diff options
| author |   Harald Freudenberger <freude@linux.ibm.com> | 2018-10-01 15:29:01 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-10-09 11:21:37 +0200 |
| commit | aa55bf5f022271903fe8a71e08be3e217e1b6363 (patch) | |
| tree | a965c4bf8283edb8eda3f4aa9b4b94390127a0ad /drivers/s390/crypto/ap_bus.c | |
| parent | s390/zcrypt: provide apfs failure code on type 86 error reply (diff) | |
| download | linux-dev-aa55bf5f022271903fe8a71e08be3e217e1b6363.tar.xz linux-dev-aa55bf5f022271903fe8a71e08be3e217e1b6363.zip | |
s390/zcrypt: add ap_adapter_mask sysfs attribute
This patch provides a new sysfs attribute file
/sys/bus/ap/ap_adapter_mask. This read-only attribute
refrects the apm field as it is found in the PQAP(QCI)
crypto info.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 15bca7583bb9..048665e4f13d 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1037,6 +1037,21 @@ static ssize_t ap_usage_domain_mask_show(struct bus_type *bus, char *buf) static BUS_ATTR_RO(ap_usage_domain_mask); +static ssize_t ap_adapter_mask_show(struct bus_type *bus, char *buf) +{ + if (!ap_configuration) /* QCI not supported */ + return snprintf(buf, PAGE_SIZE, "not supported\n"); + + return snprintf(buf, PAGE_SIZE, + "0x%08x%08x%08x%08x%08x%08x%08x%08x\n", + ap_configuration->apm[0], ap_configuration->apm[1], + ap_configuration->apm[2], ap_configuration->apm[3], + ap_configuration->apm[4], ap_configuration->apm[5], + ap_configuration->apm[6], ap_configuration->apm[7]); +} + +static BUS_ATTR_RO(ap_adapter_mask); + static ssize_t ap_interrupts_show(struct bus_type *bus, char *buf) { return snprintf(buf, PAGE_SIZE, "%d\n", @@ -1195,6 +1210,7 @@ static struct bus_attribute *const ap_bus_attrs[] = { &bus_attr_ap_domain, &bus_attr_ap_control_domain_mask, &bus_attr_ap_usage_domain_mask, + &bus_attr_ap_adapter_mask, &bus_attr_config_time, &bus_attr_poll_thread, &bus_attr_ap_interrupts, |