From 42f4dd613fe808676126472bbe1283e452201148 Mon Sep 17 00:00:00 2001 From: Ingo Tuchscherer Date: Thu, 2 Oct 2014 14:48:46 +0200 Subject: [PATCH] s390/zcrypt: Toleration of new crypto hardware The zcrypt device driver will accept the new crypto adapter in toleration mode. A new sysfs attribute 'raw_hwtype' will expose the raw hardware type. Signed-off-by: Ingo Tuchscherer Signed-off-by: Harald Freudenberger --- drivers/s390/crypto/ap_bus.c | 16 ++++++++++++++++ drivers/s390/crypto/ap_bus.h | 1 + 2 files changed, 17 insertions(+) diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 51e6aa0e2e58..99485415dcc2 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -664,6 +664,17 @@ static ssize_t ap_hwtype_show(struct device *dev, } static DEVICE_ATTR(hwtype, 0444, ap_hwtype_show, NULL); + +static ssize_t ap_raw_hwtype_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + + return snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->raw_hwtype); +} + +static DEVICE_ATTR(raw_hwtype, 0444, ap_raw_hwtype_show, NULL); + static ssize_t ap_depth_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -734,6 +745,7 @@ static DEVICE_ATTR(ap_functions, 0444, ap_functions_show, NULL); static struct attribute *ap_dev_attrs[] = { &dev_attr_hwtype.attr, + &dev_attr_raw_hwtype.attr, &dev_attr_depth.attr, &dev_attr_request_count.attr, &dev_attr_requestq_count.attr, @@ -1417,9 +1429,13 @@ static void ap_scan_bus(struct work_struct *unused) continue; } break; + case 11: + ap_dev->device_type = 10; + break; default: ap_dev->device_type = device_type; } + ap_dev->raw_hwtype = device_type; rc = ap_query_functions(qid, &device_functions); if (!rc) diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h index db92e9fa5c07..055a0f956d17 100644 --- a/drivers/s390/crypto/ap_bus.h +++ b/drivers/s390/crypto/ap_bus.h @@ -161,6 +161,7 @@ struct ap_device { ap_qid_t qid; /* AP queue id. */ int queue_depth; /* AP queue depth.*/ int device_type; /* AP device type. */ + int raw_hwtype; /* AP raw hardware type. */ unsigned int functions; /* AP device function bitfield. */ int unregistered; /* marks AP device as unregistered */ struct timer_list timeout; /* Timer for request timeouts. */ -- 2.30.2