driver from the device */
-static void driver_unbind(int fd_sysfs_drv, const char *dev_bus_addr)
+static void driver_unbind(int fd_sysfs_drv, const char *dev_bus_addr,
+			  const char *prefix)
 {
+	igt_debug("%sunbinding the driver from the device\n", prefix);
+
 	failure = "Driver unbind timeout!";
 	igt_set_timeout(60, failure);
 	igt_sysfs_set(fd_sysfs_drv, "unbind", dev_bus_addr);
@@ -104,6 +107,8 @@ static void driver_unbind(int fd_sysfs_drv, const char *dev_bus_addr)
 /* Re-bind the driver to the device */
 static void driver_bind(int fd_sysfs_drv, const char *dev_bus_addr)
 {
+	igt_debug("rebinding the driver to the device\n");
+
 	failure = "Driver re-bind timeout!";
 	igt_set_timeout(60, failure);
 	igt_sysfs_set(fd_sysfs_drv, "bind", dev_bus_addr);
@@ -114,8 +119,10 @@ static void driver_bind(int fd_sysfs_drv, const char *dev_bus_addr)
 }
 
 /* Remove (virtually unplug) the device from its bus */
-static void device_unplug(int fd_sysfs_dev)
+static void device_unplug(int fd_sysfs_dev, const char *prefix)
 {
+	igt_debug("%sunplugging the device\n", prefix);
+
 	failure = "Device unplug timeout!";
 	igt_set_timeout(60, failure);
 	igt_sysfs_set(fd_sysfs_dev, "device/remove", "1");
@@ -128,6 +135,8 @@ static void device_unplug(int fd_sysfs_dev)
 /* Re-discover the device by rescanning its bus */
 static void bus_rescan(int fd_sysfs_bus)
 {
+	igt_debug("recovering the device\n");
+
 	failure = "Bus rescan timeout!";
 	igt_set_timeout(60, failure);
 	igt_sysfs_set(fd_sysfs_bus, "rescan", "1");
@@ -184,10 +193,8 @@ static void unbind_rebind(void)
 	igt_debug("closing the device\n");
 	close(priv.fd.drm);
 
-	igt_debug("unbinding the driver from the device\n");
-	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr);
+	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr, "");
 
-	igt_debug("rebinding the driver to the device\n");
 	driver_bind(priv.fd.sysfs_drv, priv.dev_bus_addr);
 
 	healthcheck();
@@ -202,10 +209,8 @@ static void unplug_rescan(void)
 	igt_debug("closing the device\n");
 	close(priv.fd.drm);
 
-	igt_debug("unplugging the device\n");
-	device_unplug(priv.fd.sysfs_dev);
+	device_unplug(priv.fd.sysfs_dev, "");
 
-	igt_debug("recovering the device\n");
 	bus_rescan(priv.fd.sysfs_bus);
 
 	healthcheck();
@@ -218,10 +223,8 @@ static void hotunbind_lateclose(void)
 
 	prepare(&priv, buf, sizeof(buf));
 
-	igt_debug("hot unbinding the driver from the device\n");
-	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr);
+	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr, "hot ");
 
-	igt_debug("rebinding the driver to the device\n");
 	driver_bind(priv.fd.sysfs_drv, priv.dev_bus_addr);
 
 	igt_debug("late closing the unbound device instance\n");
@@ -236,10 +239,8 @@ static void hotunplug_lateclose(void)
 
 	prepare(&priv, NULL, 0);
 
-	igt_debug("hot unplugging the device\n");
-	device_unplug(priv.fd.sysfs_dev);
+	device_unplug(priv.fd.sysfs_dev, "hot ");
 
-	igt_debug("recovering the device\n");
 	bus_rescan(priv.fd.sysfs_bus);
 
 	igt_debug("late closing the removed device instance\n");
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 03/16] tests/core_hotunplug: Consolidate duplicated debug messages

[Janusz Krzysztofik]

Some debug messages which designate specific test operations, or their
greater parts at least, sound always the same, no matter which subtest
they are called from.  Emit them, possibly updated with subtest
specified modifiers, from inside respective helpers instead of
duplicating them in subtest bodies.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index a4071f51e..557f9e3fa 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -90,8 +90,11 @@ static void prepare(struct hotunplug *priv, char *buf, int buflen)
 static const char *failure;
 
 /* Unbind the driver from the device */
-static void driver_unbind(int fd_sysfs_drv, const char *dev_bus_addr)
+static void driver_unbind(int fd_sysfs_drv, const char *dev_bus_addr,
+			  const char *prefix)
 {
+	igt_debug("%sunbinding the driver from the device\n", prefix);
+
 	failure = "Driver unbind timeout!";
 	igt_set_timeout(60, failure);
 	igt_sysfs_set(fd_sysfs_drv, "unbind", dev_bus_addr);
@@ -104,6 +107,8 @@ static void driver_unbind(int fd_sysfs_drv, const char *dev_bus_addr)
 /* Re-bind the driver to the device */
 static void driver_bind(int fd_sysfs_drv, const char *dev_bus_addr)
 {
+	igt_debug("rebinding the driver to the device\n");
+
 	failure = "Driver re-bind timeout!";
 	igt_set_timeout(60, failure);
 	igt_sysfs_set(fd_sysfs_drv, "bind", dev_bus_addr);
@@ -114,8 +119,10 @@ static void driver_bind(int fd_sysfs_drv, const char *dev_bus_addr)
 }
 
 /* Remove (virtually unplug) the device from its bus */
-static void device_unplug(int fd_sysfs_dev)
+static void device_unplug(int fd_sysfs_dev, const char *prefix)
 {
+	igt_debug("%sunplugging the device\n", prefix);
+
 	failure = "Device unplug timeout!";
 	igt_set_timeout(60, failure);
 	igt_sysfs_set(fd_sysfs_dev, "device/remove", "1");
@@ -128,6 +135,8 @@ static void device_unplug(int fd_sysfs_dev)
 /* Re-discover the device by rescanning its bus */
 static void bus_rescan(int fd_sysfs_bus)
 {
+	igt_debug("recovering the device\n");
+
 	failure = "Bus rescan timeout!";
 	igt_set_timeout(60, failure);
 	igt_sysfs_set(fd_sysfs_bus, "rescan", "1");
@@ -184,10 +193,8 @@ static void unbind_rebind(void)
 	igt_debug("closing the device\n");
 	close(priv.fd.drm);
 
-	igt_debug("unbinding the driver from the device\n");
-	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr);
+	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr, "");
 
-	igt_debug("rebinding the driver to the device\n");
 	driver_bind(priv.fd.sysfs_drv, priv.dev_bus_addr);
 
 	healthcheck();
@@ -202,10 +209,8 @@ static void unplug_rescan(void)
 	igt_debug("closing the device\n");
 	close(priv.fd.drm);
 
-	igt_debug("unplugging the device\n");
-	device_unplug(priv.fd.sysfs_dev);
+	device_unplug(priv.fd.sysfs_dev, "");
 
-	igt_debug("recovering the device\n");
 	bus_rescan(priv.fd.sysfs_bus);
 
 	healthcheck();
@@ -218,10 +223,8 @@ static void hotunbind_lateclose(void)
 
 	prepare(&priv, buf, sizeof(buf));
 
-	igt_debug("hot unbinding the driver from the device\n");
-	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr);
+	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr, "hot ");
 
-	igt_debug("rebinding the driver to the device\n");
 	driver_bind(priv.fd.sysfs_drv, priv.dev_bus_addr);
 
 	igt_debug("late closing the unbound device instance\n");
@@ -236,10 +239,8 @@ static void hotunplug_lateclose(void)
 
 	prepare(&priv, NULL, 0);
 
-	igt_debug("hot unplugging the device\n");
-	device_unplug(priv.fd.sysfs_dev);
+	device_unplug(priv.fd.sysfs_dev, "hot ");
 
-	igt_debug("recovering the device\n");
 	bus_rescan(priv.fd.sysfs_bus);
 
 	igt_debug("late closing the removed device instance\n");
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 04/16] tests/core_hotunplug: Assert successful device filter application

[Janusz Krzysztofik]

Return value of igt_device_filter_add() representing a number of
successfully installed device filters is now ignored.  Fail if not 1.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 557f9e3fa..6ceb325ad 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -178,7 +178,7 @@ static void set_filter_from_device(int fd)
 	igt_assert(realpath(path, dst));
 
 	igt_device_filter_free_all();
-	igt_device_filter_add(filter);
+	igt_assert_eq(igt_device_filter_add(filter), 1);
 }
 
 /* Subtests */
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 04/16] tests/core_hotunplug: Assert successful device filter application

[Janusz Krzysztofik]

Return value of igt_device_filter_add() representing a number of
successfully installed device filters is now ignored.  Fail if not 1.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 557f9e3fa..6ceb325ad 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -178,7 +178,7 @@ static void set_filter_from_device(int fd)
 	igt_assert(realpath(path, dst));
 
 	igt_device_filter_free_all();
-	igt_device_filter_add(filter);
+	igt_assert_eq(igt_device_filter_add(filter), 1);
 }
 
 /* Subtests */
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 05/16] tests/core_hotunplug: Fix missing newline

[Janusz Krzysztofik]

A trailing newline is missing from one of fatal error messages, fix it.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 6ceb325ad..cac88c2f3 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -155,7 +155,7 @@ static void healthcheck(void)
 
 	igt_debug("reopening the device\n");
 	fd_drm = __drm_open_driver(DRIVER_ANY);
-	igt_abort_on_f(fd_drm < 0, "Device reopen failure");
+	igt_abort_on_f(fd_drm < 0, "Device reopen failure\n");
 
 	if (is_i915_device(fd_drm)) {
 		failure = "GEM failure";
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] [PATCH i-g-t v2 06/16] tests/core_hotunplug: Maintain a single data structure instance

[Janusz Krzysztofik]

The following changes to the test are planned:
- avoid global variables,
- skip subtest after device close errors,
- prepare invariant data only once per test run,
- move device health checks to igt_fixture sections,
- try to recover from subtest failures instead of aborting.
For that to be possible, maintain a single instance of hotunplug
structure at igt_main level and pass it down to subtests.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 56 ++++++++++++++++++++----------------------
 1 file changed, 26 insertions(+), 30 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index cac88c2f3..0e61da2d0 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -183,68 +183,62 @@ static void set_filter_from_device(int fd)
 
 /* Subtests */
 
-static void unbind_rebind(void)
+static void unbind_rebind(struct hotunplug *priv)
 {
-	struct hotunplug priv;
 	char buf[PATH_MAX];
 
-	prepare(&priv, buf, sizeof(buf));
+	prepare(priv, buf, sizeof(buf));
 
 	igt_debug("closing the device\n");
-	close(priv.fd.drm);
+	close(priv->fd.drm);
 
-	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr, "");
+	driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "");
 
-	driver_bind(priv.fd.sysfs_drv, priv.dev_bus_addr);
+	driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
 
 	healthcheck();
 }
 
-static void unplug_rescan(void)
+static void unplug_rescan(struct hotunplug *priv)
 {
-	struct hotunplug priv;
-
-	prepare(&priv, NULL, 0);
+	prepare(priv, NULL, 0);
 
 	igt_debug("closing the device\n");
-	close(priv.fd.drm);
+	close(priv->fd.drm);
 
-	device_unplug(priv.fd.sysfs_dev, "");
+	device_unplug(priv->fd.sysfs_dev, "");
 
-	bus_rescan(priv.fd.sysfs_bus);
+	bus_rescan(priv->fd.sysfs_bus);
 
 	healthcheck();
 }
 
-static void hotunbind_lateclose(void)
+static void hotunbind_lateclose(struct hotunplug *priv)
 {
-	struct hotunplug priv;
 	char buf[PATH_MAX];
 
-	prepare(&priv, buf, sizeof(buf));
+	prepare(priv, buf, sizeof(buf));
 
-	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr, "hot ");
+	driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "hot ");
 
-	driver_bind(priv.fd.sysfs_drv, priv.dev_bus_addr);
+	driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
 
 	igt_debug("late closing the unbound device instance\n");
-	close(priv.fd.drm);
+	close(priv->fd.drm);
 
 	healthcheck();
 }
 
-static void hotunplug_lateclose(void)
+static void hotunplug_lateclose(struct hotunplug *priv)
 {
-	struct hotunplug priv;
-
-	prepare(&priv, NULL, 0);
+	prepare(priv, NULL, 0);
 
-	device_unplug(priv.fd.sysfs_dev, "hot ");
+	device_unplug(priv->fd.sysfs_dev, "hot ");
 
-	bus_rescan(priv.fd.sysfs_bus);
+	bus_rescan(priv->fd.sysfs_bus);
 
 	igt_debug("late closing the removed device instance\n");
-	close(priv.fd.drm);
+	close(priv->fd.drm);
 
 	healthcheck();
 }
@@ -253,6 +247,8 @@ static void hotunplug_lateclose(void)
 
 igt_main
 {
+	struct hotunplug priv;
+
 	igt_fixture {
 		int fd_drm;
 
@@ -275,28 +271,28 @@ igt_main
 
 	igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
 	igt_subtest("unbind-rebind")
-		unbind_rebind();
+		unbind_rebind(&priv);
 
 	igt_fixture
 		igt_abort_on_f(failure, "%s\n", failure);
 
 	igt_describe("Check if a device believed to be closed can be cleanly unplugged");
 	igt_subtest("unplug-rescan")
-		unplug_rescan();
+		unplug_rescan(&priv);
 
 	igt_fixture
 		igt_abort_on_f(failure, "%s\n", failure);
 
 	igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
 	igt_subtest("hotunbind-lateclose")
-		hotunbind_lateclose();
+		hotunbind_lateclose(&priv);
 
 	igt_fixture
 		igt_abort_on_f(failure, "%s\n", failure);
 
 	igt_describe("Check if a still open device can be cleanly unplugged, then released");
 	igt_subtest("hotunplug-lateclose")
-		hotunplug_lateclose();
+		hotunplug_lateclose(&priv);
 
 	igt_fixture
 		igt_abort_on_f(failure, "%s\n", failure);
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 06/16] tests/core_hotunplug: Maintain a single data structure instance

[Janusz Krzysztofik]

The following changes to the test are planned:
- avoid global variables,
- skip subtest after device close errors,
- prepare invariant data only once per test run,
- move device health checks to igt_fixture sections,
- try to recover from subtest failures instead of aborting.
For that to be possible, maintain a single instance of hotunplug
structure at igt_main level and pass it down to subtests.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 56 ++++++++++++++++++++----------------------
 1 file changed, 26 insertions(+), 30 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index cac88c2f3..0e61da2d0 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -183,68 +183,62 @@ static void set_filter_from_device(int fd)
 
 /* Subtests */
 
-static void unbind_rebind(void)
+static void unbind_rebind(struct hotunplug *priv)
 {
-	struct hotunplug priv;
 	char buf[PATH_MAX];
 
-	prepare(&priv, buf, sizeof(buf));
+	prepare(priv, buf, sizeof(buf));
 
 	igt_debug("closing the device\n");
-	close(priv.fd.drm);
+	close(priv->fd.drm);
 
-	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr, "");
+	driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "");
 
