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path: root/drivers/s390/crypto/zcrypt_api.c
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Diffstat (limited to 'drivers/s390/crypto/zcrypt_api.c')
-rw-r--r--drivers/s390/crypto/zcrypt_api.c1137
1 files changed, 572 insertions, 565 deletions
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 5d3d04c040c2..854a6e58dfea 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -41,10 +41,14 @@
#include <linux/debugfs.h>
#include <asm/debug.h>
-#include "zcrypt_debug.h"
+#define CREATE_TRACE_POINTS
+#include <asm/trace/zcrypt.h>
+
#include "zcrypt_api.h"
+#include "zcrypt_debug.h"
#include "zcrypt_msgtype6.h"
+#include "zcrypt_msgtype50.h"
/*
* Module description.
@@ -54,76 +58,31 @@ MODULE_DESCRIPTION("Cryptographic Coprocessor interface, " \
"Copyright IBM Corp. 2001, 2012");
MODULE_LICENSE("GPL");
+/*
+ * zcrypt tracepoint functions
+ */
+EXPORT_TRACEPOINT_SYMBOL(s390_zcrypt_req);
+EXPORT_TRACEPOINT_SYMBOL(s390_zcrypt_rep);
+
static int zcrypt_hwrng_seed = 1;
module_param_named(hwrng_seed, zcrypt_hwrng_seed, int, S_IRUSR|S_IRGRP);
MODULE_PARM_DESC(hwrng_seed, "Turn on/off hwrng auto seed, default is 1 (on).");
-static DEFINE_SPINLOCK(zcrypt_device_lock);
-static LIST_HEAD(zcrypt_device_list);
-static int zcrypt_device_count = 0;
+DEFINE_SPINLOCK(zcrypt_list_lock);
+LIST_HEAD(zcrypt_card_list);
+int zcrypt_device_count;
+
static atomic_t zcrypt_open_count = ATOMIC_INIT(0);
static atomic_t zcrypt_rescan_count = ATOMIC_INIT(0);
atomic_t zcrypt_rescan_req = ATOMIC_INIT(0);
EXPORT_SYMBOL(zcrypt_rescan_req);
-static int zcrypt_rng_device_add(void);
-static void zcrypt_rng_device_remove(void);
-
-static DEFINE_SPINLOCK(zcrypt_ops_list_lock);
static LIST_HEAD(zcrypt_ops_list);
-static debug_info_t *zcrypt_dbf_common;
-static debug_info_t *zcrypt_dbf_devices;
-static struct dentry *debugfs_root;
-
-/*
- * Device attributes common for all crypto devices.
- */
-static ssize_t zcrypt_type_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct zcrypt_device *zdev = to_ap_dev(dev)->private;
- return snprintf(buf, PAGE_SIZE, "%s\n", zdev->type_string);
-}
-
-static DEVICE_ATTR(type, 0444, zcrypt_type_show, NULL);
-
-static ssize_t zcrypt_online_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct zcrypt_device *zdev = to_ap_dev(dev)->private;
- return snprintf(buf, PAGE_SIZE, "%d\n", zdev->online);
-}
-
-static ssize_t zcrypt_online_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct zcrypt_device *zdev = to_ap_dev(dev)->private;
- int online;
-
- if (sscanf(buf, "%d\n", &online) != 1 || online < 0 || online > 1)
- return -EINVAL;
- zdev->online = online;
- ZCRYPT_DBF_DEV(DBF_INFO, zdev, "dev%04xo%dman", zdev->ap_dev->qid,
- zdev->online);
- if (!online)
- ap_flush_queue(zdev->ap_dev);
- return count;
-}
-
-static DEVICE_ATTR(online, 0644, zcrypt_online_show, zcrypt_online_store);
-
-static struct attribute * zcrypt_device_attrs[] = {
- &dev_attr_type.attr,
- &dev_attr_online.attr,
- NULL,
-};
-
-static struct attribute_group zcrypt_device_attr_group = {
- .attrs = zcrypt_device_attrs,
-};
+/* Zcrypt related debug feature stuff. */
+static struct dentry *zcrypt_dbf_root;
+debug_info_t *zcrypt_dbf_info;
/**
* Process a rescan of the transport layer.
@@ -136,242 +95,34 @@ static inline int zcrypt_process_rescan(void)
atomic_set(&zcrypt_rescan_req, 0);
atomic_inc(&zcrypt_rescan_count);
ap_bus_force_rescan();
- ZCRYPT_DBF_COMMON(DBF_INFO, "rescan%07d",
- atomic_inc_return(&zcrypt_rescan_count));
+ ZCRYPT_DBF(DBF_INFO, "rescan count=%07d",
+ atomic_inc_return(&zcrypt_rescan_count));
return 1;
}
return 0;
}
-/**
- * __zcrypt_increase_preference(): Increase preference of a crypto device.
- * @zdev: Pointer the crypto device
- *
- * Move the device towards the head of the device list.
- * Need to be called while holding the zcrypt device list lock.
- * Note: cards with speed_rating of 0 are kept at the end of the list.
- */
-static void __zcrypt_increase_preference(struct zcrypt_device *zdev)
-{
- struct zcrypt_device *tmp;
- struct list_head *l;
-
- if (zdev->speed_rating == 0)
- return;
- for (l = zdev->list.prev; l != &zcrypt_device_list; l = l->prev) {
- tmp = list_entry(l, struct zcrypt_device, list);
- if ((tmp->request_count + 1) * tmp->speed_rating <=
- (zdev->request_count + 1) * zdev->speed_rating &&
- tmp->speed_rating != 0)
- break;
- }
- if (l == zdev->list.prev)
- return;
- /* Move zdev behind l */
- list_move(&zdev->list, l);
-}
-
-/**
- * __zcrypt_decrease_preference(): Decrease preference of a crypto device.
