Checking return values for CSCH for various configurations.
Signed-off-by: Pierre Morel <pmorel@xxxxxxxxxxxxx>
---
s390x/css.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 64 insertions(+)
diff --git a/s390x/css.c b/s390x/css.c
index 0f80a44..00c77c7 100644
--- a/s390x/css.c
+++ b/s390x/css.c
@@ -362,6 +362,69 @@ static void test_hsch(void)
free_io_mem(ccw, sizeof(*ccw));
}
+static void test_csch(void)
+{
+ struct orb orb = {
+ .intparm = test_device_sid,
+ .ctrl = ORB_CTRL_ISIC | ORB_CTRL_FMT | ORB_LPM_DFLT,
+ };
+ struct ccw1 *ccw;
+
+ senseid = alloc_io_mem(sizeof(*senseid), 0);
+ assert(senseid);
+ ccw = ccw_alloc(CCW_CMD_SENSE_ID, senseid, sizeof(*senseid), CCW_F_SLI);
+ assert(ccw);
+ orb.cpa = (uint64_t)ccw;
+
+ /* CSCH is a privilege operation */
+ report_prefix_push("Privilege");
+ enter_pstate();
+ expect_pgm_int();
+ csch(test_device_sid);
+ check_pgm_int_code(PGM_INT_CODE_PRIVILEGED_OPERATION);
+ report_prefix_pop();
+
+ /* Basic check for CSCH */
+ report_prefix_push("CSCH on a quiet subchannel");
+ assert(css_enable(test_device_sid, 0) == 0);
+ report(csch(test_device_sid) == 0, "subchannel clear");
+ report_prefix_pop();
+
+ /* now we check the flags */
+ report_prefix_push("IRQ flags");
+ assert(tsch(test_device_sid, &irb) == 0);
+ report(check_io_completion(test_device_sid, SCSW_CSCH_COMPLETED) == 0, "expected");
+ report_prefix_pop();
+
+ /* We want to check if the IRQ flags of SSCH are erased by clear */
+ report_prefix_push("CSCH on SSCH status pending subchannel");
+ assert(ssch(test_device_sid, &orb) == 0);
+ report(csch(test_device_sid) == 0, "subchannel cleared");
+ assert(tsch(test_device_sid, &irb) == 0);
+ check_io_completion(test_device_sid, SCSW_CSCH_COMPLETED |
+ SCSW_SC_SECONDARY | SCSW_SC_PRIMARY);
+ report_prefix_pop();
+
+ /* Checking CSCH after HSCH */
+ report_prefix_push("CSCH on a halted subchannel");
+ assert(hsch(test_device_sid) == 0);
+ report(csch(test_device_sid) == 0, "subchannel cleared");
+ assert(tsch(test_device_sid, &irb) == 0);
+ check_io_completion(test_device_sid, SCSW_CSCH_COMPLETED);
+ report_prefix_pop();
+
+ /* Checking CSCH after CSCH */
+ report_prefix_push("CSCH on a cleared subchannel");
+ assert(csch(test_device_sid) == 0);
+ report(csch(test_device_sid) == 0, "subchannel cleared");
+ assert(tsch(test_device_sid, &irb) == 0);
+ check_io_completion(test_device_sid, SCSW_CSCH_COMPLETED);
+ report_prefix_pop();
+
+ free_io_mem(senseid, sizeof(*senseid));
+ free_io_mem(ccw, sizeof(*ccw));
+}
+
/*
* test_sense
* Pre-requisites:
@@ -632,6 +695,7 @@ static struct tests tests[] = {
{ "enable (msch)", test_enable },
{ "start subchannel", test_ssch },
{ "halt subchannel", test_hsch },
+ { "clear subchannel", test_csch },
{ "sense (ssch/tsch)", test_sense },
{ "measurement block (schm)", test_schm },
{ "measurement block format0", test_schm_fmt0 },
--
2.17.1