-	driver_bind(priv.fd.sysfs_drv, priv.dev_bus_addr);
+	driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
 
 	healthcheck();
 }
 
-static void unplug_rescan(void)
+static void unplug_rescan(struct hotunplug *priv)
 {
-	struct hotunplug priv;
-
-	prepare(&priv, NULL, 0);
+	prepare(priv, NULL, 0);
 
 	igt_debug("closing the device\n");
-	close(priv.fd.drm);
+	close(priv->fd.drm);
 
-	device_unplug(priv.fd.sysfs_dev, "");
+	device_unplug(priv->fd.sysfs_dev, "");
 
-	bus_rescan(priv.fd.sysfs_bus);
+	bus_rescan(priv->fd.sysfs_bus);
 
 	healthcheck();
 }
 
-static void hotunbind_lateclose(void)
+static void hotunbind_lateclose(struct hotunplug *priv)
 {
-	struct hotunplug priv;
 	char buf[PATH_MAX];
 
-	prepare(&priv, buf, sizeof(buf));
+	prepare(priv, buf, sizeof(buf));
 
-	driver_unbind(priv.fd.sysfs_drv, priv.dev_bus_addr, "hot ");
+	driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "hot ");
 
-	driver_bind(priv.fd.sysfs_drv, priv.dev_bus_addr);
+	driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
 
 	igt_debug("late closing the unbound device instance\n");
-	close(priv.fd.drm);
+	close(priv->fd.drm);
 
 	healthcheck();
 }
 
-static void hotunplug_lateclose(void)
+static void hotunplug_lateclose(struct hotunplug *priv)
 {
-	struct hotunplug priv;
-
-	prepare(&priv, NULL, 0);
+	prepare(priv, NULL, 0);
 
-	device_unplug(priv.fd.sysfs_dev, "hot ");
+	device_unplug(priv->fd.sysfs_dev, "hot ");
 
-	bus_rescan(priv.fd.sysfs_bus);
+	bus_rescan(priv->fd.sysfs_bus);
 
 	igt_debug("late closing the removed device instance\n");
-	close(priv.fd.drm);
+	close(priv->fd.drm);
 
 	healthcheck();
 }
@@ -253,6 +247,8 @@ static void hotunplug_lateclose(void)
 
 igt_main
 {
+	struct hotunplug priv;
+
 	igt_fixture {
 		int fd_drm;
 
@@ -275,28 +271,28 @@ igt_main
 
 	igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
 	igt_subtest("unbind-rebind")
-		unbind_rebind();
+		unbind_rebind(&priv);
 
 	igt_fixture
 		igt_abort_on_f(failure, "%s\n", failure);
 
 	igt_describe("Check if a device believed to be closed can be cleanly unplugged");
 	igt_subtest("unplug-rescan")
-		unplug_rescan();
+		unplug_rescan(&priv);
 
 	igt_fixture
 		igt_abort_on_f(failure, "%s\n", failure);
 
 	igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
 	igt_subtest("hotunbind-lateclose")
-		hotunbind_lateclose();
+		hotunbind_lateclose(&priv);
 
 	igt_fixture
 		igt_abort_on_f(failure, "%s\n", failure);
 
 	igt_describe("Check if a still open device can be cleanly unplugged, then released");
 	igt_subtest("hotunplug-lateclose")
-		hotunplug_lateclose();
+		hotunplug_lateclose(&priv);
 
 	igt_fixture
 		igt_abort_on_f(failure, "%s\n", failure);
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 07/16] tests/core_hotunplug: Pass errors via a data structure field

[Janusz Krzysztofik]

A pointer to fatal error messages can be passed around via hotunplug
structure, no need to declare it as global.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 92 +++++++++++++++++++++---------------------
 1 file changed, 45 insertions(+), 47 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 0e61da2d0..6070b7d95 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -45,6 +45,7 @@ struct hotunplug {
 		int sysfs_drv;
 	} fd;
 	const char *dev_bus_addr;
+	const char *failure;
 };
 
 /* Helpers */
@@ -87,66 +88,63 @@ static void prepare(struct hotunplug *priv, char *buf, int buflen)
 	}
 }
 
-static const char *failure;
-
 /* Unbind the driver from the device */
-static void driver_unbind(int fd_sysfs_drv, const char *dev_bus_addr,
-			  const char *prefix)
+static void driver_unbind(struct hotunplug *priv, const char *prefix)
 {
 	igt_debug("%sunbinding the driver from the device\n", prefix);
 
-	failure = "Driver unbind timeout!";
-	igt_set_timeout(60, failure);
-	igt_sysfs_set(fd_sysfs_drv, "unbind", dev_bus_addr);
+	priv->failure = "Driver unbind timeout!";
+	igt_set_timeout(60, priv->failure);
+	igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
 	igt_reset_timeout();
-	failure = NULL;
+	priv->failure = NULL;
 
-	/* don't close fd_sysfs_drv, it will be used for driver rebinding */
+	/* don't close fd.sysfs_drv, it will be used for driver rebinding */
 }
 
 /* Re-bind the driver to the device */
-static void driver_bind(int fd_sysfs_drv, const char *dev_bus_addr)
+static void driver_bind(struct hotunplug *priv)
 {
 	igt_debug("rebinding the driver to the device\n");
 
-	failure = "Driver re-bind timeout!";
-	igt_set_timeout(60, failure);
-	igt_sysfs_set(fd_sysfs_drv, "bind", dev_bus_addr);
+	priv->failure = "Driver re-bind timeout!";
+	igt_set_timeout(60, priv->failure);
+	igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
 	igt_reset_timeout();
-	failure = NULL;
+	priv->failure = NULL;
 
-	close(fd_sysfs_drv);
+	close(priv->fd.sysfs_drv);
 }
 
 /* Remove (virtually unplug) the device from its bus */
-static void device_unplug(int fd_sysfs_dev, const char *prefix)
+static void device_unplug(struct hotunplug *priv, const char *prefix)
 {
 	igt_debug("%sunplugging the device\n", prefix);
 
-	failure = "Device unplug timeout!";
-	igt_set_timeout(60, failure);
-	igt_sysfs_set(fd_sysfs_dev, "device/remove", "1");
+	priv->failure = "Device unplug timeout!";
+	igt_set_timeout(60, priv->failure);
+	igt_sysfs_set(priv->fd.sysfs_dev, "device/remove", "1");
 	igt_reset_timeout();
-	failure = NULL;
+	priv->failure = NULL;
 
-	close(fd_sysfs_dev);
+	close(priv->fd.sysfs_dev);
 }
 
 /* Re-discover the device by rescanning its bus */
-static void bus_rescan(int fd_sysfs_bus)
+static void bus_rescan(struct hotunplug *priv)
 {
 	igt_debug("recovering the device\n");
 
-	failure = "Bus rescan timeout!";
-	igt_set_timeout(60, failure);
-	igt_sysfs_set(fd_sysfs_bus, "rescan", "1");
+	priv->failure = "Bus rescan timeout!";
+	igt_set_timeout(60, priv->failure);
+	igt_sysfs_set(priv->fd.sysfs_bus, "rescan", "1");
 	igt_reset_timeout();
-	failure = NULL;
+	priv->failure = NULL;
 
-	close(fd_sysfs_bus);
+	close(priv->fd.sysfs_bus);
 }
 
-static void healthcheck(void)
+static void healthcheck(struct hotunplug *priv)
 {
 	int fd_drm;
 
@@ -158,9 +156,9 @@ static void healthcheck(void)
 	igt_abort_on_f(fd_drm < 0, "Device reopen failure\n");
 
 	if (is_i915_device(fd_drm)) {
-		failure = "GEM failure";
+		priv->failure = "GEM failure";
 		igt_require_gem(fd_drm);
-		failure = NULL;
+		priv->failure = NULL;
 	}
 
 	close(fd_drm);
@@ -192,11 +190,11 @@ static void unbind_rebind(struct hotunplug *priv)
 	igt_debug("closing the device\n");
 	close(priv->fd.drm);
 
-	driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "");
+	driver_unbind(priv, "");
 
-	driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
+	driver_bind(priv);
 
-	healthcheck();
+	healthcheck(priv);
 }
 
 static void unplug_rescan(struct hotunplug *priv)
@@ -206,11 +204,11 @@ static void unplug_rescan(struct hotunplug *priv)
 	igt_debug("closing the device\n");
 	close(priv->fd.drm);
 
-	device_unplug(priv->fd.sysfs_dev, "");
+	device_unplug(priv, "");
 
-	bus_rescan(priv->fd.sysfs_bus);
+	bus_rescan(priv);
 
-	healthcheck();
+	healthcheck(priv);
 }
 
 static void hotunbind_lateclose(struct hotunplug *priv)
@@ -219,35 +217,35 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 
 	prepare(priv, buf, sizeof(buf));
 
-	driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "hot ");
+	driver_unbind(priv, "hot ");
 
-	driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
+	driver_bind(priv);
 
 	igt_debug("late closing the unbound device instance\n");
 	close(priv->fd.drm);
 
-	healthcheck();
+	healthcheck(priv);
 }
 
 static void hotunplug_lateclose(struct hotunplug *priv)
 {
 	prepare(priv, NULL, 0);
 
-	device_unplug(priv->fd.sysfs_dev, "hot ");
+	device_unplug(priv, "hot ");
 
-	bus_rescan(priv->fd.sysfs_bus);
+	bus_rescan(priv);
 
 	igt_debug("late closing the removed device instance\n");
 	close(priv->fd.drm);
 
-	healthcheck();
+	healthcheck(priv);
 }
 
 /* Main */
 
 igt_main
 {
-	struct hotunplug priv;
+	struct hotunplug priv = { .failure = NULL, };
 
 	igt_fixture {
 		int fd_drm;
@@ -274,26 +272,26 @@ igt_main
 		unbind_rebind(&priv);
 
 	igt_fixture
-		igt_abort_on_f(failure, "%s\n", failure);
+		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
 
 	igt_describe("Check if a device believed to be closed can be cleanly unplugged");
 	igt_subtest("unplug-rescan")
 		unplug_rescan(&priv);
 
 	igt_fixture
-		igt_abort_on_f(failure, "%s\n", failure);
+		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
 
 	igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
 	igt_subtest("hotunbind-lateclose")
 		hotunbind_lateclose(&priv);
 
 	igt_fixture
-		igt_abort_on_f(failure, "%s\n", failure);
+		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
 
 	igt_describe("Check if a still open device can be cleanly unplugged, then released");
 	igt_subtest("hotunplug-lateclose")
 		hotunplug_lateclose(&priv);
 
 	igt_fixture
-		igt_abort_on_f(failure, "%s\n", failure);
+		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
 }
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 07/16] tests/core_hotunplug: Pass errors via a data structure field

[Janusz Krzysztofik]

A pointer to fatal error messages can be passed around via hotunplug
structure, no need to declare it as global.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 92 +++++++++++++++++++++---------------------
 1 file changed, 45 insertions(+), 47 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 0e61da2d0..6070b7d95 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -45,6 +45,7 @@ struct hotunplug {
 		int sysfs_drv;
 	} fd;
 	const char *dev_bus_addr;
+	const char *failure;
 };
 
 /* Helpers */
@@ -87,66 +88,63 @@ static void prepare(struct hotunplug *priv, char *buf, int buflen)
 	}
 }
 
-static const char *failure;
-
 /* Unbind the driver from the device */
-static void driver_unbind(int fd_sysfs_drv, const char *dev_bus_addr,
-			  const char *prefix)
+static void driver_unbind(struct hotunplug *priv, const char *prefix)
 {
 	igt_debug("%sunbinding the driver from the device\n", prefix);
 
-	failure = "Driver unbind timeout!";
-	igt_set_timeout(60, failure);
-	igt_sysfs_set(fd_sysfs_drv, "unbind", dev_bus_addr);
+	priv->failure = "Driver unbind timeout!";
+	igt_set_timeout(60, priv->failure);
+	igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
 	igt_reset_timeout();
-	failure = NULL;
+	priv->failure = NULL;
 
-	/* don't close fd_sysfs_drv, it will be used for driver rebinding */
+	/* don't close fd.sysfs_drv, it will be used for driver rebinding */
 }
 
 /* Re-bind the driver to the device */
-static void driver_bind(int fd_sysfs_drv, const char *dev_bus_addr)
+static void driver_bind(struct hotunplug *priv)
 {
 	igt_debug("rebinding the driver to the device\n");
 
-	failure = "Driver re-bind timeout!";
-	igt_set_timeout(60, failure);
-	igt_sysfs_set(fd_sysfs_drv, "bind", dev_bus_addr);
+	priv->failure = "Driver re-bind timeout!";
+	igt_set_timeout(60, priv->failure);
+	igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
 	igt_reset_timeout();
-	failure = NULL;
+	priv->failure = NULL;
 
-	close(fd_sysfs_drv);
+	close(priv->fd.sysfs_drv);
 }
 
 /* Remove (virtually unplug) the device from its bus */
-static void device_unplug(int fd_sysfs_dev, const char *prefix)
+static void device_unplug(struct hotunplug *priv, const char *prefix)
 {
 	igt_debug("%sunplugging the device\n", prefix);
 
-	failure = "Device unplug timeout!";
-	igt_set_timeout(60, failure);
-	igt_sysfs_set(fd_sysfs_dev, "device/remove", "1");
+	priv->failure = "Device unplug timeout!";
+	igt_set_timeout(60, priv->failure);
+	igt_sysfs_set(priv->fd.sysfs_dev, "device/remove", "1");
 	igt_reset_timeout();
-	failure = NULL;
+	priv->failure = NULL;
 
-	close(fd_sysfs_dev);
+	close(priv->fd.sysfs_dev);
 }
 
 /* Re-discover the device by rescanning its bus */
-static void bus_rescan(int fd_sysfs_bus)
+static void bus_rescan(struct hotunplug *priv)
 {
 	igt_debug("recovering the device\n");
 
-	failure = "Bus rescan timeout!";
-	igt_set_timeout(60, failure);
-	igt_sysfs_set(fd_sysfs_bus, "rescan", "1");
+	priv->failure = "Bus rescan timeout!";
+	igt_set_timeout(60, priv->failure);
+	igt_sysfs_set(priv->fd.sysfs_bus, "rescan", "1");
 	igt_reset_timeout();
-	failure = NULL;
+	priv->failure = NULL;
 
-	close(fd_sysfs_bus);
+	close(priv->fd.sysfs_bus);
 }
 
-static void healthcheck(void)
+static void healthcheck(struct hotunplug *priv)
 {
 	int fd_drm;
 
@@ -158,9 +156,9 @@ static void healthcheck(void)
 	igt_abort_on_f(fd_drm < 0, "Device reopen failure\n");
 
 	if (is_i915_device(fd_drm)) {
-		failure = "GEM failure";
+		priv->failure = "GEM failure";
 		igt_require_gem(fd_drm);
-		failure = NULL;
+		priv->failure = NULL;
 	}
 
 	close(fd_drm);
@@ -192,11 +190,11 @@ static void unbind_rebind(struct hotunplug *priv)
 	igt_debug("closing the device\n");
 	close(priv->fd.drm);
 
-	driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "");
+	driver_unbind(priv, "");
 
-	driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
+	driver_bind(priv);
 
