From aa55bf5f022271903fe8a71e08be3e217e1b6363 Mon Sep 17 00:00:00 2001 From: Harald Freudenberger Date: Mon, 1 Oct 2018 15:29:01 +0200 Subject: 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 Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/ap_bus.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers/s390/crypto/ap_bus.c') 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, -- cgit v1.2.3-59-g8ed1b