xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

s390/zcrypt: add support for EP11 coprocessor cards

Browse Source 
This feature extends the generic cryptographic device driver (zcrypt)
with a new capability to service EP11 requests for the Crypto Express4S
card in EP11 (Enterprise PKCS#11 mode) coprocessor mode.

Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Ingo Tuchscherer
2013-11-20 10:47:13 +01:00
committed by Martin Schwidefsky
parent 9efe4f2992
commit 91f3e3eaba
13 changed files with 552 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/s390/crypto/zcrypt_cex4.c
View File

@@ -30,7 +30,12 @@
#define CEX4A_MAX_MESSAGE_SIZE MSGTYPE50_CRB3_MAX_MSG_SIZE
#define CEX4C_MAX_MESSAGE_SIZE MSGTYPE06_MAX_MSG_SIZE
#define CEX4_CLEANUP_TIME (15*HZ)
/* Waiting time for requests to be processed.
* Currently there are some types of request which are not deterministic.
* But the maximum time limit managed by the stomper code is set to 60sec.
* Hence we have to wait at least that time period.
*/
#define CEX4_CLEANUP_TIME (61*HZ)
static struct ap_device_id zcrypt_cex4_ids[] = {
{ AP_DEVICE(AP_DEVICE_TYPE_CEX4) },
@@ -101,6 +106,19 @@ static int zcrypt_cex4_probe(struct ap_device *ap_dev)
zdev->speed_rating = CEX4C_SPEED_RATING;
zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
MSGTYPE06_VARIANT_DEFAULT);
} else if (ap_test_bit(&ap_dev->functions, AP_FUNC_EP11)) {
zdev = zcrypt_device_alloc(CEX4C_MAX_MESSAGE_SIZE);
if (!zdev)
return -ENOMEM;
zdev->type_string = "CEX4P";
zdev->user_space_type = ZCRYPT_CEX4;
zdev->min_mod_size = CEX4C_MIN_MOD_SIZE;
zdev->max_mod_size = CEX4C_MAX_MOD_SIZE;
zdev->max_exp_bit_length = CEX4C_MAX_MOD_SIZE;
zdev->short_crt = 0;
zdev->speed_rating = CEX4C_SPEED_RATING;
zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
MSGTYPE06_VARIANT_EP11);
}
break;
}