-	healthcheck();
+	healthcheck(priv);
 }
 
 static void unplug_rescan(struct hotunplug *priv)
@@ -206,11 +204,11 @@ static void unplug_rescan(struct hotunplug *priv)
 	igt_debug("closing the device\n");
 	close(priv->fd.drm);
 
-	device_unplug(priv->fd.sysfs_dev, "");
+	device_unplug(priv, "");
 
-	bus_rescan(priv->fd.sysfs_bus);
+	bus_rescan(priv);
 
-	healthcheck();
+	healthcheck(priv);
 }
 
 static void hotunbind_lateclose(struct hotunplug *priv)
@@ -219,35 +217,35 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 
 	prepare(priv, buf, sizeof(buf));
 
-	driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "hot ");
+	driver_unbind(priv, "hot ");
 
-	driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
+	driver_bind(priv);
 
 	igt_debug("late closing the unbound device instance\n");
 	close(priv->fd.drm);
 
-	healthcheck();
+	healthcheck(priv);
 }
 
 static void hotunplug_lateclose(struct hotunplug *priv)
 {
 	prepare(priv, NULL, 0);
 
-	device_unplug(priv->fd.sysfs_dev, "hot ");
+	device_unplug(priv, "hot ");
 
-	bus_rescan(priv->fd.sysfs_bus);
+	bus_rescan(priv);
 
 	igt_debug("late closing the removed device instance\n");
 	close(priv->fd.drm);
 
-	healthcheck();
+	healthcheck(priv);
 }
 
 /* Main */
 
 igt_main
 {
-	struct hotunplug priv;
+	struct hotunplug priv = { .failure = NULL, };
 
 	igt_fixture {
 		int fd_drm;
@@ -274,26 +272,26 @@ igt_main
 		unbind_rebind(&priv);
 
 	igt_fixture
-		igt_abort_on_f(failure, "%s\n", failure);
+		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
 
 	igt_describe("Check if a device believed to be closed can be cleanly unplugged");
 	igt_subtest("unplug-rescan")
 		unplug_rescan(&priv);
 
 	igt_fixture
-		igt_abort_on_f(failure, "%s\n", failure);
+		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
 
 	igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
 	igt_subtest("hotunbind-lateclose")
 		hotunbind_lateclose(&priv);
 
 	igt_fixture
-		igt_abort_on_f(failure, "%s\n", failure);
+		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
 
 	igt_describe("Check if a still open device can be cleanly unplugged, then released");
 	igt_subtest("hotunplug-lateclose")
 		hotunplug_lateclose(&priv);
 
 	igt_fixture
-		igt_abort_on_f(failure, "%s\n", failure);
+		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
 }
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 08/16] tests/core_hotunplug: Handle device close errors

[Janusz Krzysztofik]

The test now ignores device close errors.  Those errors are believed to
have no influence on device health so there is no need to process them
the same way as we mostly do on errors, i.e., notify CI about a problem
via igt_abort.  However, those errors may indicate issues with the test
itself.  Moreover, impact of those errors on operations performed by
subtests, like driver unbind or device remove, should be perceived as
undefined.  Then, we should fail as soon as a device or device sysfs
node close error occurs and also skip subsequent subtests.  However,
once a driver unbind or device unplug operation has been attempted by a
subtest, we can't just fail without checking the device health.

When in a subtest, store results of device close operations for future
reference.  Reuse file descriptor fields of the hotunplug structure for
that.  Unless in between of a driver remove or device unplug operation
and a successful device health check, fail current test section right
after a device close error occurs, warn otherwise.  If still running,
examine device file descriptor fields in subsequent igt_fixture
sections and skip on errors.

v2: Fix a typo in post_healthcheck function name,
  - rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 61 ++++++++++++++++++++++++++++++++----------
 1 file changed, 47 insertions(+), 14 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 6070b7d95..ffba32568 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -43,13 +43,22 @@ struct hotunplug {
 		int sysfs_dev;
 		int sysfs_bus;
 		int sysfs_drv;
-	} fd;
+	} fd;	/* >= 0: valid fd, == -1: closed, < -1: close failed */
 	const char *dev_bus_addr;
 	const char *failure;
 };
 
 /* Helpers */
 
+static int local_close(int fd)
+{
+	errno = 0;
+	if (close(fd))	/* close failure - return -errno (never -1) */
+		return -errno;
+
+	return -1;	/* success - return 'closed' */
+}
+
 static void prepare_for_unbind(struct hotunplug *priv, char *buf, int buflen)
 {
 	int len;
@@ -66,7 +75,9 @@ static void prepare_for_unbind(struct hotunplug *priv, char *buf, int buflen)
 	igt_assert(priv->dev_bus_addr++);
 
 	/* sysfs_dev no longer needed */
-	close(priv->fd.sysfs_dev);
+	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
+	igt_assert_f(priv->fd.sysfs_dev == -1,
+		     "Device sysfs node close failed\n");
 }
 
 static void prepare(struct hotunplug *priv, char *buf, int buflen)
@@ -127,7 +138,9 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
 	igt_reset_timeout();
 	priv->failure = NULL;
 
-	close(priv->fd.sysfs_dev);
+	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
+	igt_warn_on_f(priv->fd.sysfs_dev != -1,
+		      "Device sysfs node close failed\n");
 }
 
 /* Re-discover the device by rescanning its bus */
@@ -146,6 +159,7 @@ static void bus_rescan(struct hotunplug *priv)
 
 static void healthcheck(struct hotunplug *priv)
 {
+	/* preserve error code potentially stored before in priv->fd.drm */
 	int fd_drm;
 
 	/* device name may have changed, rebuild IGT device list */
@@ -161,7 +175,19 @@ static void healthcheck(struct hotunplug *priv)
 		priv->failure = NULL;
 	}
 
-	close(fd_drm);
+	fd_drm = local_close(fd_drm);
+	if (priv->fd.drm == -1)
+		priv->fd.drm = fd_drm;
+	igt_assert_f(fd_drm == -1, "Device close failed\n");
+}
+
+static void post_healthcheck(struct hotunplug *priv)
+{
+	igt_abort_on_f(priv->failure, "%s\n", priv->failure);
+
+	igt_require_f(priv->fd.drm == -1, "Device not closed properly\n");
+	igt_require_f(priv->fd.sysfs_dev == -1,
+		      "Device sysfs node not closed properly\n");
 }
 
 static void set_filter_from_device(int fd)
@@ -188,7 +214,8 @@ static void unbind_rebind(struct hotunplug *priv)
 	prepare(priv, buf, sizeof(buf));
 
 	igt_debug("closing the device\n");
-	close(priv->fd.drm);
+	priv->fd.drm = local_close(priv->fd.drm);
+	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
 
 	driver_unbind(priv, "");
 
@@ -202,7 +229,8 @@ static void unplug_rescan(struct hotunplug *priv)
 	prepare(priv, NULL, 0);
 
 	igt_debug("closing the device\n");
-	close(priv->fd.drm);
+	priv->fd.drm = local_close(priv->fd.drm);
+	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
 
 	device_unplug(priv, "");
 
@@ -222,7 +250,8 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 	driver_bind(priv);
 
 	igt_debug("late closing the unbound device instance\n");
-	close(priv->fd.drm);
+	priv->fd.drm = local_close(priv->fd.drm);
+	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
 
 	healthcheck(priv);
 }
@@ -236,7 +265,8 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 	bus_rescan(priv);
 
 	igt_debug("late closing the removed device instance\n");
-	close(priv->fd.drm);
+	priv->fd.drm = local_close(priv->fd.drm);
+	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
 
 	healthcheck(priv);
 }
@@ -245,7 +275,10 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 
 igt_main
 {
-	struct hotunplug priv = { .failure = NULL, };
+	struct hotunplug priv = {
+		.fd		= { .drm = -1, .sysfs_dev = -1, },
+		.failure	= NULL,
+	};
 
 	igt_fixture {
 		int fd_drm;
@@ -264,7 +297,7 @@ igt_main
 		/* Make sure subtests always reopen the same device */
 		set_filter_from_device(fd_drm);
 
-		close(fd_drm);
+		igt_fail_on_f(close(fd_drm), "Device close failed\n");
 	}
 
 	igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
@@ -272,26 +305,26 @@ igt_main
 		unbind_rebind(&priv);
 
 	igt_fixture
-		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
+		post_healthcheck(&priv);
 
 	igt_describe("Check if a device believed to be closed can be cleanly unplugged");
 	igt_subtest("unplug-rescan")
 		unplug_rescan(&priv);
 
 	igt_fixture
-		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
+		post_healthcheck(&priv);
 
 	igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
 	igt_subtest("hotunbind-lateclose")
 		hotunbind_lateclose(&priv);
 
 	igt_fixture
-		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
+		post_healthcheck(&priv);
 
 	igt_describe("Check if a still open device can be cleanly unplugged, then released");
 	igt_subtest("hotunplug-lateclose")
 		hotunplug_lateclose(&priv);
 
 	igt_fixture
-		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
+		post_healthcheck(&priv);
 }
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 08/16] tests/core_hotunplug: Handle device close errors

[Janusz Krzysztofik]

The test now ignores device close errors.  Those errors are believed to
have no influence on device health so there is no need to process them
the same way as we mostly do on errors, i.e., notify CI about a problem
via igt_abort.  However, those errors may indicate issues with the test
itself.  Moreover, impact of those errors on operations performed by
subtests, like driver unbind or device remove, should be perceived as
undefined.  Then, we should fail as soon as a device or device sysfs
node close error occurs and also skip subsequent subtests.  However,
once a driver unbind or device unplug operation has been attempted by a
subtest, we can't just fail without checking the device health.

When in a subtest, store results of device close operations for future
reference.  Reuse file descriptor fields of the hotunplug structure for
that.  Unless in between of a driver remove or device unplug operation
and a successful device health check, fail current test section right
after a device close error occurs, warn otherwise.  If still running,
examine device file descriptor fields in subsequent igt_fixture
sections and skip on errors.

v2: Fix a typo in post_healthcheck function name,
  - rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 61 ++++++++++++++++++++++++++++++++----------
 1 file changed, 47 insertions(+), 14 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 6070b7d95..ffba32568 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -43,13 +43,22 @@ struct hotunplug {
 		int sysfs_dev;
 		int sysfs_bus;
 		int sysfs_drv;
-	} fd;
+	} fd;	/* >= 0: valid fd, == -1: closed, < -1: close failed */
 	const char *dev_bus_addr;
 	const char *failure;
 };
 
 /* Helpers */
 
+static int local_close(int fd)
+{
+	errno = 0;
+	if (close(fd))	/* close failure - return -errno (never -1) */
+		return -errno;
+
+	return -1;	/* success - return 'closed' */
+}
+
 static void prepare_for_unbind(struct hotunplug *priv, char *buf, int buflen)
 {
 	int len;
@@ -66,7 +75,9 @@ static void prepare_for_unbind(struct hotunplug *priv, char *buf, int buflen)
 	igt_assert(priv->dev_bus_addr++);
 
 	/* sysfs_dev no longer needed */
-	close(priv->fd.sysfs_dev);
+	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
+	igt_assert_f(priv->fd.sysfs_dev == -1,
+		     "Device sysfs node close failed\n");
 }
 
 static void prepare(struct hotunplug *priv, char *buf, int buflen)
@@ -127,7 +138,9 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
 	igt_reset_timeout();
 	priv->failure = NULL;
 
-	close(priv->fd.sysfs_dev);
+	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
+	igt_warn_on_f(priv->fd.sysfs_dev != -1,
+		      "Device sysfs node close failed\n");
 }
 
 /* Re-discover the device by rescanning its bus */
@@ -146,6 +159,7 @@ static void bus_rescan(struct hotunplug *priv)
 
 static void healthcheck(struct hotunplug *priv)
 {
+	/* preserve error code potentially stored before in priv->fd.drm */
 	int fd_drm;
 
 	/* device name may have changed, rebuild IGT device list */
@@ -161,7 +175,19 @@ static void healthcheck(struct hotunplug *priv)
 		priv->failure = NULL;
 	}
 
-	close(fd_drm);
+	fd_drm = local_close(fd_drm);
+	if (priv->fd.drm == -1)
+		priv->fd.drm = fd_drm;
+	igt_assert_f(fd_drm == -1, "Device close failed\n");
+}
+
+static void post_healthcheck(struct hotunplug *priv)
+{
+	igt_abort_on_f(priv->failure, "%s\n", priv->failure);
+
+	igt_require_f(priv->fd.drm == -1, "Device not closed properly\n");
+	igt_require_f(priv->fd.sysfs_dev == -1,
+		      "Device sysfs node not closed properly\n");
 }
 
 static void set_filter_from_device(int fd)
@@ -188,7 +214,8 @@ static void unbind_rebind(struct hotunplug *priv)
 	prepare(priv, buf, sizeof(buf));
 
 	igt_debug("closing the device\n");
-	close(priv->fd.drm);
+	priv->fd.drm = local_close(priv->fd.drm);
+	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
 
 	driver_unbind(priv, "");
 
@@ -202,7 +229,8 @@ static void unplug_rescan(struct hotunplug *priv)
 	prepare(priv, NULL, 0);
 
 	igt_debug("closing the device\n");
-	close(priv->fd.drm);
+	priv->fd.drm = local_close(priv->fd.drm);
+	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
 
 	device_unplug(priv, "");
 
@@ -222,7 +250,8 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 	driver_bind(priv);
 
 	igt_debug("late closing the unbound device instance\n");
-	close(priv->fd.drm);
+	priv->fd.drm = local_close(priv->fd.drm);
+	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
 
 	healthcheck(priv);
 }
@@ -236,7 +265,8 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 	bus_rescan(priv);
 
 	igt_debug("late closing the removed device instance\n");
-	close(priv->fd.drm);
+	priv->fd.drm = local_close(priv->fd.drm);
+	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
 
 	healthcheck(priv);
 }
@@ -245,7 +275,10 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 
 igt_main
 {
-	struct hotunplug priv = { .failure = NULL, };
+	struct hotunplug priv = {
+		.fd		= { .drm = -1, .sysfs_dev = -1, },
+		.failure	= NULL,
+	};
 
 	igt_fixture {
 		int fd_drm;
@@ -264,7 +297,7 @@ igt_main
 		/* Make sure subtests always reopen the same device */
 		set_filter_from_device(fd_drm);
 
-		close(fd_drm);
+		igt_fail_on_f(close(fd_drm), "Device close failed\n");
 	}
 
 	igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
@@ -272,26 +305,26 @@ igt_main
 		unbind_rebind(&priv);
 
 	igt_fixture
-		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
+		post_healthcheck(&priv);
 
 	igt_describe("Check if a device believed to be closed can be cleanly unplugged");
 	igt_subtest("unplug-rescan")
 		unplug_rescan(&priv);
 
 	igt_fixture
-		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
+		post_healthcheck(&priv);
 
 	igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
 	igt_subtest("hotunbind-lateclose")
 		hotunbind_lateclose(&priv);
 
 	igt_fixture
-		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
+		post_healthcheck(&priv);
 
 	igt_describe("Check if a still open device can be cleanly unplugged, then released");
 	igt_subtest("hotunplug-lateclose")
 		hotunplug_lateclose(&priv);
 
 	igt_fixture
-		igt_abort_on_f(priv.failure, "%s\n", priv.failure);
+		post_healthcheck(&priv);
 }
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 09/16] tests/core_hotunplug: Prepare invariant data once per test run

[Janusz Krzysztofik]

Each subtest now calls a prepare() helper which opens a couple of files
required by that subtest.  Those files are then closed after use,
either directly from the subtest body, or indirectly from inside one of
helper functions called during the subtest execution.  That approach
not only makes lifecycle of individual file descriptors difficult to
follow but also prevents us from re-running health checks on subtest
failures from follow up igt_fixture sections since we may need to retry
bus rescan or driver rebind operations.