- * @zdev: Pointer to a crypto device.
- *
- * Move the device towards the tail of the device list.
- * Need to be called while holding the zcrypt device list lock.
- * Note: cards with speed_rating of 0 are kept at the end of the list.
- */
-static void __zcrypt_decrease_preference(struct zcrypt_device *zdev)
-{
- struct zcrypt_device *tmp;
- struct list_head *l;
-
- if (zdev->speed_rating == 0)
- return;
- for (l = zdev->list.next; l != &zcrypt_device_list; l = l->next) {
- tmp = list_entry(l, struct zcrypt_device, list);
- if ((tmp->request_count + 1) * tmp->speed_rating >
- (zdev->request_count + 1) * zdev->speed_rating ||
- tmp->speed_rating == 0)
- break;
- }
- if (l == zdev->list.next)
- return;
- /* Move zdev before l */
- list_move_tail(&zdev->list, l);
-}
-
-static void zcrypt_device_release(struct kref *kref)
-{
- struct zcrypt_device *zdev =
- container_of(kref, struct zcrypt_device, refcount);
- zcrypt_device_free(zdev);
-}
-
-void zcrypt_device_get(struct zcrypt_device *zdev)
-{
- kref_get(&zdev->refcount);
-}
-EXPORT_SYMBOL(zcrypt_device_get);
-
-int zcrypt_device_put(struct zcrypt_device *zdev)
-{
- return kref_put(&zdev->refcount, zcrypt_device_release);
-}
-EXPORT_SYMBOL(zcrypt_device_put);
-
-struct zcrypt_device *zcrypt_device_alloc(size_t max_response_size)
-{
- struct zcrypt_device *zdev;
-
- zdev = kzalloc(sizeof(struct zcrypt_device), GFP_KERNEL);
- if (!zdev)
- return NULL;
- zdev->reply.message = kmalloc(max_response_size, GFP_KERNEL);
- if (!zdev->reply.message)
- goto out_free;
- zdev->reply.length = max_response_size;
- spin_lock_init(&zdev->lock);
- INIT_LIST_HEAD(&zdev->list);
- zdev->dbf_area = zcrypt_dbf_devices;
- return zdev;
-
-out_free:
- kfree(zdev);
- return NULL;
-}
-EXPORT_SYMBOL(zcrypt_device_alloc);
-
-void zcrypt_device_free(struct zcrypt_device *zdev)
-{
- kfree(zdev->reply.message);
- kfree(zdev);
-}
-EXPORT_SYMBOL(zcrypt_device_free);
-
-/**
- * zcrypt_device_register() - Register a crypto device.
- * @zdev: Pointer to a crypto device
- *
- * Register a crypto device. Returns 0 if successful.
- */
-int zcrypt_device_register(struct zcrypt_device *zdev)
-{
- int rc;
-
- if (!zdev->ops)
- return -ENODEV;
- rc = sysfs_create_group(&zdev->ap_dev->device.kobj,
- &zcrypt_device_attr_group);
- if (rc)
- goto out;
- get_device(&zdev->ap_dev->device);
- kref_init(&zdev->refcount);
- spin_lock_bh(&zcrypt_device_lock);
- zdev->online = 1; /* New devices are online by default. */
- ZCRYPT_DBF_DEV(DBF_INFO, zdev, "dev%04xo%dreg", zdev->ap_dev->qid,
- zdev->online);
- list_add_tail(&zdev->list, &zcrypt_device_list);
- __zcrypt_increase_preference(zdev);
- zcrypt_device_count++;
- spin_unlock_bh(&zcrypt_device_lock);
- if (zdev->ops->rng) {
- rc = zcrypt_rng_device_add();
- if (rc)
- goto out_unregister;
- }
- return 0;
-
-out_unregister:
- spin_lock_bh(&zcrypt_device_lock);
- zcrypt_device_count--;
- list_del_init(&zdev->list);
- spin_unlock_bh(&zcrypt_device_lock);
- sysfs_remove_group(&zdev->ap_dev->device.kobj,
- &zcrypt_device_attr_group);
- put_device(&zdev->ap_dev->device);
- zcrypt_device_put(zdev);
-out:
- return rc;
-}
-EXPORT_SYMBOL(zcrypt_device_register);
-
-/**
- * zcrypt_device_unregister(): Unregister a crypto device.
- * @zdev: Pointer to crypto device
- *
- * Unregister a crypto device.
