diff options
| author | Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com> | 2014-10-02 14:48:46 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-10-09 09:14:05 +0200 |
| commit | 42f4dd613fe808676126472bbe1283e452201148 (patch) | |
| tree | 0ad7eafe02f39820ad03d6cf717f52f696e5df4b /drivers/s390 | |
| parent | s390/idle: consolidate idle functions and definitions (diff) | |
| download | linux-42f4dd613fe808676126472bbe1283e452201148.tar.xz linux-42f4dd613fe808676126472bbe1283e452201148.zip | |
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 <ingo.tuchscherer@de.ibm.com>
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 16 | ||||
| -rw-r--r-- | drivers/s390/crypto/ap_bus.h | 1 |
2 files changed, 17 insertions, 0 deletions
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. */ |