Two of those files - device bus and driver sysfs nodes - are not
affected nor interfere with driver unbind / device unplug operations
performed by subtests.  Then, there is not much sense in closing and
reopening those nodes.  Open them once at the beginning of a test run,
then close them as late as on test completion.

The prepare() helper also populates a device bus address string used by
driver unbind / rebind operations.  Since the bus address of an
exercised device never changes, also prepare that string only once at
the beginning of a test run.  Note that it is the same as the last
component of a device filter string which is already resolved and
installed from an initial igt_fixture section of the test.  Then,
initialize the device bus address field of a hotunplug structure
instance with a pointer to the respective substring of that filter
rather than resolving it again from the device sysfs node pathname.

There is one more sysfs node - a DRM device node - now opened by the
prepare() helper for subtests which perform device remove operations.
That node can't be opened only once at the beginning of a test run
because its open file descriptor is no longer usable as soon as a
driver unbind operation is performed.  On the other hand, it can't be
opened easily from inside a device_remove() helper since some subtests
just don't open the device so its file descriptor used by
igt_sysfs_open() may just not be available.  However, note that only a
PCI sysfs node of the device, not necessarily the DRM one, is actually
required for a successful device remove operation, and that node can be
opened easily from a bus file descriptor using a device bus address
string, both already available.  Then, change the semantics of a
.fd.sysfs_dev field of the hotunplug structure from DRM to PCI device
sysfs file descriptor, then let the device_remove() helper open the
device PCI node by itself and store its file descriptor in that field.
Also, for still more easy access to the device PCI node, use a
'subsystem/devices' subnode of the PCI device as its bus sysfs location
instead of just 'subsystem', then adjust a relative path to the bus
'rescan' function accordingly.

A side benefit of using the PCI device sysfs node, not the DRM one,
while removing the device is that a future subtest may now easily
perform both driver unbind and device remove operations in a row.

v2: Rebase on current upstream master.

Suggested-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 91 ++++++++++++++++--------------------------
 1 file changed, 35 insertions(+), 56 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index ffba32568..71ac4d169 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -59,46 +59,33 @@ static int local_close(int fd)
 	return -1;	/* success - return 'closed' */
 }
 
-static void prepare_for_unbind(struct hotunplug *priv, char *buf, int buflen)
+static void prepare(struct hotunplug *priv)
 {
-	int len;
+	const char *filter = igt_device_filter_get(0), *sysfs_path;
 
-	igt_assert(buflen);
+	igt_assert(filter);
 
-	priv->fd.sysfs_drv = openat(priv->fd.sysfs_dev, "device/driver",
-				    O_DIRECTORY);
+	priv->dev_bus_addr = strrchr(filter, '/');
+	igt_assert(priv->dev_bus_addr++);
+
+	sysfs_path = strchr(filter, ':');
+	igt_assert(sysfs_path++);
+
+	priv->fd.sysfs_dev = open(sysfs_path, O_DIRECTORY);
+	igt_assert_fd(priv->fd.sysfs_dev);
+
+	priv->fd.sysfs_drv = openat(priv->fd.sysfs_dev, "driver", O_DIRECTORY);
 	igt_assert_fd(priv->fd.sysfs_drv);
 
-	len = readlinkat(priv->fd.sysfs_dev, "device", buf, buflen - 1);
-	buf[len] = '\0';
-	priv->dev_bus_addr = strrchr(buf, '/');
-	igt_assert(priv->dev_bus_addr++);
+	priv->fd.sysfs_bus = openat(priv->fd.sysfs_dev, "subsystem/devices",
+				    O_DIRECTORY);
+	igt_assert_fd(priv->fd.sysfs_bus);
 
-	/* sysfs_dev no longer needed */
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
 	igt_assert_f(priv->fd.sysfs_dev == -1,
 		     "Device sysfs node close failed\n");
 }
 
-static void prepare(struct hotunplug *priv, char *buf, int buflen)
-{
-	igt_debug("opening device\n");
-	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
-	igt_assert_fd(priv->fd.drm);
-
-	priv->fd.sysfs_dev = igt_sysfs_open(priv->fd.drm);
-	igt_assert_fd(priv->fd.sysfs_dev);
-
-	if (buf) {
-		prepare_for_unbind(priv, buf, buflen);
-	} else {
-		/* prepare for bus rescan */
-		priv->fd.sysfs_bus = openat(priv->fd.sysfs_dev,
-					    "device/subsystem", O_DIRECTORY);
-		igt_assert_fd(priv->fd.sysfs_bus);
-	}
-}
-
 /* Unbind the driver from the device */
 static void driver_unbind(struct hotunplug *priv, const char *prefix)
 {
@@ -109,8 +96,6 @@ static void driver_unbind(struct hotunplug *priv, const char *prefix)
 	igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
 	igt_reset_timeout();
 	priv->failure = NULL;
-
-	/* don't close fd.sysfs_drv, it will be used for driver rebinding */
 }
 
 /* Re-bind the driver to the device */
@@ -123,18 +108,20 @@ static void driver_bind(struct hotunplug *priv)
 	igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
 	igt_reset_timeout();
 	priv->failure = NULL;
-
-	close(priv->fd.sysfs_drv);
 }
 
 /* Remove (virtually unplug) the device from its bus */
 static void device_unplug(struct hotunplug *priv, const char *prefix)
 {
+	priv->fd.sysfs_dev = openat(priv->fd.sysfs_bus, priv->dev_bus_addr,
+				    O_DIRECTORY);
+	igt_assert_fd(priv->fd.sysfs_dev);
+
 	igt_debug("%sunplugging the device\n", prefix);
 
 	priv->failure = "Device unplug timeout!";
 	igt_set_timeout(60, priv->failure);
-	igt_sysfs_set(priv->fd.sysfs_dev, "device/remove", "1");
+	igt_sysfs_set(priv->fd.sysfs_dev, "remove", "1");
 	igt_reset_timeout();
 	priv->failure = NULL;
 
@@ -150,11 +137,9 @@ static void bus_rescan(struct hotunplug *priv)
 
 	priv->failure = "Bus rescan timeout!";
 	igt_set_timeout(60, priv->failure);
-	igt_sysfs_set(priv->fd.sysfs_bus, "rescan", "1");
+	igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1");
 	igt_reset_timeout();
 	priv->failure = NULL;
-
-	close(priv->fd.sysfs_bus);
 }
 
 static void healthcheck(struct hotunplug *priv)
@@ -209,14 +194,6 @@ static void set_filter_from_device(int fd)
 
 static void unbind_rebind(struct hotunplug *priv)
 {
-	char buf[PATH_MAX];
-
-	prepare(priv, buf, sizeof(buf));
-
-	igt_debug("closing the device\n");
-	priv->fd.drm = local_close(priv->fd.drm);
-	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
-
 	driver_unbind(priv, "");
 
 	driver_bind(priv);
@@ -226,12 +203,6 @@ static void unbind_rebind(struct hotunplug *priv)
 
 static void unplug_rescan(struct hotunplug *priv)
 {
-	prepare(priv, NULL, 0);
-
-	igt_debug("closing the device\n");
-	priv->fd.drm = local_close(priv->fd.drm);
-	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
-
 	device_unplug(priv, "");
 
 	bus_rescan(priv);
@@ -241,9 +212,9 @@ static void unplug_rescan(struct hotunplug *priv)
 
 static void hotunbind_lateclose(struct hotunplug *priv)
 {
-	char buf[PATH_MAX];
-
-	prepare(priv, buf, sizeof(buf));
+	igt_debug("opening device\n");
+	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
+	igt_assert_fd(priv->fd.drm);
 
 	driver_unbind(priv, "hot ");
 
@@ -258,7 +229,9 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 
 static void hotunplug_lateclose(struct hotunplug *priv)
 {
-	prepare(priv, NULL, 0);
+	igt_debug("opening device\n");
+	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
+	igt_assert_fd(priv->fd.drm);
 
 	device_unplug(priv, "hot ");
 
@@ -298,6 +271,8 @@ igt_main
 		set_filter_from_device(fd_drm);
 
 		igt_fail_on_f(close(fd_drm), "Device close failed\n");
+
+		prepare(&priv);
 	}
 
 	igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
@@ -325,6 +300,10 @@ igt_main
 	igt_subtest("hotunplug-lateclose")
 		hotunplug_lateclose(&priv);
 
-	igt_fixture
+	igt_fixture {
 		post_healthcheck(&priv);
+
+		close(priv.fd.sysfs_bus);
+		close(priv.fd.sysfs_drv);
+	}
 }
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 09/16] tests/core_hotunplug: Prepare invariant data once per test run

[Janusz Krzysztofik]

Each subtest now calls a prepare() helper which opens a couple of files
required by that subtest.  Those files are then closed after use,
either directly from the subtest body, or indirectly from inside one of
helper functions called during the subtest execution.  That approach
not only makes lifecycle of individual file descriptors difficult to
follow but also prevents us from re-running health checks on subtest
failures from follow up igt_fixture sections since we may need to retry
bus rescan or driver rebind operations.

Two of those files - device bus and driver sysfs nodes - are not
affected nor interfere with driver unbind / device unplug operations
performed by subtests.  Then, there is not much sense in closing and
reopening those nodes.  Open them once at the beginning of a test run,
then close them as late as on test completion.

The prepare() helper also populates a device bus address string used by
driver unbind / rebind operations.  Since the bus address of an
exercised device never changes, also prepare that string only once at
the beginning of a test run.  Note that it is the same as the last
component of a device filter string which is already resolved and
installed from an initial igt_fixture section of the test.  Then,
initialize the device bus address field of a hotunplug structure
instance with a pointer to the respective substring of that filter
rather than resolving it again from the device sysfs node pathname.

There is one more sysfs node - a DRM device node - now opened by the
prepare() helper for subtests which perform device remove operations.
That node can't be opened only once at the beginning of a test run
because its open file descriptor is no longer usable as soon as a
driver unbind operation is performed.  On the other hand, it can't be
opened easily from inside a device_remove() helper since some subtests
just don't open the device so its file descriptor used by
igt_sysfs_open() may just not be available.  However, note that only a
PCI sysfs node of the device, not necessarily the DRM one, is actually
required for a successful device remove operation, and that node can be
opened easily from a bus file descriptor using a device bus address
string, both already available.  Then, change the semantics of a
.fd.sysfs_dev field of the hotunplug structure from DRM to PCI device
sysfs file descriptor, then let the device_remove() helper open the
device PCI node by itself and store its file descriptor in that field.
Also, for still more easy access to the device PCI node, use a
'subsystem/devices' subnode of the PCI device as its bus sysfs location
instead of just 'subsystem', then adjust a relative path to the bus
'rescan' function accordingly.

A side benefit of using the PCI device sysfs node, not the DRM one,
while removing the device is that a future subtest may now easily
perform both driver unbind and device remove operations in a row.

v2: Rebase on current upstream master.

Suggested-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 91 ++++++++++++++++--------------------------
 1 file changed, 35 insertions(+), 56 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index ffba32568..71ac4d169 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -59,46 +59,33 @@ static int local_close(int fd)
 	return -1;	/* success - return 'closed' */
 }
 
-static void prepare_for_unbind(struct hotunplug *priv, char *buf, int buflen)
+static void prepare(struct hotunplug *priv)
 {
-	int len;
+	const char *filter = igt_device_filter_get(0), *sysfs_path;
 
-	igt_assert(buflen);
+	igt_assert(filter);
 
-	priv->fd.sysfs_drv = openat(priv->fd.sysfs_dev, "device/driver",
-				    O_DIRECTORY);
+	priv->dev_bus_addr = strrchr(filter, '/');
+	igt_assert(priv->dev_bus_addr++);
+
+	sysfs_path = strchr(filter, ':');
+	igt_assert(sysfs_path++);
+
+	priv->fd.sysfs_dev = open(sysfs_path, O_DIRECTORY);
+	igt_assert_fd(priv->fd.sysfs_dev);
+
+	priv->fd.sysfs_drv = openat(priv->fd.sysfs_dev, "driver", O_DIRECTORY);
 	igt_assert_fd(priv->fd.sysfs_drv);
 
-	len = readlinkat(priv->fd.sysfs_dev, "device", buf, buflen - 1);
-	buf[len] = '\0';
-	priv->dev_bus_addr = strrchr(buf, '/');
-	igt_assert(priv->dev_bus_addr++);
+	priv->fd.sysfs_bus = openat(priv->fd.sysfs_dev, "subsystem/devices",
+				    O_DIRECTORY);
+	igt_assert_fd(priv->fd.sysfs_bus);
 
-	/* sysfs_dev no longer needed */
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
 	igt_assert_f(priv->fd.sysfs_dev == -1,
 		     "Device sysfs node close failed\n");
 }
 
-static void prepare(struct hotunplug *priv, char *buf, int buflen)
-{
-	igt_debug("opening device\n");
-	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
-	igt_assert_fd(priv->fd.drm);
-
-	priv->fd.sysfs_dev = igt_sysfs_open(priv->fd.drm);
-	igt_assert_fd(priv->fd.sysfs_dev);
-
-	if (buf) {
-		prepare_for_unbind(priv, buf, buflen);
-	} else {
-		/* prepare for bus rescan */
-		priv->fd.sysfs_bus = openat(priv->fd.sysfs_dev,
-					    "device/subsystem", O_DIRECTORY);
-		igt_assert_fd(priv->fd.sysfs_bus);
-	}
-}
-
 /* Unbind the driver from the device */
 static void driver_unbind(struct hotunplug *priv, const char *prefix)
 {
@@ -109,8 +96,6 @@ static void driver_unbind(struct hotunplug *priv, const char *prefix)
 	igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
 	igt_reset_timeout();
 	priv->failure = NULL;
-
-	/* don't close fd.sysfs_drv, it will be used for driver rebinding */
 }
 
 /* Re-bind the driver to the device */
@@ -123,18 +108,20 @@ static void driver_bind(struct hotunplug *priv)
 	igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
 	igt_reset_timeout();
 	priv->failure = NULL;
-
-	close(priv->fd.sysfs_drv);
 }
 
 /* Remove (virtually unplug) the device from its bus */
 static void device_unplug(struct hotunplug *priv, const char *prefix)
 {
+	priv->fd.sysfs_dev = openat(priv->fd.sysfs_bus, priv->dev_bus_addr,
+				    O_DIRECTORY);
+	igt_assert_fd(priv->fd.sysfs_dev);
+
 	igt_debug("%sunplugging the device\n", prefix);
 
 	priv->failure = "Device unplug timeout!";
 	igt_set_timeout(60, priv->failure);
-	igt_sysfs_set(priv->fd.sysfs_dev, "device/remove", "1");
+	igt_sysfs_set(priv->fd.sysfs_dev, "remove", "1");
 	igt_reset_timeout();
 	priv->failure = NULL;
 