- */
-void zcrypt_device_unregister(struct zcrypt_device *zdev)
-{
- if (zdev->ops->rng)
- zcrypt_rng_device_remove();
- spin_lock_bh(&zcrypt_device_lock);
- zcrypt_device_count--;
- list_del_init(&zdev->list);
- spin_unlock_bh(&zcrypt_device_lock);
- sysfs_remove_group(&zdev->ap_dev->device.kobj,
- &zcrypt_device_attr_group);
- put_device(&zdev->ap_dev->device);
- zcrypt_device_put(zdev);
-}
-EXPORT_SYMBOL(zcrypt_device_unregister);
-
void zcrypt_msgtype_register(struct zcrypt_ops *zops)
{
- spin_lock_bh(&zcrypt_ops_list_lock);
list_add_tail(&zops->list, &zcrypt_ops_list);
- spin_unlock_bh(&zcrypt_ops_list_lock);
}
-EXPORT_SYMBOL(zcrypt_msgtype_register);
void zcrypt_msgtype_unregister(struct zcrypt_ops *zops)
{
- spin_lock_bh(&zcrypt_ops_list_lock);
list_del_init(&zops->list);
- spin_unlock_bh(&zcrypt_ops_list_lock);
}
-EXPORT_SYMBOL(zcrypt_msgtype_unregister);
-static inline
-struct zcrypt_ops *__ops_lookup(unsigned char *name, int variant)
+struct zcrypt_ops *zcrypt_msgtype(unsigned char *name, int variant)
{
struct zcrypt_ops *zops;
- int found = 0;
- spin_lock_bh(&zcrypt_ops_list_lock);
- list_for_each_entry(zops, &zcrypt_ops_list, list) {
+ list_for_each_entry(zops, &zcrypt_ops_list, list)
if ((zops->variant == variant) &&
- (!strncmp(zops->name, name, sizeof(zops->name)))) {
- found = 1;
- break;
- }
- }
- if (!found || !try_module_get(zops->owner))
- zops = NULL;
-
- spin_unlock_bh(&zcrypt_ops_list_lock);
-
- return zops;
-}
-
-struct zcrypt_ops *zcrypt_msgtype_request(unsigned char *name, int variant)
-{
- struct zcrypt_ops *zops = NULL;
-
- zops = __ops_lookup(name, variant);
- if (!zops) {
- request_module("%s", name);
- zops = __ops_lookup(name, variant);
- }
- return zops;
-}
-EXPORT_SYMBOL(zcrypt_msgtype_request);
-
-void zcrypt_msgtype_release(struct zcrypt_ops *zops)
-{
- if (zops)
- module_put(zops->owner);
+ (!strncmp(zops->name, name, sizeof(zops->name))))
+ return zops;
+ return NULL;
}
-EXPORT_SYMBOL(zcrypt_msgtype_release);
+EXPORT_SYMBOL(zcrypt_msgtype);
/**
* zcrypt_read (): Not supported beyond zcrypt 1.3.1.
@@ -417,16 +168,80 @@ static int zcrypt_release(struct inode *inode, struct file *filp)
return 0;
}
+static inline struct zcrypt_queue *zcrypt_pick_queue(struct zcrypt_card *zc,
+ struct zcrypt_queue *zq,
+ unsigned int weight)
+{
+ if (!zq || !try_module_get(zq->queue->ap_dev.drv->driver.owner))
+ return NULL;
+ zcrypt_queue_get(zq);
+ get_device(&zq->queue->ap_dev.device);
+ atomic_add(weight, &zc->load);
+ atomic_add(weight, &zq->load);
+ zq->request_count++;
+ return zq;
+}
+
+static inline void zcrypt_drop_queue(struct zcrypt_card *zc,
+ struct zcrypt_queue *zq,
+ unsigned int weight)
+{
+ struct module *mod = zq->queue->ap_dev.drv->driver.owner;
+
+ zq->request_count--;
+ atomic_sub(weight, &zc->load);
+ atomic_sub(weight, &zq->load);
+ put_device(&zq->queue->ap_dev.device);
+ zcrypt_queue_put(zq);
+ module_put(mod);
+}
+
+static inline bool zcrypt_card_compare(struct zcrypt_card *zc,
+ struct zcrypt_card *pref_zc,
+ unsigned weight, unsigned pref_weight)
+{
+ if (!pref_zc)
+ return 0;
+ weight += atomic_read(&zc->load);
+ pref_weight += atomic_read(&pref_zc->load);
+ if (weight == pref_weight)
+ return atomic_read(&zc->card->total_request_count) >
+ atomic_read(&pref_zc->card->total_request_count);
+ return weight > pref_weight;
+}
+
+static inline bool zcrypt_queue_compare(struct zcrypt_queue *zq,
+ struct zcrypt_queue *pref_zq,
+ unsigned weight, unsigned pref_weight)
+{
+ if (!pref_zq)
+ return 0;
+ weight += atomic_read(&zq->load);
+ pref_weight += atomic_read(&pref_zq->load);
+ if (weight == pref_weight)
+ return &zq->queue->total_request_count >
+ &pref_zq->queue->total_request_count;
+ return weight > pref_weight;
+}
+
/*
* zcrypt ioctls.
*/
static long zcrypt_rsa_modexpo(struct ica_rsa_modexpo *mex)
{
- struct zcrypt_device *zdev;
- int rc;
+ struct zcrypt_card *zc, *pref_zc;
+ struct zcrypt_queue *zq, *pref_zq;
+ unsigned int weight, pref_weight;
+ unsigned int func_code;
+ int qid = 0, rc = -ENODEV;
+
+ trace_s390_zcrypt_req(mex, TP_ICARSAMODEXPO);
+
+ if (mex->outputdatalength < mex->inputdatalength) {
+ rc = -EINVAL;
+ goto out;
+ }
- if (mex->outputdatalength < mex->inputdatalength)
- return -EINVAL;
/*
* As long as outputdatalength is big enough, we can set the
* outputdatalength equal to the inputdatalength, since that is the
@@ -434,44 +249,73 @@ static long zcrypt_rsa_modexpo(struct ica_rsa_modexpo *mex)
