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path: root/drivers/s390/crypto/ap_bus.c
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Diffstat (limited to 'drivers/s390/crypto/ap_bus.c')
-rw-r--r--drivers/s390/crypto/ap_bus.c31
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 02300dcfac91..ab3baa7f9508 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -591,7 +591,13 @@ static int ap_init_queue(ap_qid_t qid)
if (rc != -ENODEV && rc != -EBUSY)
break;
if (i < AP_MAX_RESET - 1) {
- udelay(5);
+ /* Time we are waiting until we give up (0.7sec * 90).
+ * Since the actual request (in progress) will not
+ * interrupted immediately for the reset command,
+ * we have to be patient. In worst case we have to
+ * wait 60sec + reset time (some msec).
+ */
+ schedule_timeout(AP_RESET_TIMEOUT);
status = ap_test_queue(qid, &dummy, &dummy);
}
}
@@ -992,6 +998,28 @@ static ssize_t ap_domain_show(struct bus_type *bus, char *buf)
static BUS_ATTR(ap_domain, 0444, ap_domain_show, NULL);
+static ssize_t ap_control_domain_mask_show(struct bus_type *bus, char *buf)
+{
+ if (ap_configuration != NULL) { /* QCI not supported */
+ if (test_facility(76)) { /* format 1 - 256 bit domain field */
+ return snprintf(buf, PAGE_SIZE,
+ "0x%08x%08x%08x%08x%08x%08x%08x%08x\n",
+ ap_configuration->adm[0], ap_configuration->adm[1],
+ ap_configuration->adm[2], ap_configuration->adm[3],
+ ap_configuration->adm[4], ap_configuration->adm[5],
+ ap_configuration->adm[6], ap_configuration->adm[7]);
+ } else { /* format 0 - 16 bit domain field */
+ return snprintf(buf, PAGE_SIZE, "%08x%08x\n",
+ ap_configuration->adm[0], ap_configuration->adm[1]);
+ }
+ } else {
+ return snprintf(buf, PAGE_SIZE, "not supported\n");
+ }
+}
+
+static BUS_ATTR(ap_control_domain_mask, 0444,
+ ap_control_domain_mask_show, NULL);
+
static ssize_t ap_config_time_show(struct bus_type *bus, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n", ap_config_time);
@@ -1077,6 +1105,7 @@ static BUS_ATTR(poll_timeout, 0644, poll_timeout_show, poll_timeout_store);
static struct bus_attribute *const ap_bus_attrs[] = {
&bus_attr_ap_domain,
+ &bus_attr_ap_control_domain_mask,
&bus_attr_config_time,
&bus_attr_poll_thread,
&bus_attr_ap_interrupts,