@@ -150,11 +137,9 @@ static void bus_rescan(struct hotunplug *priv)
 
 	priv->failure = "Bus rescan timeout!";
 	igt_set_timeout(60, priv->failure);
-	igt_sysfs_set(priv->fd.sysfs_bus, "rescan", "1");
+	igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1");
 	igt_reset_timeout();
 	priv->failure = NULL;
-
-	close(priv->fd.sysfs_bus);
 }
 
 static void healthcheck(struct hotunplug *priv)
@@ -209,14 +194,6 @@ static void set_filter_from_device(int fd)
 
 static void unbind_rebind(struct hotunplug *priv)
 {
-	char buf[PATH_MAX];
-
-	prepare(priv, buf, sizeof(buf));
-
-	igt_debug("closing the device\n");
-	priv->fd.drm = local_close(priv->fd.drm);
-	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
-
 	driver_unbind(priv, "");
 
 	driver_bind(priv);
@@ -226,12 +203,6 @@ static void unbind_rebind(struct hotunplug *priv)
 
 static void unplug_rescan(struct hotunplug *priv)
 {
-	prepare(priv, NULL, 0);
-
-	igt_debug("closing the device\n");
-	priv->fd.drm = local_close(priv->fd.drm);
-	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
-
 	device_unplug(priv, "");
 
 	bus_rescan(priv);
@@ -241,9 +212,9 @@ static void unplug_rescan(struct hotunplug *priv)
 
 static void hotunbind_lateclose(struct hotunplug *priv)
 {
-	char buf[PATH_MAX];
-
-	prepare(priv, buf, sizeof(buf));
+	igt_debug("opening device\n");
+	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
+	igt_assert_fd(priv->fd.drm);
 
 	driver_unbind(priv, "hot ");
 
@@ -258,7 +229,9 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 
 static void hotunplug_lateclose(struct hotunplug *priv)
 {
-	prepare(priv, NULL, 0);
+	igt_debug("opening device\n");
+	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
+	igt_assert_fd(priv->fd.drm);
 
 	device_unplug(priv, "hot ");
 
@@ -298,6 +271,8 @@ igt_main
 		set_filter_from_device(fd_drm);
 
 		igt_fail_on_f(close(fd_drm), "Device close failed\n");
+
+		prepare(&priv);
 	}
 
 	igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
@@ -325,6 +300,10 @@ igt_main
 	igt_subtest("hotunplug-lateclose")
 		hotunplug_lateclose(&priv);
 
-	igt_fixture
+	igt_fixture {
 		post_healthcheck(&priv);
+
+		close(priv.fd.sysfs_bus);
+		close(priv.fd.sysfs_drv);
+	}
 }
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 10/16] tests/core_hotunplug: Skip selectively on sysfs close errors

[Janusz Krzysztofik]

Since we no longer open a device DRM sysfs node, only a PCI one, driver
unbind operations are no longer affected by missed or unsuccessful
sysfs file close attempts.  Skip only affected subtests if that
happens.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 71ac4d169..b9982b330 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -82,8 +82,8 @@ static void prepare(struct hotunplug *priv)
 	igt_assert_fd(priv->fd.sysfs_bus);
 
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
-	igt_assert_f(priv->fd.sysfs_dev == -1,
-		     "Device sysfs node close failed\n");
+	igt_warn_on_f(priv->fd.sysfs_dev != -1,
+		      "Device sysfs node close failed\n");
 }
 
 /* Unbind the driver from the device */
@@ -113,6 +113,9 @@ static void driver_bind(struct hotunplug *priv)
 /* Remove (virtually unplug) the device from its bus */
 static void device_unplug(struct hotunplug *priv, const char *prefix)
 {
+	igt_require_f(priv->fd.sysfs_dev == -1,
+		      "Device sysfs node not closed properly\n");
+
 	priv->fd.sysfs_dev = openat(priv->fd.sysfs_bus, priv->dev_bus_addr,
 				    O_DIRECTORY);
 	igt_assert_fd(priv->fd.sysfs_dev);
@@ -171,8 +174,6 @@ static void post_healthcheck(struct hotunplug *priv)
 	igt_abort_on_f(priv->failure, "%s\n", priv->failure);
 
 	igt_require_f(priv->fd.drm == -1, "Device not closed properly\n");
-	igt_require_f(priv->fd.sysfs_dev == -1,
-		      "Device sysfs node not closed properly\n");
 }
 
 static void set_filter_from_device(int fd)
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 10/16] tests/core_hotunplug: Skip selectively on sysfs close errors

[Janusz Krzysztofik]

Since we no longer open a device DRM sysfs node, only a PCI one, driver
unbind operations are no longer affected by missed or unsuccessful
sysfs file close attempts.  Skip only affected subtests if that
happens.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 71ac4d169..b9982b330 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -82,8 +82,8 @@ static void prepare(struct hotunplug *priv)
 	igt_assert_fd(priv->fd.sysfs_bus);
 
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
-	igt_assert_f(priv->fd.sysfs_dev == -1,
-		     "Device sysfs node close failed\n");
+	igt_warn_on_f(priv->fd.sysfs_dev != -1,
+		      "Device sysfs node close failed\n");
 }
 
 /* Unbind the driver from the device */
@@ -113,6 +113,9 @@ static void driver_bind(struct hotunplug *priv)
 /* Remove (virtually unplug) the device from its bus */
 static void device_unplug(struct hotunplug *priv, const char *prefix)
 {
+	igt_require_f(priv->fd.sysfs_dev == -1,
+		      "Device sysfs node not closed properly\n");
+
 	priv->fd.sysfs_dev = openat(priv->fd.sysfs_bus, priv->dev_bus_addr,
 				    O_DIRECTORY);
 	igt_assert_fd(priv->fd.sysfs_dev);
@@ -171,8 +174,6 @@ static void post_healthcheck(struct hotunplug *priv)
 	igt_abort_on_f(priv->failure, "%s\n", priv->failure);
 
 	igt_require_f(priv->fd.drm == -1, "Device not closed properly\n");
-	igt_require_f(priv->fd.sysfs_dev == -1,
-		      "Device sysfs node not closed properly\n");
 }
 
 static void set_filter_from_device(int fd)
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 11/16] tests/core_hotunplug: Follow failed subtests with health checks

[Janusz Krzysztofik]

Subtests now forcibly call or request igt_abort on failures in order to
avoid silently leaving an exercised device in an unusable state.
However, a failure inside a subtest doesn't always mean the device is
no longer working correctly and reboot is needed.  On the other hand,
if a subtest just fails without aborting, that doesn't mean in turn the
device is healthy.  We should still perform a device health check
in that case before deciding on next steps.

Reuse the 'failure' structure field as a mark which is set when a
subtest enters a chunk of critical steps which must be followed by a
successful health check in order to avoid aborting the test execution.
Then, move health checks from inside each subtest body to its
individual follow-up igt_fixture section from where device file
descriptors potentially left open are closed and the health check is
run if theigt_subtest section has been exited with the marker set.
Also, precede health check operations with a driver rebind or bus
rescan attempt as needed.

v2: Start each recovery phase from unconditionally closing file
    descriptors potentially left open by a subtest before it entered
    its critical section,
  - replace igt_require() with 'if() return;' construct in recover() to
    reduce noise,
  - replace "subtest failure" message used as a request for healthcheck
    with a more appropriate "need healthcheck" for clarity,
  - rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> # v1
---
 tests/core_hotunplug.c | 108 +++++++++++++++++++++++++++++------------
 1 file changed, 76 insertions(+), 32 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index b9982b330..313c44784 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -52,6 +52,9 @@ struct hotunplug {
 
 static int local_close(int fd)
 {
+	if (fd < 0)	/* not open - return current status */
+		return fd;
+
 	errno = 0;
 	if (close(fd))	/* close failure - return -errno (never -1) */
 		return -errno;
@@ -91,11 +94,9 @@ static void driver_unbind(struct hotunplug *priv, const char *prefix)
 {
 	igt_debug("%sunbinding the driver from the device\n", prefix);
 
-	priv->failure = "Driver unbind timeout!";
-	igt_set_timeout(60, priv->failure);
+	igt_set_timeout(60, "Driver unbind timeout!");
 	igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
 	igt_reset_timeout();
-	priv->failure = NULL;
 }
 
 /* Re-bind the driver to the device */
@@ -103,11 +104,9 @@ static void driver_bind(struct hotunplug *priv)
 {
 	igt_debug("rebinding the driver to the device\n");
 
-	priv->failure = "Driver re-bind timeout!";
-	igt_set_timeout(60, priv->failure);
+	igt_set_timeout(60, "Driver re-bind timeout!");
 	igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
 	igt_reset_timeout();
-	priv->failure = NULL;
 }
 
 /* Remove (virtually unplug) the device from its bus */
@@ -122,11 +121,9 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
 
 	igt_debug("%sunplugging the device\n", prefix);
 
-	priv->failure = "Device unplug timeout!";
-	igt_set_timeout(60, priv->failure);
+	igt_set_timeout(60, "Device unplug timeout!");
 	igt_sysfs_set(priv->fd.sysfs_dev, "remove", "1");
 	igt_reset_timeout();
-	priv->failure = NULL;
 
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
 	igt_warn_on_f(priv->fd.sysfs_dev != -1,
@@ -138,11 +135,15 @@ static void bus_rescan(struct hotunplug *priv)
 {
 	igt_debug("recovering the device\n");
 
-	priv->failure = "Bus rescan timeout!";
-	igt_set_timeout(60, priv->failure);
+	igt_set_timeout(60, "Bus rescan timeout!");
 	igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1");
 	igt_reset_timeout();
-	priv->failure = NULL;
+}
+
+static void cleanup(struct hotunplug *priv)
+{
+	priv->fd.drm = local_close(priv->fd.drm);
+	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
 }
 
 static void healthcheck(struct hotunplug *priv)
@@ -150,6 +151,18 @@ static void healthcheck(struct hotunplug *priv)
 	/* preserve error code potentially stored before in priv->fd.drm */
 	int fd_drm;
 
+	if (faccessat(priv->fd.sysfs_bus, priv->dev_bus_addr, F_OK, 0)) {
+		priv->failure = "Bus rescan failed!";
+		bus_rescan(priv);
+		priv->failure = NULL;
+	}
+
+	if (faccessat(priv->fd.sysfs_drv, priv->dev_bus_addr, F_OK, 0)) {
+		priv->failure = "Driver re-bind failed!";
+		driver_bind(priv);
+		priv->failure = NULL;
+	}
+
 	/* device name may have changed, rebuild IGT device list */
 	igt_devices_scan(true);
 
@@ -169,6 +182,17 @@ static void healthcheck(struct hotunplug *priv)
 	igt_assert_f(fd_drm == -1, "Device close failed\n");
 }
 
+static void recover(struct hotunplug *priv)
+{
+	cleanup(priv);
+
+	if (!priv->failure)
+		return;
+	priv->failure = NULL;
+
+	healthcheck(priv);
+}
+
 static void post_healthcheck(struct hotunplug *priv)
 {
 	igt_abort_on_f(priv->failure, "%s\n", priv->failure);
@@ -195,20 +219,20 @@ static void set_filter_from_device(int fd)
 
 static void unbind_rebind(struct hotunplug *priv)
 {
+	priv->failure = "need healthcheck";
+
 	driver_unbind(priv, "");
 
 	driver_bind(priv);
-
-	healthcheck(priv);
 }
 
 static void unplug_rescan(struct hotunplug *priv)
 {
+	priv->failure = "need healthcheck";
+
 	device_unplug(priv, "");
 
 	bus_rescan(priv);
-
-	healthcheck(priv);
 }
 
 static void hotunbind_lateclose(struct hotunplug *priv)
@@ -217,6 +241,8 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
 	igt_assert_fd(priv->fd.drm);
 
+	priv->failure = "need healthcheck";
+
 	driver_unbind(priv, "hot ");
 
 	driver_bind(priv);
@@ -224,8 +250,6 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 	igt_debug("late closing the unbound device instance\n");
 	priv->fd.drm = local_close(priv->fd.drm);
 	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
-
-	healthcheck(priv);
 }
 
 static void hotunplug_lateclose(struct hotunplug *priv)
@@ -234,6 +258,8 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
 	igt_assert_fd(priv->fd.drm);
 
+	priv->failure = "need healthcheck";
+
 	device_unplug(priv, "hot ");
 
 	bus_rescan(priv);
@@ -241,8 +267,6 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 	igt_debug("late closing the removed device instance\n");
 	priv->fd.drm = local_close(priv->fd.drm);
 	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
-
-	healthcheck(priv);
 }
 
 /* Main */
@@ -276,30 +300,50 @@ igt_main
 		prepare(&priv);
 	}
 
-	igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
-	igt_subtest("unbind-rebind")
-		unbind_rebind(&priv);
+	igt_subtest_group {
+		igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
+		igt_subtest("unbind-rebind")
+			unbind_rebind(&priv);
+
+		igt_fixture
+			recover(&priv);
+	}
 
 	igt_fixture
 		post_healthcheck(&priv);
 
-	igt_describe("Check if a device believed to be closed can be cleanly unplugged");
-	igt_subtest("unplug-rescan")
-		unplug_rescan(&priv);
+	igt_subtest_group {
+		igt_describe("Check if a device believed to be closed can be cleanly unplugged");
+		igt_subtest("unplug-rescan")
+			unplug_rescan(&priv);
+
+		igt_fixture
+			recover(&priv);
+	}
 
 	igt_fixture
 		post_healthcheck(&priv);
 
-	igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
-	igt_subtest("hotunbind-lateclose")
-		hotunbind_lateclose(&priv);
+	igt_subtest_group {
+		igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
+		igt_subtest("hotunbind-lateclose")
+			hotunbind_lateclose(&priv);
+
+		igt_fixture
+			recover(&priv);
+	}
 
 	igt_fixture
 		post_healthcheck(&priv);
 
-	igt_describe("Check if a still open device can be cleanly unplugged, then released");
-	igt_subtest("hotunplug-lateclose")
-		hotunplug_lateclose(&priv);
+	igt_subtest_group {
+		igt_describe("Check if a still open device can be cleanly unplugged, then released");
+		igt_subtest("hotunplug-lateclose")
+			hotunplug_lateclose(&priv);
+
+		igt_fixture
+			recover(&priv);
+	}
 
 	igt_fixture {
 		post_healthcheck(&priv);
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 11/16] tests/core_hotunplug: Follow failed subtests with health checks

[Janusz Krzysztofik]

Subtests now forcibly call or request igt_abort on failures in order to
avoid silently leaving an exercised device in an unusable state.
However, a failure inside a subtest doesn't always mean the device is
no longer working correctly and reboot is needed.  On the other hand,
if a subtest just fails without aborting, that doesn't mean in turn the
device is healthy.  We should still perform a device health check
in that case before deciding on next steps.