*/
mex->outputdatalength = mex->inputdatalength;
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list) {
- if (!zdev->online ||
- !zdev->ops->rsa_modexpo ||
- zdev->min_mod_size > mex->inputdatalength ||
- zdev->max_mod_size < mex->inputdatalength)
+ rc = get_rsa_modex_fc(mex, &func_code);
+ if (rc)
+ goto out;
+
+ pref_zc = NULL;
+ pref_zq = NULL;
+ spin_lock(&zcrypt_list_lock);
+ for_each_zcrypt_card(zc) {
+ /* Check for online accelarator and CCA cards */
+ if (!zc->online || !(zc->card->functions & 0x18000000))
+ continue;
+ /* Check for size limits */
+ if (zc->min_mod_size > mex->inputdatalength ||
+ zc->max_mod_size < mex->inputdatalength)
+ continue;
+ /* get weight index of the card device */
+ weight = zc->speed_rating[func_code];
+ if (zcrypt_card_compare(zc, pref_zc, weight, pref_weight))
continue;
- zcrypt_device_get(zdev);
- get_device(&zdev->ap_dev->device);
- zdev->request_count++;
- __zcrypt_decrease_preference(zdev);
- if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
- spin_unlock_bh(&zcrypt_device_lock);
- rc = zdev->ops->rsa_modexpo(zdev, mex);
- spin_lock_bh(&zcrypt_device_lock);
- module_put(zdev->ap_dev->drv->driver.owner);
+ for_each_zcrypt_queue(zq, zc) {
+ /* check if device is online and eligible */
+ if (!zq->online || !zq->ops->rsa_modexpo)
+ continue;
+ if (zcrypt_queue_compare(zq, pref_zq,
+ weight, pref_weight))
+ continue;
+ pref_zc = zc;
+ pref_zq = zq;
+ pref_weight = weight;
}
- else
- rc = -EAGAIN;
- zdev->request_count--;
- __zcrypt_increase_preference(zdev);
- put_device(&zdev->ap_dev->device);
- zcrypt_device_put(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
- return rc;
}
- spin_unlock_bh(&zcrypt_device_lock);
- return -ENODEV;
+ pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
+
+ if (!pref_zq) {
+ rc = -ENODEV;
+ goto out;
+ }
+
+ qid = pref_zq->queue->qid;
+ rc = pref_zq->ops->rsa_modexpo(pref_zq, mex);
+
+ spin_lock(&zcrypt_list_lock);
+ zcrypt_drop_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
+
+out:
+ trace_s390_zcrypt_rep(mex, func_code, rc,
+ AP_QID_CARD(qid), AP_QID_QUEUE(qid));
+ return rc;
}
static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt)
{
- struct zcrypt_device *zdev;
- unsigned long long z1, z2, z3;
- int rc, copied;
+ struct zcrypt_card *zc, *pref_zc;
+ struct zcrypt_queue *zq, *pref_zq;
+ unsigned int weight, pref_weight;
+ unsigned int func_code;
+ int qid = 0, rc = -ENODEV;
+
+ trace_s390_zcrypt_req(crt, TP_ICARSACRT);
+
+ if (crt->outputdatalength < crt->inputdatalength) {
+ rc = -EINVAL;
+ goto out;
+ }
- if (crt->outputdatalength < crt->inputdatalength)
- return -EINVAL;
/*
* As long as outputdatalength is big enough, we can set the
* outputdatalength equal to the inputdatalength, since that is the
@@ -479,308 +323,445 @@ static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt)
*/
crt->outputdatalength = crt->inputdatalength;
- copied = 0;
- restart:
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list) {
- if (!zdev->online ||
- !zdev->ops->rsa_modexpo_crt ||
- zdev->min_mod_size > crt->inputdatalength ||
- zdev->max_mod_size < crt->inputdatalength)
+ rc = get_rsa_crt_fc(crt, &func_code);
+ if (rc)
+ goto out;
+
+ pref_zc = NULL;
+ pref_zq = NULL;
+ spin_lock(&zcrypt_list_lock);
+ for_each_zcrypt_card(zc) {
+ /* Check for online accelarator and CCA cards */
+ if (!zc->online || !(zc->card->functions & 0x18000000))
+ continue;
+ /* Check for size limits */
+ if (zc->min_mod_size > crt->inputdatalength ||
+ zc->max_mod_size < crt->inputdatalength)
continue;
- if (zdev->short_crt && crt->inputdatalength > 240) {
- /*
- * Check inputdata for leading zeros for cards
- * that can't handle np_prime, bp_key, or
- * u_mult_inv > 128 bytes.
- */
- if (copied == 0) {
- unsigned int len;
- spin_unlock_bh(&zcrypt_device_lock);
- /* len is max 256 / 2 - 120 = 8
- * For bigger device just assume len of leading
- * 0s is 8 as stated in the requirements for
- * ica_rsa_modexpo_crt struct in zcrypt.h.
- */
- if (crt->inputdatalength <= 256)
- len = crt->inputdatalength / 2 - 120;
- else
- len = 8;
- if (len > sizeof(z1))
- return -EFAULT;
- z1 = z2 = z3 = 0;
- if (copy_from_user(&z1, crt->np_prime, len) ||
- copy_from_user(&z2, crt->bp_key, len) ||
- copy_from_user(&z3, crt->u_mult_inv, len))
- return -EFAULT;
- z1 = z2 = z3 = 0;
- copied = 1;
- /*
- * We have to restart device lookup -
- * the device list may have changed by now.
