aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/s390/crypto/zcrypt_api.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390/crypto/zcrypt_api.c')
-rw-r--r--drivers/s390/crypto/zcrypt_api.c182
1 files changed, 133 insertions, 49 deletions
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 63cfdefe0537..5efd84862ccb 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -605,19 +605,24 @@ out:
return rc;
}
-void zcrypt_device_status_mask(struct zcrypt_device_matrix *matrix)
+static void zcrypt_device_status_mask(struct zcrypt_device_status *devstatus)
{
struct zcrypt_card *zc;
struct zcrypt_queue *zq;
struct zcrypt_device_status *stat;
+ int card, queue;
+
+ memset(devstatus, 0, MAX_ZDEV_ENTRIES
+ * sizeof(struct zcrypt_device_status));
- memset(matrix, 0, sizeof(*matrix));
spin_lock(&zcrypt_list_lock);
for_each_zcrypt_card(zc) {
for_each_zcrypt_queue(zq, zc) {
- stat = matrix->device;
- stat += AP_QID_CARD(zq->queue->qid) * MAX_ZDEV_DOMAINS;
- stat += AP_QID_QUEUE(zq->queue->qid);
+ card = AP_QID_CARD(zq->queue->qid);
+ if (card >= MAX_ZDEV_CARDIDS)
+ continue;
+ queue = AP_QID_QUEUE(zq->queue->qid);
+ stat = &devstatus[card * AP_DOMAINS + queue];
stat->hwtype = zc->card->ap_dev.device_type;
stat->functions = zc->card->functions >> 26;
stat->qid = zq->queue->qid;
@@ -626,40 +631,70 @@ void zcrypt_device_status_mask(struct zcrypt_device_matrix *matrix)
}
spin_unlock(&zcrypt_list_lock);
}
-EXPORT_SYMBOL(zcrypt_device_status_mask);
-static void zcrypt_status_mask(char status[AP_DEVICES])
+void zcrypt_device_status_mask_ext(struct zcrypt_device_status_ext *devstatus)
{
struct zcrypt_card *zc;
struct zcrypt_queue *zq;
+ struct zcrypt_device_status_ext *stat;
+ int card, queue;
+
+ memset(devstatus, 0, MAX_ZDEV_ENTRIES_EXT
+ * sizeof(struct zcrypt_device_status_ext));
- memset(status, 0, sizeof(char) * AP_DEVICES);
spin_lock(&zcrypt_list_lock);
for_each_zcrypt_card(zc) {
for_each_zcrypt_queue(zq, zc) {
- if (AP_QID_QUEUE(zq->queue->qid) != ap_domain_index)
+ card = AP_QID_CARD(zq->queue->qid);
+ queue = AP_QID_QUEUE(zq->queue->qid);
+ stat = &devstatus[card * AP_DOMAINS + queue];
+ stat->hwtype = zc->card->ap_dev.device_type;
+ stat->functions = zc->card->functions >> 26;
+ stat->qid = zq->queue->qid;
+ stat->online = zq->online ? 0x01 : 0x00;
+ }
+ }
+ spin_unlock(&zcrypt_list_lock);
+}
+EXPORT_SYMBOL(zcrypt_device_status_mask_ext);
+
+static void zcrypt_status_mask(char status[], size_t max_adapters)
+{
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
+ int card;
+
+ memset(status, 0, max_adapters);
+ spin_lock(&zcrypt_list_lock);
+ for_each_zcrypt_card(zc) {
+ for_each_zcrypt_queue(zq, zc) {
+ card = AP_QID_CARD(zq->queue->qid);
+ if (AP_QID_QUEUE(zq->queue->qid) != ap_domain_index
+ || card >= max_adapters)
continue;
- status[AP_QID_CARD(zq->queue->qid)] =
