iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

s390/zcrypt: Rework debug feature invocations.

Browse Source 
Rework the debug feature calls and initialization.  There
are now two debug feature entries used by the zcrypt code.
The first is 'ap' with all the AP bus related stuff and the
second is 'zcrypt' with all the zcrypt and devices and
driver related entries. However, there isn't much traffic on
both debug features. The ap bus code emits only some debug
info and for zcrypt devices on appearance and disappearance
there is an entry written.

The new dbf invocations use the sprintf buffer layout,
whereas the old implementation used the ascii dbf buffer.
There are now 5*8=40 bytes used for each entry, resulting in
5 parameters per call. As the sprintf buffer needs a format
string the first parameter provides this and so up to 4 more
parameters can be used. Alltogehter the new layout should be
much more human readable for customers and test.

Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Harald Freudenberger
2016-11-24 06:45:21 +01:00
committed by Martin Schwidefsky
parent bf9f31190a
commit cccd85bfb7
10 changed files with 188 additions and 141 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/s390/crypto/zcrypt_card.c
View File

@ -79,7 +79,9 @@ static ssize_t zcrypt_card_online_store(struct device *dev,
zc->online = online;
id = zc->card->id;
ZCRYPT_DBF_DEV(DBF_INFO, zc, "card%02xo%dman", id, online);
ZCRYPT_DBF(DBF_INFO, "card=%02x online=%d\n", id, online);
spin_lock(&zcrypt_list_lock);
list_for_each_entry(zq, &zc->zqueues, list)
zcrypt_queue_force_online(zq, online);
@ -109,7 +111,6 @@ struct zcrypt_card *zcrypt_card_alloc(void)
return NULL;
INIT_LIST_HEAD(&zc->list);
INIT_LIST_HEAD(&zc->zqueues);
zc->dbf_area = zcrypt_dbf_cards;
kref_init(&zc->refcount);
return zc;
}
@ -160,6 +161,9 @@ int zcrypt_card_register(struct zcrypt_card *zc)
spin_unlock(&zcrypt_list_lock);
zc->online = 1;
ZCRYPT_DBF(DBF_INFO, "card=%02x register online=1\n", zc->card->id);
return rc;
}
EXPORT_SYMBOL(zcrypt_card_register);
@ -172,6 +176,8 @@ EXPORT_SYMBOL(zcrypt_card_register);
*/
void zcrypt_card_unregister(struct zcrypt_card *zc)
{
ZCRYPT_DBF(DBF_INFO, "card=%02x unregister\n", zc->card->id);
spin_lock(&zcrypt_list_lock);
list_del_init(&zc->list);
spin_unlock(&zcrypt_list_lock);