diff options
Diffstat (limited to 'drivers/s390/crypto/ap_card.c')
| -rw-r--r-- | drivers/s390/crypto/ap_card.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/s390/crypto/ap_card.c b/drivers/s390/crypto/ap_card.c index ca9afc5fcaf7..196325a66662 100644 --- a/drivers/s390/crypto/ap_card.c +++ b/drivers/s390/crypto/ap_card.c @@ -174,6 +174,16 @@ static ssize_t config_store(struct device *dev, static DEVICE_ATTR_RW(config); +static ssize_t max_msg_size_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ap_card *ac = to_ap_card(dev); + + return scnprintf(buf, PAGE_SIZE, "%u\n", ac->maxmsgsize); +} + +static DEVICE_ATTR_RO(max_msg_size); + static struct attribute *ap_card_dev_attrs[] = { &dev_attr_hwtype.attr, &dev_attr_raw_hwtype.attr, @@ -184,6 +194,7 @@ static struct attribute *ap_card_dev_attrs[] = { &dev_attr_pendingq_count.attr, &dev_attr_modalias.attr, &dev_attr_config.attr, + &dev_attr_max_msg_size.attr, NULL }; @@ -209,7 +220,7 @@ static void ap_card_device_release(struct device *dev) } struct ap_card *ap_card_create(int id, int queue_depth, int raw_type, - int comp_type, unsigned int functions) + int comp_type, unsigned int functions, int ml) { struct ap_card *ac; @@ -223,5 +234,8 @@ struct ap_card *ap_card_create(int id, int queue_depth, int raw_type, ac->queue_depth = queue_depth; ac->functions = functions; ac->id = id; + ac->maxmsgsize = ml > 0 ? + ml * AP_TAPQ_ML_FIELD_CHUNK_SIZE : AP_DEFAULT_MAX_MSG_SIZE; + return ac; } |