- zc->online ? zc->user_space_type : 0x0d;
+ status[card] = zc->online ? zc->user_space_type : 0x0d;
}
}
spin_unlock(&zcrypt_list_lock);
}
-static void zcrypt_qdepth_mask(char qdepth[AP_DEVICES])
+static void zcrypt_qdepth_mask(char qdepth[], size_t max_adapters)
{
struct zcrypt_card *zc;
struct zcrypt_queue *zq;
+ int card;
- memset(qdepth, 0, sizeof(char) * AP_DEVICES);
+ memset(qdepth, 0, max_adapters);
spin_lock(&zcrypt_list_lock);
local_bh_disable();
for_each_zcrypt_card(zc) {
for_each_zcrypt_queue(zq, zc) {
- if (AP_QID_QUEUE(zq->queue->qid) != ap_domain_index)
+ card = AP_QID_CARD(zq->queue->qid);
+ if (AP_QID_QUEUE(zq->queue->qid) != ap_domain_index
+ || card >= max_adapters)
continue;
spin_lock(&zq->queue->lock);
- qdepth[AP_QID_CARD(zq->queue->qid)] =
+ qdepth[card] =
zq->queue->pendingq_count +
zq->queue->requestq_count;
spin_unlock(&zq->queue->lock);
@@ -669,21 +704,23 @@ static void zcrypt_qdepth_mask(char qdepth[AP_DEVICES])
spin_unlock(&zcrypt_list_lock);
}
-static void zcrypt_perdev_reqcnt(int reqcnt[AP_DEVICES])
+static void zcrypt_perdev_reqcnt(int reqcnt[], size_t max_adapters)
{
struct zcrypt_card *zc;
struct zcrypt_queue *zq;
+ int card;
- memset(reqcnt, 0, sizeof(int) * AP_DEVICES);
+ memset(reqcnt, 0, sizeof(int) * max_adapters);
spin_lock(&zcrypt_list_lock);
local_bh_disable();
for_each_zcrypt_card(zc) {
for_each_zcrypt_queue(zq, zc) {
- if (AP_QID_QUEUE(zq->queue->qid) != ap_domain_index)
+ card = AP_QID_CARD(zq->queue->qid);
+ if (AP_QID_QUEUE(zq->queue->qid) != ap_domain_index
+ || card >= max_adapters)
continue;
spin_lock(&zq->queue->lock);
- reqcnt[AP_QID_CARD(zq->queue->qid)] =
- zq->queue->total_request_count;
+ reqcnt[card] = zq->queue->total_request_count;
spin_unlock(&zq->queue->lock);
}
}
@@ -740,7 +777,7 @@ static int zcrypt_requestq_count(void)
static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
- int rc;
+ int rc = 0;
switch (cmd) {
case ICARSAMODEXPO: {
@@ -819,48 +856,48 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
return -EFAULT;
return rc;
}
- case ZDEVICESTATUS: {
- struct zcrypt_device_matrix *device_status;
+ case ZCRYPT_DEVICE_STATUS: {
+ struct zcrypt_device_status_ext *device_status;
+ size_t total_size = MAX_ZDEV_ENTRIES_EXT
+ * sizeof(struct zcrypt_device_status_ext);
- device_status = kzalloc(sizeof(struct zcrypt_device_matrix),
- GFP_KERNEL);
+ device_status = kzalloc(total_size, GFP_KERNEL);
if (!device_status)
return -ENOMEM;
-
- zcrypt_device_status_mask(device_status);
-
+ zcrypt_device_status_mask_ext(device_status);
if (copy_to_user((char __user *) arg, device_status,
- sizeof(struct zcrypt_device_matrix))) {
- kfree(device_status);
- return -EFAULT;
- }
-
+ total_size))
+ rc = -EFAULT;
kfree(device_status);
- return 0;
+ return rc;
}
- case Z90STAT_STATUS_MASK: {
+ case ZCRYPT_STATUS_MASK: {