- */
- goto restart;
- }
- if (z1 != 0ULL || z2 != 0ULL || z3 != 0ULL)
- /* The device can't handle this request. */
+ /* get weight index of the card device */
+ weight = zc->speed_rating[func_code];
+ if (zcrypt_card_compare(zc, pref_zc, weight, pref_weight))
+ continue;
+ for_each_zcrypt_queue(zq, zc) {
+ /* check if device is online and eligible */
+ if (!zq->online || !zq->ops->rsa_modexpo_crt)
continue;
+ if (zcrypt_queue_compare(zq, pref_zq,
+ weight, pref_weight))
+ continue;
+ pref_zc = zc;
+ pref_zq = zq;
+ pref_weight = weight;
}
- zcrypt_device_get(zdev);
- get_device(&zdev->ap_dev->device);
- zdev->request_count++;
- __zcrypt_decrease_preference(zdev);
- if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
- spin_unlock_bh(&zcrypt_device_lock);
- rc = zdev->ops->rsa_modexpo_crt(zdev, crt);
- spin_lock_bh(&zcrypt_device_lock);
- module_put(zdev->ap_dev->drv->driver.owner);
- }
- else
- rc = -EAGAIN;
- zdev->request_count--;
- __zcrypt_increase_preference(zdev);
- put_device(&zdev->ap_dev->device);
- zcrypt_device_put(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
- return rc;
}
- spin_unlock_bh(&zcrypt_device_lock);
- return -ENODEV;
+ pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
+
+ if (!pref_zq) {
+ rc = -ENODEV;
+ goto out;
+ }
+
+ qid = pref_zq->queue->qid;
+ rc = pref_zq->ops->rsa_modexpo_crt(pref_zq, crt);
+
+ spin_lock(&zcrypt_list_lock);
+ zcrypt_drop_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
+
+out:
+ trace_s390_zcrypt_rep(crt, func_code, rc,
+ AP_QID_CARD(qid), AP_QID_QUEUE(qid));
+ return rc;
}
static long zcrypt_send_cprb(struct ica_xcRB *xcRB)
{
- struct zcrypt_device *zdev;
- int rc;
+ struct zcrypt_card *zc, *pref_zc;
+ struct zcrypt_queue *zq, *pref_zq;
+ struct ap_message ap_msg;
+ unsigned int weight, pref_weight;
+ unsigned int func_code;
+ unsigned short *domain;
+ int qid = 0, rc = -ENODEV;
+
+ trace_s390_zcrypt_req(xcRB, TB_ZSECSENDCPRB);
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list) {
- if (!zdev->online || !zdev->ops->send_cprb ||
- (zdev->ops->variant == MSGTYPE06_VARIANT_EP11) ||
- (xcRB->user_defined != AUTOSELECT &&
- AP_QID_DEVICE(zdev->ap_dev->qid) != xcRB->user_defined))
+ rc = get_cprb_fc(xcRB, &ap_msg, &func_code, &domain);
+ if (rc)
+ goto out;
+
+ pref_zc = NULL;
+ pref_zq = NULL;
+ spin_lock(&zcrypt_list_lock);
+ for_each_zcrypt_card(zc) {
+ /* Check for online CCA cards */
+ if (!zc->online || !(zc->card->functions & 0x10000000))
+ continue;
+ /* Check for user selected CCA card */
+ if (xcRB->user_defined != AUTOSELECT &&
+ xcRB->user_defined != zc->card->id)
continue;
- zcrypt_device_get(zdev);
- get_device(&zdev->ap_dev->device);
- zdev->request_count++;
- __zcrypt_decrease_preference(zdev);
- if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
- spin_unlock_bh(&zcrypt_device_lock);
- rc = zdev->ops->send_cprb(zdev, xcRB);
- spin_lock_bh(&zcrypt_device_lock);
- module_put(zdev->ap_dev->drv->driver.owner);
+ /* get weight index of the card device */
+ weight = speed_idx_cca(func_code) * zc->speed_rating[SECKEY];
+ if (zcrypt_card_compare(zc, pref_zc, weight, pref_weight))
+ continue;
+ for_each_zcrypt_queue(zq, zc) {
+ /* check if device is online and eligible */
+ if (!zq->online ||
+ !zq->ops->send_cprb ||
+ ((*domain != (unsigned short) AUTOSELECT) &&
+ (*domain != AP_QID_QUEUE(zq->queue->qid))))
+ continue;
+ if (zcrypt_queue_compare(zq, pref_zq,
+ weight, pref_weight))
+ continue;
+ pref_zc = zc;
+ pref_zq = zq;
+ pref_weight = weight;
}
- else
- rc = -EAGAIN;
- zdev->request_count--;
- __zcrypt_increase_preference(zdev);
- put_device(&zdev->ap_dev->device);
- zcrypt_device_put(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
- return rc;
}
- spin_unlock_bh(&zcrypt_device_lock);
- return -ENODEV;
-}
+ pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
-struct ep11_target_dev_list {
- unsigned short targets_num;
- struct ep11_target_dev *targets;
-};
+ if (!pref_zq) {
+ rc = -ENODEV;
+ goto out;
+ }
+
+ /* in case of auto select, provide the correct domain */
+ qid = pref_zq->queue->qid;
+ if (*domain == (unsigned short) AUTOSELECT)
+ *domain = AP_QID_QUEUE(qid);
-static bool is_desired_ep11dev(unsigned int dev_qid,
- struct ep11_target_dev_list dev_list)
+ rc = pref_zq->ops->send_cprb(pref_zq, xcRB, &ap_msg);
+
+ spin_lock(&zcrypt_list_lock);
+ zcrypt_drop_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
+
+out:
+ trace_s390_zcrypt_rep(xcRB, func_code, rc,
+ AP_QID_CARD(qid), AP_QID_QUEUE(qid));
+ return rc;
+}
+
+static bool is_desired_ep11_card(unsigned int dev_id,
+ unsigned short target_num,
+ struct ep11_target_dev *targets)
{
- int n;
+ while (target_num-- > 0) {
+ if (dev_id == targets->ap_id)
+ return true;
+ targets++;
+ }
+ return false;
+}
- for (n = 0; n < dev_list.targets_num; n++, dev_list.targets++) {