Reuse the 'failure' structure field as a mark which is set when a
subtest enters a chunk of critical steps which must be followed by a
successful health check in order to avoid aborting the test execution.
Then, move health checks from inside each subtest body to its
individual follow-up igt_fixture section from where device file
descriptors potentially left open are closed and the health check is
run if theigt_subtest section has been exited with the marker set.
Also, precede health check operations with a driver rebind or bus
rescan attempt as needed.

v2: Start each recovery phase from unconditionally closing file
    descriptors potentially left open by a subtest before it entered
    its critical section,
  - replace igt_require() with 'if() return;' construct in recover() to
    reduce noise,
  - replace "subtest failure" message used as a request for healthcheck
    with a more appropriate "need healthcheck" for clarity,
  - rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> # v1
---
 tests/core_hotunplug.c | 108 +++++++++++++++++++++++++++++------------
 1 file changed, 76 insertions(+), 32 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index b9982b330..313c44784 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -52,6 +52,9 @@ struct hotunplug {
 
 static int local_close(int fd)
 {
+	if (fd < 0)	/* not open - return current status */
+		return fd;
+
 	errno = 0;
 	if (close(fd))	/* close failure - return -errno (never -1) */
 		return -errno;
@@ -91,11 +94,9 @@ static void driver_unbind(struct hotunplug *priv, const char *prefix)
 {
 	igt_debug("%sunbinding the driver from the device\n", prefix);
 
-	priv->failure = "Driver unbind timeout!";
-	igt_set_timeout(60, priv->failure);
+	igt_set_timeout(60, "Driver unbind timeout!");
 	igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
 	igt_reset_timeout();
-	priv->failure = NULL;
 }
 
 /* Re-bind the driver to the device */
@@ -103,11 +104,9 @@ static void driver_bind(struct hotunplug *priv)
 {
 	igt_debug("rebinding the driver to the device\n");
 
-	priv->failure = "Driver re-bind timeout!";
-	igt_set_timeout(60, priv->failure);
+	igt_set_timeout(60, "Driver re-bind timeout!");
 	igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
 	igt_reset_timeout();
-	priv->failure = NULL;
 }
 
 /* Remove (virtually unplug) the device from its bus */
@@ -122,11 +121,9 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
 
 	igt_debug("%sunplugging the device\n", prefix);
 
-	priv->failure = "Device unplug timeout!";
-	igt_set_timeout(60, priv->failure);
+	igt_set_timeout(60, "Device unplug timeout!");
 	igt_sysfs_set(priv->fd.sysfs_dev, "remove", "1");
 	igt_reset_timeout();
-	priv->failure = NULL;
 
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
 	igt_warn_on_f(priv->fd.sysfs_dev != -1,
@@ -138,11 +135,15 @@ static void bus_rescan(struct hotunplug *priv)
 {
 	igt_debug("recovering the device\n");
 
-	priv->failure = "Bus rescan timeout!";
-	igt_set_timeout(60, priv->failure);
+	igt_set_timeout(60, "Bus rescan timeout!");
 	igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1");
 	igt_reset_timeout();
-	priv->failure = NULL;
+}
+
+static void cleanup(struct hotunplug *priv)
+{
+	priv->fd.drm = local_close(priv->fd.drm);
+	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
 }
 
 static void healthcheck(struct hotunplug *priv)
@@ -150,6 +151,18 @@ static void healthcheck(struct hotunplug *priv)
 	/* preserve error code potentially stored before in priv->fd.drm */
 	int fd_drm;
 
+	if (faccessat(priv->fd.sysfs_bus, priv->dev_bus_addr, F_OK, 0)) {
+		priv->failure = "Bus rescan failed!";
+		bus_rescan(priv);
+		priv->failure = NULL;
+	}
+
+	if (faccessat(priv->fd.sysfs_drv, priv->dev_bus_addr, F_OK, 0)) {
+		priv->failure = "Driver re-bind failed!";
+		driver_bind(priv);
+		priv->failure = NULL;
+	}
+
 	/* device name may have changed, rebuild IGT device list */
 	igt_devices_scan(true);
 
@@ -169,6 +182,17 @@ static void healthcheck(struct hotunplug *priv)
 	igt_assert_f(fd_drm == -1, "Device close failed\n");
 }
 
+static void recover(struct hotunplug *priv)
+{
+	cleanup(priv);
+
+	if (!priv->failure)
+		return;
+	priv->failure = NULL;
+
+	healthcheck(priv);
+}
+
 static void post_healthcheck(struct hotunplug *priv)
 {
 	igt_abort_on_f(priv->failure, "%s\n", priv->failure);
@@ -195,20 +219,20 @@ static void set_filter_from_device(int fd)
 
 static void unbind_rebind(struct hotunplug *priv)
 {
+	priv->failure = "need healthcheck";
+
 	driver_unbind(priv, "");
 
 	driver_bind(priv);
-
-	healthcheck(priv);
 }
 
 static void unplug_rescan(struct hotunplug *priv)
 {
+	priv->failure = "need healthcheck";
+
 	device_unplug(priv, "");
 
 	bus_rescan(priv);
-
-	healthcheck(priv);
 }
 
 static void hotunbind_lateclose(struct hotunplug *priv)
@@ -217,6 +241,8 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
 	igt_assert_fd(priv->fd.drm);
 
+	priv->failure = "need healthcheck";
+
 	driver_unbind(priv, "hot ");
 
 	driver_bind(priv);
@@ -224,8 +250,6 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 	igt_debug("late closing the unbound device instance\n");
 	priv->fd.drm = local_close(priv->fd.drm);
 	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
-
-	healthcheck(priv);
 }
 
 static void hotunplug_lateclose(struct hotunplug *priv)
@@ -234,6 +258,8 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 	priv->fd.drm = __drm_open_driver(DRIVER_ANY);
 	igt_assert_fd(priv->fd.drm);
 
+	priv->failure = "need healthcheck";
+
 	device_unplug(priv, "hot ");
 
 	bus_rescan(priv);
@@ -241,8 +267,6 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 	igt_debug("late closing the removed device instance\n");
 	priv->fd.drm = local_close(priv->fd.drm);
 	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
-
-	healthcheck(priv);
 }
 
 /* Main */
@@ -276,30 +300,50 @@ igt_main
 		prepare(&priv);
 	}
 
-	igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
-	igt_subtest("unbind-rebind")
-		unbind_rebind(&priv);
+	igt_subtest_group {
+		igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
+		igt_subtest("unbind-rebind")
+			unbind_rebind(&priv);
+
+		igt_fixture
+			recover(&priv);
+	}
 
 	igt_fixture
 		post_healthcheck(&priv);
 
-	igt_describe("Check if a device believed to be closed can be cleanly unplugged");
-	igt_subtest("unplug-rescan")
-		unplug_rescan(&priv);
+	igt_subtest_group {
+		igt_describe("Check if a device believed to be closed can be cleanly unplugged");
+		igt_subtest("unplug-rescan")
+			unplug_rescan(&priv);
+
+		igt_fixture
+			recover(&priv);
+	}
 
 	igt_fixture
 		post_healthcheck(&priv);
 
-	igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
-	igt_subtest("hotunbind-lateclose")
-		hotunbind_lateclose(&priv);
+	igt_subtest_group {
+		igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
+		igt_subtest("hotunbind-lateclose")
+			hotunbind_lateclose(&priv);
+
+		igt_fixture
+			recover(&priv);
+	}
 
 	igt_fixture
 		post_healthcheck(&priv);
 
-	igt_describe("Check if a still open device can be cleanly unplugged, then released");
-	igt_subtest("hotunplug-lateclose")
-		hotunplug_lateclose(&priv);
+	igt_subtest_group {
+		igt_describe("Check if a still open device can be cleanly unplugged, then released");
+		igt_subtest("hotunplug-lateclose")
+			hotunplug_lateclose(&priv);
+
+		igt_fixture
+			recover(&priv);
+	}
 
 	igt_fixture {
 		post_healthcheck(&priv);
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 12/16] tests/core_hotunplug: Fail subtests on device close errors

[Janusz Krzysztofik]

Since health checks are now run from follow-up fixture sections, it is
safe to fail subtests without the need to abort the test execution.  Do
that on device close errors instead of emitting warnings.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 313c44784..a4902eba2 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -126,8 +126,8 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
 	igt_reset_timeout();
 
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
-	igt_warn_on_f(priv->fd.sysfs_dev != -1,
-		      "Device sysfs node close failed\n");
+	igt_assert_f(priv->fd.sysfs_dev == -1,
+		     "Device sysfs node close failed\n");
 }
 
 /* Re-discover the device by rescanning its bus */
@@ -249,7 +249,7 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 
 	igt_debug("late closing the unbound device instance\n");
 	priv->fd.drm = local_close(priv->fd.drm);
-	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
+	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
 }
 
 static void hotunplug_lateclose(struct hotunplug *priv)
@@ -266,7 +266,7 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 
 	igt_debug("late closing the removed device instance\n");
 	priv->fd.drm = local_close(priv->fd.drm);
-	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
+	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
 }
 
 /* Main */
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 12/16] tests/core_hotunplug: Fail subtests on device close errors

[Janusz Krzysztofik]

Since health checks are now run from follow-up fixture sections, it is
safe to fail subtests without the need to abort the test execution.  Do
that on device close errors instead of emitting warnings.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 313c44784..a4902eba2 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -126,8 +126,8 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
 	igt_reset_timeout();
 
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
-	igt_warn_on_f(priv->fd.sysfs_dev != -1,
-		      "Device sysfs node close failed\n");
+	igt_assert_f(priv->fd.sysfs_dev == -1,
+		     "Device sysfs node close failed\n");
 }
 
 /* Re-discover the device by rescanning its bus */
@@ -249,7 +249,7 @@ static void hotunbind_lateclose(struct hotunplug *priv)
 
 	igt_debug("late closing the unbound device instance\n");
 	priv->fd.drm = local_close(priv->fd.drm);
-	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
+	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
 }
 
 static void hotunplug_lateclose(struct hotunplug *priv)
@@ -266,7 +266,7 @@ static void hotunplug_lateclose(struct hotunplug *priv)
 
 	igt_debug("late closing the removed device instance\n");
 	priv->fd.drm = local_close(priv->fd.drm);
-	igt_warn_on_f(priv->fd.drm != -1, "Device close failed\n");
+	igt_assert_f(priv->fd.drm == -1, "Device close failed\n");
 }
 
 /* Main */
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 13/16] tests/core_hotunplug: Process return values of sysfs operations

[Janusz Krzysztofik]

Return values of driver bind/unbind / device remove/recover sysfs
operations are now ignored.  Assert their correctness.

v2: Add trailing newlines missing from igt_assert messages,
  - rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index a4902eba2..48affce9b 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -95,7 +95,9 @@ static void driver_unbind(struct hotunplug *priv, const char *prefix)
 	igt_debug("%sunbinding the driver from the device\n", prefix);
 
 	igt_set_timeout(60, "Driver unbind timeout!");
-	igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
+	igt_assert_f(igt_sysfs_set(priv->fd.sysfs_drv, "unbind",
+				   priv->dev_bus_addr),
+		     "Driver unbind failure!\n");
 	igt_reset_timeout();
 }
 
@@ -105,7 +107,9 @@ static void driver_bind(struct hotunplug *priv)
 	igt_debug("rebinding the driver to the device\n");
 
 	igt_set_timeout(60, "Driver re-bind timeout!");
-	igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
+	igt_assert_f(igt_sysfs_set(priv->fd.sysfs_drv, "bind",
+				   priv->dev_bus_addr),
+		     "Driver re-bind failure\n!");
 	igt_reset_timeout();
 }
 
@@ -122,7 +126,8 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
 	igt_debug("%sunplugging the device\n", prefix);
 
 	igt_set_timeout(60, "Device unplug timeout!");
-	igt_sysfs_set(priv->fd.sysfs_dev, "remove", "1");
+	igt_assert_f(igt_sysfs_set(priv->fd.sysfs_dev, "remove", "1"),
+		     "Device unplug failure\n!");
 	igt_reset_timeout();
 
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
@@ -136,7 +141,8 @@ static void bus_rescan(struct hotunplug *priv)
 	igt_debug("recovering the device\n");
 
 	igt_set_timeout(60, "Bus rescan timeout!");
-	igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1");
+	igt_assert_f(igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1"),
+		       "Bus rescan failure!\n");
 	igt_reset_timeout();
 }
 
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 13/16] tests/core_hotunplug: Process return values of sysfs operations

[Janusz Krzysztofik]

Return values of driver bind/unbind / device remove/recover sysfs
operations are now ignored.  Assert their correctness.

v2: Add trailing newlines missing from igt_assert messages,
  - rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index a4902eba2..48affce9b 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -95,7 +95,9 @@ static void driver_unbind(struct hotunplug *priv, const char *prefix)
 	igt_debug("%sunbinding the driver from the device\n", prefix);
 
 	igt_set_timeout(60, "Driver unbind timeout!");
-	igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
+	igt_assert_f(igt_sysfs_set(priv->fd.sysfs_drv, "unbind",
+				   priv->dev_bus_addr),
+		     "Driver unbind failure!\n");
 	igt_reset_timeout();
 }
 
@@ -105,7 +107,9 @@ static void driver_bind(struct hotunplug *priv)
 	igt_debug("rebinding the driver to the device\n");
 
 	igt_set_timeout(60, "Driver re-bind timeout!");
-	igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
+	igt_assert_f(igt_sysfs_set(priv->fd.sysfs_drv, "bind",
+				   priv->dev_bus_addr),
+		     "Driver re-bind failure\n!");
 	igt_reset_timeout();
 }
 
@@ -122,7 +126,8 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
 	igt_debug("%sunplugging the device\n", prefix);
 
 	igt_set_timeout(60, "Device unplug timeout!");
-	igt_sysfs_set(priv->fd.sysfs_dev, "remove", "1");
+	igt_assert_f(igt_sysfs_set(priv->fd.sysfs_dev, "remove", "1"),
+		     "Device unplug failure\n!");
 	igt_reset_timeout();
 
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
@@ -136,7 +141,8 @@ static void bus_rescan(struct hotunplug *priv)
 	igt_debug("recovering the device\n");
 
 	igt_set_timeout(60, "Bus rescan timeout!");
-	igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1");
+	igt_assert_f(igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1"),
+		       "Bus rescan failure!\n");
 	igt_reset_timeout();
 }
 
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t v2 14/16] tests/core_hotunplug: Assert expected device presence/absence

[Janusz Krzysztofik]

Don't rely on successful write to sysfs control files, assert existence
/ non-existence of a respective device sysfs node as well.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 48affce9b..e8d04f8a7 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -99,6 +99,9 @@ static void driver_unbind(struct hotunplug *priv, const char *prefix)
 				   priv->dev_bus_addr),
 		     "Driver unbind failure!\n");
 	igt_reset_timeout();
+
+	igt_assert_f(faccessat(priv->fd.sysfs_drv, priv->dev_bus_addr, F_OK, 0),
+		     "Unbound device still present\n");
 }
 
 /* Re-bind the driver to the device */
@@ -111,6 +114,10 @@ static void driver_bind(struct hotunplug *priv)
 				   priv->dev_bus_addr),
 		     "Driver re-bind failure\n!");
 	igt_reset_timeout();
+
+	igt_fail_on_f(faccessat(priv->fd.sysfs_drv, priv->dev_bus_addr,
+				F_OK, 0),
+		      "Rebound device not present!\n");
 }
 
