s390/zcrypt: add support for EP11 coprocessor cards
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>
diff --git a/drivers/s390/crypto/zcrypt_cex4.c b/drivers/s390/crypto/zcrypt_cex4.c
index ce12263..569f8b1 100644
--- a/drivers/s390/crypto/zcrypt_cex4.c
+++ b/drivers/s390/crypto/zcrypt_cex4.c
@@ -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 @@
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;
}