- if ((AP_QID_DEVICE(dev_qid) == dev_list.targets->ap_id) &&
- (AP_QID_QUEUE(dev_qid) == dev_list.targets->dom_id)) {
+static bool is_desired_ep11_queue(unsigned int dev_qid,
+ unsigned short target_num,
+ struct ep11_target_dev *targets)
+{
+ while (target_num-- > 0) {
+ if (AP_MKQID(targets->ap_id, targets->dom_id) == dev_qid)
return true;
- }
+ targets++;
}
return false;
}
static long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb)
{
- struct zcrypt_device *zdev;
- bool autoselect = false;
- int rc;
- struct ep11_target_dev_list ep11_dev_list = {
- .targets_num = 0x00,
- .targets = NULL,
- };
+ struct zcrypt_card *zc, *pref_zc;
+ struct zcrypt_queue *zq, *pref_zq;
+ struct ep11_target_dev *targets;
+ unsigned short target_num;
+ unsigned int weight, pref_weight;
+ unsigned int func_code;
+ struct ap_message ap_msg;
+ int qid = 0, rc = -ENODEV;
+
+ trace_s390_zcrypt_req(xcrb, TP_ZSENDEP11CPRB);
- ep11_dev_list.targets_num = (unsigned short) xcrb->targets_num;
+ target_num = (unsigned short) xcrb->targets_num;
/* empty list indicates autoselect (all available targets) */
- if (ep11_dev_list.targets_num == 0)
- autoselect = true;
- else {
- ep11_dev_list.targets = kcalloc((unsigned short)
- xcrb->targets_num,
- sizeof(struct ep11_target_dev),
- GFP_KERNEL);
- if (!ep11_dev_list.targets)
- return -ENOMEM;
+ targets = NULL;
+ if (target_num != 0) {
+ struct ep11_target_dev __user *uptr;
- if (copy_from_user(ep11_dev_list.targets,
- (struct ep11_target_dev __force __user *)
- xcrb->targets, xcrb->targets_num *
- sizeof(struct ep11_target_dev)))
- return -EFAULT;
+ targets = kcalloc(target_num, sizeof(*targets), GFP_KERNEL);
+ if (!targets) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ uptr = (struct ep11_target_dev __force __user *) xcrb->targets;
+ if (copy_from_user(targets, uptr,
+ target_num * sizeof(*targets))) {
+ rc = -EFAULT;
+ goto out;
+ }
}
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list) {
- /* check if device is eligible */
- if (!zdev->online ||
- zdev->ops->variant != MSGTYPE06_VARIANT_EP11)
- continue;
+ rc = get_ep11cprb_fc(xcrb, &ap_msg, &func_code);
+ if (rc)
+ goto out_free;
- /* check if device is selected as valid target */
- if (!is_desired_ep11dev(zdev->ap_dev->qid, ep11_dev_list) &&
- !autoselect)
+ pref_zc = NULL;
+ pref_zq = NULL;
+ spin_lock(&zcrypt_list_lock);
+ for_each_zcrypt_card(zc) {
+ /* Check for online EP11 cards */
+ if (!zc->online || !(zc->card->functions & 0x04000000))
+ continue;
+ /* Check for user selected EP11 card */
+ if (targets &&
+ !is_desired_ep11_card(zc->card->id, target_num, targets))
continue;
+ /* get weight index of the card device */
+ weight = speed_idx_ep11(func_code) * zc->speed_rating[SECKEY];
+ if (zcrypt_card_compare(zc, pref_zc, weight, pref_weight))
+ continue;
+ for_each_zcrypt_queue(zq, zc) {
+ /* check if device is online and eligible */
+ if (!zq->online ||
+ !zq->ops->send_ep11_cprb ||
+ (targets &&
+ !is_desired_ep11_queue(zq->queue->qid,
+ target_num, targets)))
+ continue;
+ if (zcrypt_queue_compare(zq, pref_zq,
+ weight, pref_weight))
+ continue;
+ pref_zc = zc;
+ pref_zq = zq;
+ pref_weight = weight;
+ }
+ }
+ pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
- zcrypt_device_get(zdev);
- get_device(&zdev->ap_dev->device);
- zdev->request_count++;
- __zcrypt_decrease_preference(zdev);
- if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
- spin_unlock_bh(&zcrypt_device_lock);
- rc = zdev->ops->send_ep11_cprb(zdev, xcrb);
- spin_lock_bh(&zcrypt_device_lock);
- module_put(zdev->ap_dev->drv->driver.owner);
- } else {
- rc = -EAGAIN;
- }
- zdev->request_count--;
- __zcrypt_increase_preference(zdev);
- put_device(&zdev->ap_dev->device);
- zcrypt_device_put(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
- return rc;
+ if (!pref_zq) {
+ rc = -ENODEV;
+ goto out_free;
}
- spin_unlock_bh(&zcrypt_device_lock);
- return -ENODEV;
+
+ qid = pref_zq->queue->qid;
+ rc = pref_zq->ops->send_ep11_cprb(pref_zq, xcrb, &ap_msg);
+
+ spin_lock(&zcrypt_list_lock);
+ zcrypt_drop_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
+
+out_free:
+ kfree(targets);
+out:
+ trace_s390_zcrypt_rep(xcrb, func_code, rc,
+ AP_QID_CARD(qid), AP_QID_QUEUE(qid));
+ return rc;
}
static long zcrypt_rng(char *buffer)
{
- struct zcrypt_device *zdev;
- int rc;
+ struct zcrypt_card *zc, *pref_zc;
+ struct zcrypt_queue *zq, *pref_zq;
+ unsigned int weight, pref_weight;
+ unsigned int func_code;
+ struct ap_message ap_msg;
+ unsigned int domain;
+ int qid = 0, rc = -ENODEV;
+
+ trace_s390_zcrypt_req(buffer, TP_HWRNGCPRB);
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list) {
- if (!zdev->online || !zdev->ops->rng)
+ rc = get_rng_fc(&ap_msg, &func_code, &domain);
+ if (rc)
+ goto out;
+
+ pref_zc = NULL;
+ pref_zq = NULL;
+ spin_lock(&zcrypt_list_lock);