 /* Remove (virtually unplug) the device from its bus */
@@ -133,6 +140,9 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
 	priv->fd.sysfs_dev = local_close(priv->fd.sysfs_dev);
 	igt_assert_f(priv->fd.sysfs_dev == -1,
 		     "Device sysfs node close failed\n");
+
+	igt_assert_f(faccessat(priv->fd.sysfs_bus, priv->dev_bus_addr, F_OK, 0),
+		     "Unplugged device still present\n");
 }
 
 /* Re-discover the device by rescanning its bus */
@@ -144,6 +154,10 @@ static void bus_rescan(struct hotunplug *priv)
 	igt_assert_f(igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1"),
 		       "Bus rescan failure!\n");
 	igt_reset_timeout();
+
+	igt_fail_on_f(faccessat(priv->fd.sysfs_bus, priv->dev_bus_addr,
+				F_OK, 0),
+		      "Fakely unplugged device not rediscovered!\n");
 }
 
 static void cleanup(struct hotunplug *priv)
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] [PATCH i-g-t v2 15/16] tests/core_hotunplug: Explicitly ignore unused return values

[Janusz Krzysztofik]

Some return values are not useful and can be ignored.  Wrap those cases
inside igt_ignore_warn(), not only to make sure compilers are happy but
also to clearly document our decisions.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index e8d04f8a7..759cb8079 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -228,7 +228,7 @@ static void set_filter_from_device(int fd)
 	char path[PATH_MAX + 1];
 
 	igt_assert(igt_sysfs_path(fd, path, PATH_MAX));
-	strncat(path, "/device", PATH_MAX - strlen(path));
+	igt_ignore_warn(strncat(path, "/device", PATH_MAX - strlen(path)));
 	igt_assert(realpath(path, dst));
 
 	igt_device_filter_free_all();
@@ -368,7 +368,7 @@ igt_main
 	igt_fixture {
 		post_healthcheck(&priv);
 
-		close(priv.fd.sysfs_bus);
-		close(priv.fd.sysfs_drv);
+		igt_ignore_warn(close(priv.fd.sysfs_bus));
+		igt_ignore_warn(close(priv.fd.sysfs_drv));
 	}
 }
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] [PATCH i-g-t v2 15/16] tests/core_hotunplug: Explicitly ignore unused return values

[Janusz Krzysztofik]

Some return values are not useful and can be ignored.  Wrap those cases
inside igt_ignore_warn(), not only to make sure compilers are happy but
also to clearly document our decisions.

v2: Rebase on current upstream master.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 tests/core_hotunplug.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index e8d04f8a7..759cb8079 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -228,7 +228,7 @@ static void set_filter_from_device(int fd)
 	char path[PATH_MAX + 1];
 
 	igt_assert(igt_sysfs_path(fd, path, PATH_MAX));
-	strncat(path, "/device", PATH_MAX - strlen(path));
+	igt_ignore_warn(strncat(path, "/device", PATH_MAX - strlen(path)));
 	igt_assert(realpath(path, dst));
 
 	igt_device_filter_free_all();
@@ -368,7 +368,7 @@ igt_main
 	igt_fixture {
 		post_healthcheck(&priv);
 
-		close(priv.fd.sysfs_bus);
-		close(priv.fd.sysfs_drv);
+		igt_ignore_warn(close(priv.fd.sysfs_bus));
+		igt_ignore_warn(close(priv.fd.sysfs_drv));
 	}
 }
-- 
2.21.1

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[Intel-gfx] [PATCH i-g-t 16/16] tests/core_hotunplug: Un-blocklist *unbind* subtests

[Janusz Krzysztofik]

Subtests which don't remove the device, only unbind the driver from it,
seem relatively safe and harmless for CI.  Remove them from the CI
blocklist.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
---
 tests/intel-ci/blacklist.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/intel-ci/blacklist.txt b/tests/intel-ci/blacklist.txt
index f9a57cb54..25b567038 100644
--- a/tests/intel-ci/blacklist.txt
+++ b/tests/intel-ci/blacklist.txt
@@ -120,7 +120,7 @@ igt@perf_pmu@cpu-hotplug
 
 # Currently fails and leaves the machine in a very bad state, and
 # causes coverage loss for other tests.
-igt@core_hotunplug@.*
+igt@core_hotunplug@.*plug.*
 
 # hangs several gens of hosts, and has no immediate fix
 igt@device_reset@reset-bound
\ No newline at end of file
-- 
2.21.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[igt-dev] ✓ Fi.CI.BAT: success for tests/core_hotunplug: Fixes and enhancements (rev2)

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 5541 bytes --]

== Series Details ==

Series: tests/core_hotunplug: Fixes and enhancements (rev2)
URL   : https://patchwork.freedesktop.org/series/79671/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8854 -> IGTPW_4867
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/index.html

Known issues
------------

  Here are the changes found in IGTPW_4867 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_selftest@live@gt_lrc:
    - fi-tgl-u2:          [PASS][1] -> [DMESG-FAIL][2] ([i915#1233])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-tgl-u2/igt@i915_selftest@live@gt_lrc.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-tgl-u2/igt@i915_selftest@live@gt_lrc.html

  * igt@kms_chamelium@common-hpd-after-suspend:
    - fi-kbl-7500u:       [PASS][3] -> [DMESG-WARN][4] ([i915#2203])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-kbl-7500u/igt@kms_chamelium@common-hpd-after-suspend.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-kbl-7500u/igt@kms_chamelium@common-hpd-after-suspend.html

  
#### Possible fixes ####

  * igt@i915_pm_rpm@module-reload:
    - fi-bsw-n3050:       [DMESG-WARN][5] ([i915#1982]) -> [PASS][6]
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-bsw-n3050/igt@i915_pm_rpm@module-reload.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-bsw-n3050/igt@i915_pm_rpm@module-reload.html
    - fi-byt-j1900:       [DMESG-WARN][7] ([i915#1982]) -> [PASS][8]
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-byt-j1900/igt@i915_pm_rpm@module-reload.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-byt-j1900/igt@i915_pm_rpm@module-reload.html

  * igt@i915_selftest@live@execlists:
    - {fi-tgl-dsi}:       [INCOMPLETE][9] ([i915#2268]) -> [PASS][10]
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-tgl-dsi/igt@i915_selftest@live@execlists.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-tgl-dsi/igt@i915_selftest@live@execlists.html

  * igt@i915_selftest@live@gem_contexts:
    - fi-tgl-u2:          [INCOMPLETE][11] ([i915#2045]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-tgl-u2/igt@i915_selftest@live@gem_contexts.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-tgl-u2/igt@i915_selftest@live@gem_contexts.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - fi-bsw-kefka:       [DMESG-WARN][13] ([i915#1982]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-bsw-kefka/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-bsw-kefka/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  * igt@kms_flip@basic-flip-vs-wf_vblank@c-hdmi-a2:
    - fi-skl-guc:         [DMESG-WARN][15] ([i915#2203]) -> [PASS][16]
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-skl-guc/igt@kms_flip@basic-flip-vs-wf_vblank@c-hdmi-a2.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-skl-guc/igt@kms_flip@basic-flip-vs-wf_vblank@c-hdmi-a2.html

  
#### Warnings ####

  * igt@kms_flip@basic-flip-vs-dpms@a-dp1:
    - fi-kbl-x1275:       [DMESG-WARN][17] ([i915#62] / [i915#92]) -> [DMESG-WARN][18] ([i915#62] / [i915#92] / [i915#95])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-kbl-x1275/igt@kms_flip@basic-flip-vs-dpms@a-dp1.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-kbl-x1275/igt@kms_flip@basic-flip-vs-dpms@a-dp1.html

  * igt@kms_flip@basic-flip-vs-modeset@a-dp1:
    - fi-kbl-x1275:       [DMESG-WARN][19] ([i915#62] / [i915#92] / [i915#95]) -> [DMESG-WARN][20] ([i915#62] / [i915#92]) +4 similar issues
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/fi-kbl-x1275/igt@kms_flip@basic-flip-vs-modeset@a-dp1.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/fi-kbl-x1275/igt@kms_flip@basic-flip-vs-modeset@a-dp1.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [i915#1233]: https://gitlab.freedesktop.org/drm/intel/issues/1233
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2045]: https://gitlab.freedesktop.org/drm/intel/issues/2045
  [i915#2203]: https://gitlab.freedesktop.org/drm/intel/issues/2203
  [i915#2268]: https://gitlab.freedesktop.org/drm/intel/issues/2268
  [i915#62]: https://gitlab.freedesktop.org/drm/intel/issues/62
  [i915#92]: https://gitlab.freedesktop.org/drm/intel/issues/92
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (45 -> 38)
------------------------------

  Missing    (7): fi-ilk-m540 fi-hsw-4200u fi-byt-squawks fi-bsw-cyan fi-ctg-p8600 fi-byt-clapper fi-bdw-samus 


Build changes
-------------

  * CI: CI-20190529 -> None
  * IGT: IGT_5764 -> IGTPW_4867

  CI-20190529: 20190529
  CI_DRM_8854: 067ee09cd0a99c5ef86d0f780d7448ec416c036d @ git://anongit.freedesktop.org/gfx-ci/linux
  IGTPW_4867: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/index.html
  IGT_5764: 0f91c80b4c809cf48afff65a2ea68590389aa5ba @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/index.html

[-- Attachment #1.2: Type: text/html, Size: 7037 bytes --]

[-- Attachment #2: Type: text/plain, Size: 154 bytes --]

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[igt-dev] ✗ Fi.CI.IGT: failure for tests/core_hotunplug: Fixes and enhancements (rev2)

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 20549 bytes --]

== Series Details ==

Series: tests/core_hotunplug: Fixes and enhancements (rev2)
URL   : https://patchwork.freedesktop.org/series/79671/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_8854_full -> IGTPW_4867_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with IGTPW_4867_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in IGTPW_4867_full, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/index.html

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in IGTPW_4867_full:

### IGT changes ###

#### Possible regressions ####

  * {igt@core_hotunplug@hotunbind-lateclose} (NEW):
    - shard-hsw:          NOTRUN -> [INCOMPLETE][1] +1 similar issue
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw4/igt@core_hotunplug@hotunbind-lateclose.html

  * igt@gem_exec_store@dword@bcs0:
    - shard-iclb:         [PASS][2] -> [DMESG-WARN][3]
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb7/igt@gem_exec_store@dword@bcs0.html
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb8/igt@gem_exec_store@dword@bcs0.html

  * igt@gem_exec_store@dword@rcs0:
    - shard-tglb:         [PASS][4] -> [DMESG-FAIL][5]
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-tglb7/igt@gem_exec_store@dword@rcs0.html
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-tglb5/igt@gem_exec_store@dword@rcs0.html
    - shard-snb:          [PASS][6] -> [FAIL][7] +1 similar issue
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-snb5/igt@gem_exec_store@dword@rcs0.html
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-snb5/igt@gem_exec_store@dword@rcs0.html
    - shard-iclb:         [PASS][8] -> [FAIL][9]
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb7/igt@gem_exec_store@dword@rcs0.html
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb8/igt@gem_exec_store@dword@rcs0.html

  * igt@gen9_exec_parse@batch-invalid-length:
    - shard-glk:          [PASS][10] -> [FAIL][11]
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-glk1/igt@gen9_exec_parse@batch-invalid-length.html
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-glk2/igt@gen9_exec_parse@batch-invalid-length.html
    - shard-kbl:          [PASS][12] -> [FAIL][13]
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-kbl4/igt@gen9_exec_parse@batch-invalid-length.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-kbl1/igt@gen9_exec_parse@batch-invalid-length.html

  
#### Warnings ####

  * igt@runner@aborted:
    - shard-hsw:          [FAIL][14] ([i915#2283]) -> ([FAIL][15], [FAIL][16])
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-hsw1/igt@runner@aborted.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw2/igt@runner@aborted.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw4/igt@runner@aborted.html

  
New tests
---------

  New tests have been introduced between CI_DRM_8854_full and IGTPW_4867_full:

### New IGT tests (2) ###

  * igt@core_hotunplug@hotunbind-lateclose:
    - Statuses : 1 incomplete(s) 6 pass(s)
    - Exec time: [0.0, 1.64] s

  * igt@core_hotunplug@unbind-rebind:
    - Statuses : 1 incomplete(s) 6 pass(s)
    - Exec time: [0.0, 1.60] s

  

Known issues
------------

  Here are the changes found in IGTPW_4867_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_exec_whisper@basic-contexts-priority-all:
    - shard-glk:          [PASS][17] -> [DMESG-WARN][18] ([i915#118] / [i915#95])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-glk2/igt@gem_exec_whisper@basic-contexts-priority-all.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-glk8/igt@gem_exec_whisper@basic-contexts-priority-all.html

  * igt@gen9_exec_parse@batch-invalid-length:
    - shard-apl:          [PASS][19] -> [FAIL][20] ([i915#1635])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-apl4/igt@gen9_exec_parse@batch-invalid-length.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-apl7/igt@gen9_exec_parse@batch-invalid-length.html

  * igt@i915_pm_dc@dc6-psr:
    - shard-iclb:         [PASS][21] -> [FAIL][22] ([i915#1899])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb7/igt@i915_pm_dc@dc6-psr.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb8/igt@i915_pm_dc@dc6-psr.html

  * igt@kms_big_fb@linear-64bpp-rotate-180:
    - shard-glk:          [PASS][23] -> [DMESG-FAIL][24] ([i915#118] / [i915#95]) +1 similar issue
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-glk7/igt@kms_big_fb@linear-64bpp-rotate-180.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-glk8/igt@kms_big_fb@linear-64bpp-rotate-180.html

  * igt@kms_big_fb@x-tiled-64bpp-rotate-180:
    - shard-apl:          [PASS][25] -> [DMESG-WARN][26] ([i915#1635] / [i915#1982])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-apl6/igt@kms_big_fb@x-tiled-64bpp-rotate-180.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-apl7/igt@kms_big_fb@x-tiled-64bpp-rotate-180.html

  * igt@kms_color@pipe-c-ctm-green-to-red:
    - shard-hsw:          [PASS][27] -> [TIMEOUT][28] ([i915#1958])
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-hsw8/igt@kms_color@pipe-c-ctm-green-to-red.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw4/igt@kms_color@pipe-c-ctm-green-to-red.html

  * igt@kms_cursor_crc@pipe-a-cursor-256x85-sliding:
    - shard-glk:          [PASS][29] -> [FAIL][30] ([i915#54])
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-glk3/igt@kms_cursor_crc@pipe-a-cursor-256x85-sliding.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-glk3/igt@kms_cursor_crc@pipe-a-cursor-256x85-sliding.html

  * igt@kms_flip@flip-vs-suspend-interruptible@a-dp1:
    - shard-kbl:          [PASS][31] -> [DMESG-WARN][32] ([i915#180]) +8 similar issues
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-kbl1/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-kbl2/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html

  * igt@kms_frontbuffer_tracking@fbc-stridechange:
    - shard-tglb:         [PASS][33] -> [DMESG-WARN][34] ([i915#1982]) +6 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-tglb7/igt@kms_frontbuffer_tracking@fbc-stridechange.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-tglb3/igt@kms_frontbuffer_tracking@fbc-stridechange.html

  * igt@kms_psr@no_drrs:
    - shard-iclb:         [PASS][35] -> [FAIL][36] ([i915#173])
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb7/igt@kms_psr@no_drrs.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb1/igt@kms_psr@no_drrs.html