char status[AP_DEVICES];
- zcrypt_status_mask(status);
- if (copy_to_user((char __user *) arg, status,
- sizeof(char) * AP_DEVICES))
+
+ zcrypt_status_mask(status, AP_DEVICES);
+ if (copy_to_user((char __user *) arg, status, sizeof(status)))
return -EFAULT;
return 0;
}
- case Z90STAT_QDEPTH_MASK: {
+ case ZCRYPT_QDEPTH_MASK: {
char qdepth[AP_DEVICES];
- zcrypt_qdepth_mask(qdepth);
- if (copy_to_user((char __user *) arg, qdepth,
- sizeof(char) * AP_DEVICES))
+
+ zcrypt_qdepth_mask(qdepth, AP_DEVICES);
+ if (copy_to_user((char __user *) arg, qdepth, sizeof(qdepth)))
return -EFAULT;
return 0;
}
- case Z90STAT_PERDEV_REQCNT: {
- int reqcnt[AP_DEVICES];
- zcrypt_perdev_reqcnt(reqcnt);
- if (copy_to_user((int __user *) arg, reqcnt,
- sizeof(int) * AP_DEVICES))
- return -EFAULT;
- return 0;
+ case ZCRYPT_PERDEV_REQCNT: {
+ int *reqcnt;
+
+ reqcnt = kcalloc(AP_DEVICES, sizeof(int), GFP_KERNEL);
+ if (!reqcnt)
+ return -ENOMEM;
+ zcrypt_perdev_reqcnt(reqcnt, AP_DEVICES);
+ if (copy_to_user((int __user *) arg, reqcnt, sizeof(reqcnt)))
+ rc = -EFAULT;
+ kfree(reqcnt);
+ return rc;
}
case Z90STAT_REQUESTQ_COUNT:
return put_user(zcrypt_requestq_count(), (int __user *) arg);
@@ -871,8 +908,55 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
(int __user *) arg);
case Z90STAT_DOMAIN_INDEX:
return put_user(ap_domain_index, (int __user *) arg);
+ /*
+ * Deprecated ioctls
+ */
+ case ZDEVICESTATUS: {
+ /* the old ioctl supports only 64 adapters */
+ struct zcrypt_device_status *device_status;
+ size_t total_size = MAX_ZDEV_ENTRIES
+ * sizeof(struct zcrypt_device_status);
+
+ device_status = kzalloc(total_size, GFP_KERNEL);
+ if (!device_status)
+ return -ENOMEM;
+ zcrypt_device_status_mask(device_status);
+ if (copy_to_user((char __user *) arg, device_status,
+ total_size))
+ rc = -EFAULT;
+ kfree(device_status);
+ return rc;
+ }
+ case Z90STAT_STATUS_MASK: {
+ /* the old ioctl supports only 64 adapters */
+ char status[MAX_ZDEV_CARDIDS];
+
+ zcrypt_status_mask(status, MAX_ZDEV_CARDIDS);
+ if (copy_to_user((char __user *) arg, status, sizeof(status)))
+ return -EFAULT;
+ return 0;
+ }
+ case Z90STAT_QDEPTH_MASK: {
+ /* the old ioctl supports only 64 adapters */
+ char qdepth[MAX_ZDEV_CARDIDS];
+
+ zcrypt_qdepth_mask(qdepth, MAX_ZDEV_CARDIDS);
+ if (copy_to_user((char __user *) arg, qdepth, sizeof(qdepth)))
+ return -EFAULT;
+ return 0;
+ }
+ case Z90STAT_PERDEV_REQCNT: {
+ /* the old ioctl supports only 64 adapters */
+ int reqcnt[MAX_ZDEV_CARDIDS];
+
+ zcrypt_perdev_reqcnt(reqcnt, MAX_ZDEV_CARDIDS);
+ if (copy_to_user((int __user *) arg, reqcnt, sizeof(reqcnt)))
+ return -EFAULT;
+ return 0;
+ }
/* unknown ioctl number */
default:
+ ZCRYPT_DBF(DBF_DEBUG, "unknown ioctl 0x%08x\n", cmd);
return -ENOIOCTLCMD;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-24 00:54:52 +0000