+ for_each_zcrypt_card(zc) {
+ /* Check for online CCA cards */
+ if (!zc->online || !(zc->card->functions & 0x10000000))
continue;
- zcrypt_device_get(zdev);
- get_device(&zdev->ap_dev->device);
- zdev->request_count++;
- __zcrypt_decrease_preference(zdev);
- if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
- spin_unlock_bh(&zcrypt_device_lock);
- rc = zdev->ops->rng(zdev, buffer);
- spin_lock_bh(&zcrypt_device_lock);
- module_put(zdev->ap_dev->drv->driver.owner);
- } else
- rc = -EAGAIN;
- zdev->request_count--;
- __zcrypt_increase_preference(zdev);
- put_device(&zdev->ap_dev->device);
- zcrypt_device_put(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
- return rc;
+ /* get weight index of the card device */
+ weight = zc->speed_rating[func_code];
+ if (zcrypt_card_compare(zc, pref_zc, weight, pref_weight))
+ continue;
+ for_each_zcrypt_queue(zq, zc) {
+ /* check if device is online and eligible */
+ if (!zq->online || !zq->ops->rng)
+ continue;
+ if (zcrypt_queue_compare(zq, pref_zq,
+ weight, pref_weight))
+ continue;
+ pref_zc = zc;
+ pref_zq = zq;
+ pref_weight = weight;
+ }
+ }
+ pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
+
+ if (!pref_zq)
+ return -ENODEV;
+
+ qid = pref_zq->queue->qid;
+ rc = pref_zq->ops->rng(pref_zq, buffer, &ap_msg);
+
+ spin_lock(&zcrypt_list_lock);
+ zcrypt_drop_queue(pref_zc, pref_zq, weight);
+ spin_unlock(&zcrypt_list_lock);
+
+out:
+ trace_s390_zcrypt_rep(buffer, func_code, rc,
+ AP_QID_CARD(qid), AP_QID_QUEUE(qid));
+ return rc;
+}
+
+static void zcrypt_device_status_mask(struct zcrypt_device_matrix *matrix)
+{
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
+ struct zcrypt_device_status *stat;
+
+ 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);
+ 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_bh(&zcrypt_device_lock);
- return -ENODEV;
+ spin_unlock(&zcrypt_list_lock);
}
+EXPORT_SYMBOL(zcrypt_device_status_mask);
static void zcrypt_status_mask(char status[AP_DEVICES])
{
- struct zcrypt_device *zdev;
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
memset(status, 0, sizeof(char) * AP_DEVICES);
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list)
- status[AP_QID_DEVICE(zdev->ap_dev->qid)] =
- zdev->online ? zdev->user_space_type : 0x0d;
- spin_unlock_bh(&zcrypt_device_lock);
+ 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)
+ continue;
+ status[AP_QID_CARD(zq->queue->qid)] =
+ zc->online ? zc->user_space_type : 0x0d;
+ }
+ }
+ spin_unlock(&zcrypt_list_lock);
}
static void zcrypt_qdepth_mask(char qdepth[AP_DEVICES])
{
- struct zcrypt_device *zdev;
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
memset(qdepth, 0, sizeof(char) * AP_DEVICES);
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list) {
- spin_lock(&zdev->ap_dev->lock);
- qdepth[AP_QID_DEVICE(zdev->ap_dev->qid)] =
- zdev->ap_dev->pendingq_count +
- zdev->ap_dev->requestq_count;
- spin_unlock(&zdev->ap_dev->lock);
+ 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)
+ continue;
+ spin_lock(&zq->queue->lock);
+ qdepth[AP_QID_CARD(zq->queue->qid)] =
+ zq->queue->pendingq_count +
+ zq->queue->requestq_count;
+ spin_unlock(&zq->queue->lock);
+ }
}
- spin_unlock_bh(&zcrypt_device_lock);
+ spin_unlock(&zcrypt_list_lock);
}
static void zcrypt_perdev_reqcnt(int reqcnt[AP_DEVICES])
{
- struct zcrypt_device *zdev;
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
memset(reqcnt, 0, sizeof(int) * AP_DEVICES);
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list) {
- spin_lock(&zdev->ap_dev->lock);
- reqcnt[AP_QID_DEVICE(zdev->ap_dev->qid)] =
- zdev->ap_dev->total_request_count;
- spin_unlock(&zdev->ap_dev->lock);
+ 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)
+ continue;
+ spin_lock(&zq->queue->lock);
+ reqcnt[AP_QID_CARD(zq->queue->qid)] =
+ zq->queue->total_request_count;
+ spin_unlock(&zq->queue->lock);
+ }
}
- spin_unlock_bh(&zcrypt_device_lock);
+ spin_unlock(&zcrypt_list_lock);
}
static int zcrypt_pendingq_count(void)
{
- struct zcrypt_device *zdev;
- int pendingq_count = 0;
-
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list) {
- spin_lock(&zdev->ap_dev->lock);
- pendingq_count += zdev->ap_dev->pendingq_count;
- spin_unlock(&zdev->ap_dev->lock);
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
+ int pendingq_count;
+
+ pendingq_count = 0;
+ 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)
+ continue;
+ spin_lock(&zq->queue->lock);
+ pendingq_count += zq->queue->pendingq_count;
+ spin_unlock(&zq->queue->lock);
+ }
}
- spin_unlock_bh(&zcrypt_device_lock);
+ spin_unlock(&zcrypt_list_lock);
return pendingq_count;
}
static int zcrypt_requestq_count(void)
{
- struct zcrypt_device *zdev;
- int requestq_count = 0;
-
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list) {
- spin_lock(&zdev->ap_dev->lock);