  * igt@kms_psr@psr2_cursor_render:
    - shard-iclb:         [PASS][37] -> [SKIP][38] ([fdo#109441]) +2 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb2/igt@kms_psr@psr2_cursor_render.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb1/igt@kms_psr@psr2_cursor_render.html

  * igt@perf@blocking:
    - shard-glk:          [PASS][39] -> [SKIP][40] ([fdo#109271] / [i915#1354]) +1 similar issue
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-glk4/igt@perf@blocking.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-glk2/igt@perf@blocking.html
    - shard-tglb:         [PASS][41] -> [SKIP][42] ([i915#1354]) +1 similar issue
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-tglb2/igt@perf@blocking.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-tglb5/igt@perf@blocking.html
    - shard-apl:          [PASS][43] -> [SKIP][44] ([fdo#109271] / [i915#1354] / [i915#1635]) +1 similar issue
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-apl6/igt@perf@blocking.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-apl7/igt@perf@blocking.html
    - shard-kbl:          [PASS][45] -> [SKIP][46] ([fdo#109271] / [i915#1354]) +1 similar issue
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-kbl1/igt@perf@blocking.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-kbl1/igt@perf@blocking.html

  * igt@perf@invalid-oa-exponent:
    - shard-iclb:         [PASS][47] -> [SKIP][48] ([i915#1354]) +1 similar issue
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb7/igt@perf@invalid-oa-exponent.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb8/igt@perf@invalid-oa-exponent.html

  * igt@perf@short-reads:
    - shard-hsw:          [PASS][49] -> [FAIL][50] ([i915#51])
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-hsw6/igt@perf@short-reads.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw6/igt@perf@short-reads.html

  * igt@prime_busy@hang-wait@bcs0:
    - shard-hsw:          [PASS][51] -> [FAIL][52] ([i915#2258]) +6 similar issues
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-hsw6/igt@prime_busy@hang-wait@bcs0.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw1/igt@prime_busy@hang-wait@bcs0.html

  
#### Possible fixes ####

  * igt@gem_ctx_isolation@preservation-s3@vecs0:
    - shard-kbl:          [DMESG-WARN][53] ([i915#180]) -> [PASS][54] +3 similar issues
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-kbl7/igt@gem_ctx_isolation@preservation-s3@vecs0.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-kbl1/igt@gem_ctx_isolation@preservation-s3@vecs0.html

  * igt@gem_exec_whisper@basic-fds-forked-all:
    - shard-glk:          [DMESG-WARN][55] ([i915#118] / [i915#95]) -> [PASS][56] +1 similar issue
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-glk6/igt@gem_exec_whisper@basic-fds-forked-all.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-glk2/igt@gem_exec_whisper@basic-fds-forked-all.html

  * igt@gen9_exec_parse@allowed-all:
    - shard-apl:          [DMESG-WARN][57] ([i915#1436] / [i915#1635] / [i915#716]) -> [PASS][58]
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-apl7/igt@gen9_exec_parse@allowed-all.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-apl8/igt@gen9_exec_parse@allowed-all.html

  * igt@i915_pm_dc@dc5-psr:
    - shard-iclb:         [INCOMPLETE][59] -> [PASS][60]
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb4/igt@i915_pm_dc@dc5-psr.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb5/igt@i915_pm_dc@dc5-psr.html

  * igt@i915_selftest@mock@contexts:
    - shard-apl:          [INCOMPLETE][61] ([i915#1635]) -> [PASS][62]
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-apl4/igt@i915_selftest@mock@contexts.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-apl6/igt@i915_selftest@mock@contexts.html

  * igt@kms_cursor_edge_walk@pipe-c-128x128-top-edge:
    - shard-glk:          [DMESG-WARN][63] ([i915#1982]) -> [PASS][64]
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-glk7/igt@kms_cursor_edge_walk@pipe-c-128x128-top-edge.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-glk5/igt@kms_cursor_edge_walk@pipe-c-128x128-top-edge.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-draw-render:
    - shard-kbl:          [DMESG-WARN][65] ([i915#1982]) -> [PASS][66] +1 similar issue
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-draw-render.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-draw-render.html

  * igt@kms_frontbuffer_tracking@fbc-2p-primscrn-spr-indfb-onoff:
    - shard-glk:          [FAIL][67] ([i915#49]) -> [PASS][68]
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-glk7/igt@kms_frontbuffer_tracking@fbc-2p-primscrn-spr-indfb-onoff.html
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-glk6/igt@kms_frontbuffer_tracking@fbc-2p-primscrn-spr-indfb-onoff.html

  * igt@kms_frontbuffer_tracking@fbc-shrfb-scaledprimary:
    - shard-iclb:         [DMESG-WARN][69] ([i915#1982]) -> [PASS][70]
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb8/igt@kms_frontbuffer_tracking@fbc-shrfb-scaledprimary.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb6/igt@kms_frontbuffer_tracking@fbc-shrfb-scaledprimary.html

  * igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-gtt:
    - shard-tglb:         [DMESG-WARN][71] ([i915#1982]) -> [PASS][72] +2 similar issues
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-tglb5/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-gtt.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-tglb7/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-gtt.html

  * igt@kms_psr2_su@page_flip:
    - shard-iclb:         [SKIP][73] ([fdo#109642] / [fdo#111068]) -> [PASS][74]
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb4/igt@kms_psr2_su@page_flip.html
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb2/igt@kms_psr2_su@page_flip.html

  * igt@kms_psr@psr2_primary_page_flip:
    - shard-iclb:         [SKIP][75] ([fdo#109441]) -> [PASS][76] +1 similar issue
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb6/igt@kms_psr@psr2_primary_page_flip.html
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb2/igt@kms_psr@psr2_primary_page_flip.html

  * igt@kms_setmode@basic:
    - shard-glk:          [FAIL][77] ([i915#31]) -> [PASS][78]
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-glk5/igt@kms_setmode@basic.html
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-glk6/igt@kms_setmode@basic.html

  * igt@perf@blocking-parameterized:
    - shard-iclb:         [FAIL][79] ([i915#1542]) -> [PASS][80]
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-iclb7/igt@perf@blocking-parameterized.html
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-iclb5/igt@perf@blocking-parameterized.html

  * igt@perf@polling-parameterized:
    - shard-kbl:          [FAIL][81] ([i915#1542]) -> [PASS][82]
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-kbl1/igt@perf@polling-parameterized.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-kbl4/igt@perf@polling-parameterized.html

  * igt@prime_busy@after-wait@vcs0:
    - shard-hsw:          [FAIL][83] ([i915#2258]) -> [PASS][84] +1 similar issue
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-hsw2/igt@prime_busy@after-wait@vcs0.html
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw6/igt@prime_busy@after-wait@vcs0.html

  * {igt@syncobj_timeline@etime-multi-wait-all-for-submit-submitted}:
    - shard-hsw:          [TIMEOUT][85] ([i915#1958]) -> [PASS][86] +3 similar issues
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-hsw5/igt@syncobj_timeline@etime-multi-wait-all-for-submit-submitted.html
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw1/igt@syncobj_timeline@etime-multi-wait-all-for-submit-submitted.html

  
#### Warnings ####

  * igt@gem_exec_reloc@basic-concurrent16:
    - shard-snb:          [FAIL][87] ([i915#1930]) -> [TIMEOUT][88] ([i915#1958])
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-snb4/igt@gem_exec_reloc@basic-concurrent16.html
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-snb2/igt@gem_exec_reloc@basic-concurrent16.html

  * igt@i915_suspend@fence-restore-untiled:
    - shard-kbl:          [INCOMPLETE][89] ([i915#155]) -> [DMESG-WARN][90] ([i915#180])
   [89]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-kbl4/igt@i915_suspend@fence-restore-untiled.html
   [90]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-kbl7/igt@i915_suspend@fence-restore-untiled.html

  * igt@kms_color@pipe-c-ctm-green-to-red:
    - shard-snb:          [SKIP][91] ([fdo#109271]) -> [TIMEOUT][92] ([i915#1958]) +1 similar issue
   [91]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-snb5/igt@kms_color@pipe-c-ctm-green-to-red.html
   [92]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-snb2/igt@kms_color@pipe-c-ctm-green-to-red.html

  * igt@kms_color_chamelium@pipe-b-ctm-0-5:
    - shard-hsw:          [TIMEOUT][93] ([i915#1958]) -> [SKIP][94] ([fdo#109271] / [fdo#111827])
   [93]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-hsw5/igt@kms_color_chamelium@pipe-b-ctm-0-5.html
   [94]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw5/igt@kms_color_chamelium@pipe-b-ctm-0-5.html

  * igt@kms_cursor_edge_walk@pipe-d-64x64-bottom-edge:
    - shard-hsw:          [SKIP][95] ([fdo#109271]) -> [TIMEOUT][96] ([i915#1958])
   [95]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8854/shard-hsw5/igt@kms_cursor_edge_walk@pipe-d-64x64-bottom-edge.html
   [96]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/shard-hsw4/igt@kms_cursor_edge_walk@pipe-d-64x64-bottom-edge.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#109642]: https://bugs.freedesktop.org/show_bug.cgi?id=109642
  [fdo#111068]: https://bugs.freedesktop.org/show_bug.cgi?id=111068
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1354]: https://gitlab.freedesktop.org/drm/intel/issues/1354
  [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
  [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
  [i915#155]: https://gitlab.freedesktop.org/drm/intel/issues/155
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#173]: https://gitlab.freedesktop.org/drm/intel/issues/173
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1899]: https://gitlab.freedesktop.org/drm/intel/issues/1899
  [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
  [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2258]: https://gitlab.freedesktop.org/drm/intel/issues/2258
  [i915#2283]: https://gitlab.freedesktop.org/drm/intel/issues/2283
  [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
  [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
  [i915#51]: https://gitlab.freedesktop.org/drm/intel/issues/51
  [i915#54]: https://gitlab.freedesktop.org/drm/intel/issues/54
  [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (11 -> 8)
------------------------------

  Missing    (3): pig-skl-6260u pig-glk-j5005 pig-icl-1065g7 


Build changes
-------------

  * CI: CI-20190529 -> None
  * IGT: IGT_5764 -> IGTPW_4867
  * Piglit: piglit_4509 -> None

  CI-20190529: 20190529
  CI_DRM_8854: 067ee09cd0a99c5ef86d0f780d7448ec416c036d @ git://anongit.freedesktop.org/gfx-ci/linux
  IGTPW_4867: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/index.html
  IGT_5764: 0f91c80b4c809cf48afff65a2ea68590389aa5ba @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4867/index.html

[-- Attachment #1.2: Type: text/html, Size: 24533 bytes --]

[-- Attachment #2: Type: text/plain, Size: 154 bytes --]

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

Re: [Intel-gfx] [PATCH i-g-t v2 00/16] tests/core_hotunplug: Fixes and enhancements

[Janusz Krzysztofik]

On Fri, 2020-08-07 at 11:19 +0200, Janusz Krzysztofik wrote:
> Clean up the test code and unblock unbind variants.

From the CI report it looks for me like driver (hot)unbind-rebind
operations affect hardware and the driver doesn't handle this
correctly.  Moreover, the test doesn't currently detect this faulty
condition and happily returns success.

On the other hand, the hardware seems not stuck permanently, it looks
like it just requires engines to be reset.

Then, I'm going to extend the series with a more thorough health check
and a more careful recovery.  The unbind-rebind subtest shall report a
failure as soon as it detects that engines require a reset, I believe,
but igt_abort shall not be called unless the recovery phase fails.

Thanks,
Janusz

> 
> @Michał: Since most v2 updates are trivial, I've preserved your
> Reviewd-by: except for patch 11/16 "Follow failed subtests with health
> checks" - please have a look and confirm if you are still OK with it.
> 
> Thanks,
> Janusz
> 
> Janusz Krzysztofik (16):
>   tests/core_hotunplug: Use igt_assert_fd()
>   tests/core_hotunplug: Constify dev_bus_addr string
>   tests/core_hotunplug: Consolidate duplicated debug messages
>   tests/core_hotunplug: Assert successful device filter application
>   tests/core_hotunplug: Fix missing newline
>   tests/core_hotunplug: Maintain a single data structure instance
>   tests/core_hotunplug: Pass errors via a data structure field
>   tests/core_hotunplug: Handle device close errors
>   tests/core_hotunplug: Prepare invariant data once per test run
>   tests/core_hotunplug: Skip selectively on sysfs close errors
>   tests/core_hotunplug: Follow failed subtests with health checks
>   tests/core_hotunplug: Fail subtests on device close errors
>   tests/core_hotunplug: Process return values of sysfs operations
>   tests/core_hotunplug: Assert expected device presence/absence
>   tests/core_hotunplug: Explicitly ignore unused return values
>   tests/core_hotunplug: Un-blocklist *unbind* subtests
> 
>  tests/core_hotunplug.c       | 334 +++++++++++++++++++++--------------
>  tests/intel-ci/blacklist.txt |   2 +-
>  2 files changed, 204 insertions(+), 132 deletions(-)
> 

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Re: [igt-dev] [PATCH i-g-t v2 00/16] tests/core_hotunplug: Fixes and enhancements

[Janusz Krzysztofik]

On Fri, 2020-08-07 at 11:19 +0200, Janusz Krzysztofik wrote:
> Clean up the test code and unblock unbind variants.

From the CI report it looks for me like driver (hot)unbind-rebind
operations affect hardware and the driver doesn't handle this
correctly.  Moreover, the test doesn't currently detect this faulty
condition and happily returns success.

On the other hand, the hardware seems not stuck permanently, it looks
like it just requires engines to be reset.

Then, I'm going to extend the series with a more thorough health check
and a more careful recovery.  The unbind-rebind subtest shall report a
failure as soon as it detects that engines require a reset, I believe,
but igt_abort shall not be called unless the recovery phase fails.

Thanks,
Janusz

> 
> @Michał: Since most v2 updates are trivial, I've preserved your
> Reviewd-by: except for patch 11/16 "Follow failed subtests with health
> checks" - please have a look and confirm if you are still OK with it.
> 
> Thanks,
> Janusz
> 
> Janusz Krzysztofik (16):
>   tests/core_hotunplug: Use igt_assert_fd()
>   tests/core_hotunplug: Constify dev_bus_addr string
>   tests/core_hotunplug: Consolidate duplicated debug messages
>   tests/core_hotunplug: Assert successful device filter application
>   tests/core_hotunplug: Fix missing newline
>   tests/core_hotunplug: Maintain a single data structure instance
>   tests/core_hotunplug: Pass errors via a data structure field
>   tests/core_hotunplug: Handle device close errors
>   tests/core_hotunplug: Prepare invariant data once per test run
>   tests/core_hotunplug: Skip selectively on sysfs close errors
>   tests/core_hotunplug: Follow failed subtests with health checks
>   tests/core_hotunplug: Fail subtests on device close errors
>   tests/core_hotunplug: Process return values of sysfs operations
>   tests/core_hotunplug: Assert expected device presence/absence
>   tests/core_hotunplug: Explicitly ignore unused return values
>   tests/core_hotunplug: Un-blocklist *unbind* subtests
> 
>  tests/core_hotunplug.c       | 334 +++++++++++++++++++++--------------
>  tests/intel-ci/blacklist.txt |   2 +-
>  2 files changed, 204 insertions(+), 132 deletions(-)
> 

_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev