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path: root/drivers/s390/crypto/zcrypt_pcixcc.c
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Diffstat (limited to 'drivers/s390/crypto/zcrypt_pcixcc.c')
-rw-r--r--drivers/s390/crypto/zcrypt_pcixcc.c38
1 files changed, 32 insertions, 6 deletions
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index 5677b40e4ac..79c120578e6 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -43,10 +43,13 @@
#define PCIXCC_MIN_MOD_SIZE 16 /* 128 bits */
#define PCIXCC_MIN_MOD_SIZE_OLD 64 /* 512 bits */
#define PCIXCC_MAX_MOD_SIZE 256 /* 2048 bits */
+#define CEX3C_MIN_MOD_SIZE PCIXCC_MIN_MOD_SIZE
+#define CEX3C_MAX_MOD_SIZE PCIXCC_MAX_MOD_SIZE
-#define PCIXCC_MCL2_SPEED_RATING 7870 /* FIXME: needs finetuning */
+#define PCIXCC_MCL2_SPEED_RATING 7870
#define PCIXCC_MCL3_SPEED_RATING 7870
-#define CEX2C_SPEED_RATING 8540
+#define CEX2C_SPEED_RATING 7000
+#define CEX3C_SPEED_RATING 6500 /* FIXME: needs finetuning */
#define PCIXCC_MAX_ICA_MESSAGE_SIZE 0x77c /* max size type6 v2 crt message */
#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply */
@@ -72,7 +75,7 @@ struct response_type {
static struct ap_device_id zcrypt_pcixcc_ids[] = {
{ AP_DEVICE(AP_DEVICE_TYPE_PCIXCC) },
{ AP_DEVICE(AP_DEVICE_TYPE_CEX2C) },
- { AP_DEVICE(AP_DEVICE_TYPE_CEX2C2) },
+ { AP_DEVICE(AP_DEVICE_TYPE_CEX3C) },
{ /* end of list */ },
};
@@ -326,6 +329,11 @@ static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
function_code = ((unsigned char *)&msg->cprbx) + msg->cprbx.cprb_len;
memcpy(msg->hdr.function_code, function_code, sizeof(msg->hdr.function_code));
+ if (memcmp(function_code, "US", 2) == 0)
+ ap_msg->special = 1;
+ else
+ ap_msg->special = 0;
+
/* copy data block */
if (xcRB->request_data_length &&
copy_from_user(req_data, xcRB->request_data_address,
@@ -688,6 +696,7 @@ static long zcrypt_pcixcc_modexpo(struct zcrypt_device *zdev,
};
int rc;
+ ap_init_message(&ap_msg);
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
@@ -727,6 +736,7 @@ static long zcrypt_pcixcc_modexpo_crt(struct zcrypt_device *zdev,
};
int rc;
+ ap_init_message(&ap_msg);
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
@@ -766,6 +776,7 @@ static long zcrypt_pcixcc_send_cprb(struct zcrypt_device *zdev,
};
int rc;
+ ap_init_message(&ap_msg);
ap_msg.message = kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
@@ -805,6 +816,7 @@ static long zcrypt_pcixcc_rng(struct zcrypt_device *zdev,
};
int rc;
+ ap_init_message(&ap_msg);
ap_msg.message = kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
@@ -972,6 +984,7 @@ static int zcrypt_pcixcc_rng_supported(struct ap_device *ap_dev)
} __attribute__((packed)) *reply;
int rc, i;
+ ap_init_message(&ap_msg);
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
@@ -1016,14 +1029,15 @@ out_free:
static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
{
struct zcrypt_device *zdev;
- int rc;
+ int rc = 0;
zdev = zcrypt_device_alloc(PCIXCC_MAX_RESPONSE_SIZE);
if (!zdev)
return -ENOMEM;
zdev->ap_dev = ap_dev;
zdev->online = 1;
- if (ap_dev->device_type == AP_DEVICE_TYPE_PCIXCC) {
+ switch (ap_dev->device_type) {
+ case AP_DEVICE_TYPE_PCIXCC:
rc = zcrypt_pcixcc_mcl(ap_dev);
if (rc < 0) {
zcrypt_device_free(zdev);
@@ -1041,13 +1055,25 @@ static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE;
zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
}
- } else {
+ break;
+ case AP_DEVICE_TYPE_CEX2C:
zdev->user_space_type = ZCRYPT_CEX2C;
zdev->type_string = "CEX2C";
zdev->speed_rating = CEX2C_SPEED_RATING;
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE;
zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
+ break;
+ case AP_DEVICE_TYPE_CEX3C:
+ zdev->user_space_type = ZCRYPT_CEX3C;
+ zdev->type_string = "CEX3C";
+ zdev->speed_rating = CEX3C_SPEED_RATING;
+ zdev->min_mod_size = CEX3C_MIN_MOD_SIZE;
+ zdev->max_mod_size = CEX3C_MAX_MOD_SIZE;
+ break;
+ default:
+ goto out_free;
}
+
rc = zcrypt_pcixcc_rng_supported(ap_dev);
if (rc < 0) {
zcrypt_device_free(zdev);