- requestq_count += zdev->ap_dev->requestq_count;
- spin_unlock(&zdev->ap_dev->lock);
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
+ int requestq_count;
+
+ requestq_count = 0;
+ 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)
+ continue;
+ spin_lock(&zq->queue->lock);
+ requestq_count += zq->queue->requestq_count;
+ spin_unlock(&zq->queue->lock);
+ }
}
- spin_unlock_bh(&zcrypt_device_lock);
+ spin_unlock(&zcrypt_list_lock);
return requestq_count;
}
static int zcrypt_count_type(int type)
{
- struct zcrypt_device *zdev;
- int device_count = 0;
-
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list)
- if (zdev->user_space_type == type)
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
+ int device_count;
+
+ device_count = 0;
+ spin_lock(&zcrypt_list_lock);
+ for_each_zcrypt_card(zc) {
+ if (zc->card->id != type)
+ continue;
+ for_each_zcrypt_queue(zq, zc) {
+ if (AP_QID_QUEUE(zq->queue->qid) != ap_domain_index)
+ continue;
device_count++;
- spin_unlock_bh(&zcrypt_device_lock);
+ }
+ }
+ spin_unlock(&zcrypt_list_lock);
return device_count;
}
@@ -887,6 +868,25 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
return -EFAULT;
return rc;
}
+ case ZDEVICESTATUS: {
+ struct zcrypt_device_matrix *device_status;
+
+ device_status = kzalloc(sizeof(struct zcrypt_device_matrix),
+ GFP_KERNEL);
+ if (!device_status)
+ return -ENOMEM;
+
+ zcrypt_device_status_mask(device_status);
+
+ if (copy_to_user((char __user *) arg, device_status,
+ sizeof(struct zcrypt_device_matrix))) {
+ kfree(device_status);
+ return -EFAULT;
+ }
+
+ kfree(device_status);
+ return 0;
+ }
case Z90STAT_STATUS_MASK: {
char status[AP_DEVICES];
zcrypt_status_mask(status);
@@ -1249,29 +1249,36 @@ static int zcrypt_proc_open(struct inode *inode, struct file *file)
static void zcrypt_disable_card(int index)
{
- struct zcrypt_device *zdev;
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list)
- if (AP_QID_DEVICE(zdev->ap_dev->qid) == index) {
- zdev->online = 0;
- ap_flush_queue(zdev->ap_dev);
- break;
+ 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)
+ continue;
+ zq->online = 0;
+ ap_flush_queue(zq->queue);
}
- spin_unlock_bh(&zcrypt_device_lock);
+ }
+ spin_unlock(&zcrypt_list_lock);
}
static void zcrypt_enable_card(int index)
{
- struct zcrypt_device *zdev;
+ struct zcrypt_card *zc;
+ struct zcrypt_queue *zq;
- spin_lock_bh(&zcrypt_device_lock);
- list_for_each_entry(zdev, &zcrypt_device_list, list)
- if (AP_QID_DEVICE(zdev->ap_dev->qid) == index) {
- zdev->online = 1;
- break;
+ 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)
+ continue;
+ zq->online = 1;
+ ap_flush_queue(zq->queue);
}
- spin_unlock_bh(&zcrypt_device_lock);
+ }
+ spin_unlock(&zcrypt_list_lock);
}
static ssize_t zcrypt_proc_write(struct file *file, const char __user *buffer,
@@ -1369,7 +1376,7 @@ static struct hwrng zcrypt_rng_dev = {
.quality = 990,
};
-static int zcrypt_rng_device_add(void)
+int zcrypt_rng_device_add(void)
{
int rc = 0;
@@ -1399,7 +1406,7 @@ out:
return rc;
}
-static void zcrypt_rng_device_remove(void)
+void zcrypt_rng_device_remove(void)
{
mutex_lock(&zcrypt_rng_mutex);
zcrypt_rng_device_count--;
@@ -1412,24 +1419,19 @@ static void zcrypt_rng_device_remove(void)
int __init zcrypt_debug_init(void)
{
- debugfs_root = debugfs_create_dir("zcrypt", NULL);
-
- zcrypt_dbf_common = debug_register("zcrypt_common", 1, 1, 16);
- debug_register_view(zcrypt_dbf_common, &debug_hex_ascii_view);
- debug_set_level(zcrypt_dbf_common, DBF_ERR);
-
- zcrypt_dbf_devices = debug_register("zcrypt_devices", 1, 1, 16);
- debug_register_view(zcrypt_dbf_devices, &debug_hex_ascii_view);
- debug_set_level(zcrypt_dbf_devices, DBF_ERR);
+ zcrypt_dbf_root = debugfs_create_dir("zcrypt", NULL);
+ zcrypt_dbf_info = debug_register("zcrypt", 1, 1,
+ DBF_MAX_SPRINTF_ARGS * sizeof(long));
+ debug_register_view(zcrypt_dbf_info, &debug_sprintf_view);
+ debug_set_level(zcrypt_dbf_info, DBF_ERR);
return 0;
}
void zcrypt_debug_exit(void)
{
- debugfs_remove(debugfs_root);
- debug_unregister(zcrypt_dbf_common);
- debug_unregister(zcrypt_dbf_devices);
+ debugfs_remove(zcrypt_dbf_root);
+ debug_unregister(zcrypt_dbf_info);
}
/**
@@ -1453,12 +1455,15 @@ int __init zcrypt_api_init(void)
goto out;
/* Set up the proc file system */
- zcrypt_entry = proc_create("driver/z90crypt", 0644, NULL, &zcrypt_proc_fops);
+ zcrypt_entry = proc_create("driver/z90crypt", 0644, NULL,
+ &zcrypt_proc_fops);
if (!zcrypt_entry) {
rc = -ENOMEM;
goto out_misc;
}
+ zcrypt_msgtype6_init();
+ zcrypt_msgtype50_init();
return 0;
out_misc:
@@ -1472,10 +1477,12 @@ out:
*
* The module termination code.
*/
-void zcrypt_api_exit(void)
+void __exit zcrypt_api_exit(void)
{
remove_proc_entry("driver/z90crypt", NULL);
misc_deregister(&zcrypt_misc_device);
+ zcrypt_msgtype6_exit();
+ zcrypt_msgtype50_exit();
zcrypt_debug_exit();
}