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yaml
---
r: 173268
b: refs/heads/master
c: 8e89b6b
h: refs/heads/master
v: v3
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Felix Beck authored and Martin Schwidefsky committed Dec 7, 2009
1 parent 2d3910e commit 547379b
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Showing 4 changed files with 68 additions and 29 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ffda4f719866bb10a8edb7de3e6bf564ff7c3de4
refs/heads/master: 8e89b6be76927751af5608490158100974b339e6
2 changes: 2 additions & 0 deletions trunk/drivers/s390/crypto/zcrypt_api.h
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Expand Up @@ -71,6 +71,8 @@ struct ica_z90_status {
#define ZCRYPT_PCIXCC_MCL3 4
#define ZCRYPT_CEX2C 5
#define ZCRYPT_CEX2A 6
#define ZCRYPT_CEX3C 7
#define ZCRYPT_CEX3A 8

/**
* Large random numbers are pulled in 4096 byte chunks from the crypto cards
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71 changes: 46 additions & 25 deletions trunk/drivers/s390/crypto/zcrypt_cex2a.c
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Expand Up @@ -39,13 +39,20 @@

#define CEX2A_MIN_MOD_SIZE 1 /* 8 bits */
#define CEX2A_MAX_MOD_SIZE 256 /* 2048 bits */
#define CEX3A_MIN_MOD_SIZE CEX2A_MIN_MOD_SIZE
#define CEX3A_MAX_MOD_SIZE CEX2A_MAX_MOD_SIZE

#define CEX2A_SPEED_RATING 970
#define CEX3A_SPEED_RATING 1100

#define CEX2A_MAX_MESSAGE_SIZE 0x390 /* sizeof(struct type50_crb2_msg) */
#define CEX2A_MAX_RESPONSE_SIZE 0x110 /* max outputdatalength + type80_hdr */

#define CEX3A_MAX_MESSAGE_SIZE CEX2A_MAX_MESSAGE_SIZE
#define CEX3A_MAX_RESPONSE_SIZE CEX2A_MAX_RESPONSE_SIZE

#define CEX2A_CLEANUP_TIME (15*HZ)
#define CEX3A_CLEANUP_TIME CEX2A_CLEANUP_TIME

static struct ap_device_id zcrypt_cex2a_ids[] = {
{ AP_DEVICE(AP_DEVICE_TYPE_CEX2A) },
Expand Down Expand Up @@ -375,31 +382,45 @@ static struct zcrypt_ops zcrypt_cex2a_ops = {
*/
static int zcrypt_cex2a_probe(struct ap_device *ap_dev)
{
struct zcrypt_device *zdev;
int rc;

zdev = zcrypt_device_alloc(CEX2A_MAX_RESPONSE_SIZE);
if (!zdev)
return -ENOMEM;
zdev->ap_dev = ap_dev;
zdev->ops = &zcrypt_cex2a_ops;
zdev->online = 1;
zdev->user_space_type = ZCRYPT_CEX2A;
zdev->type_string = "CEX2A";
zdev->min_mod_size = CEX2A_MIN_MOD_SIZE;
zdev->max_mod_size = CEX2A_MAX_MOD_SIZE;
zdev->short_crt = 1;
zdev->speed_rating = CEX2A_SPEED_RATING;
ap_dev->reply = &zdev->reply;
ap_dev->private = zdev;
rc = zcrypt_device_register(zdev);
if (rc)
goto out_free;
return 0;

out_free:
ap_dev->private = NULL;
zcrypt_device_free(zdev);
struct zcrypt_device *zdev = NULL;
int rc = 0;

switch (ap_dev->device_type) {
case AP_DEVICE_TYPE_CEX2A:
zdev = zcrypt_device_alloc(CEX2A_MAX_RESPONSE_SIZE);
if (!zdev)
return -ENOMEM;
zdev->user_space_type = ZCRYPT_CEX2A;
zdev->type_string = "CEX2A";
zdev->min_mod_size = CEX2A_MIN_MOD_SIZE;
zdev->max_mod_size = CEX2A_MAX_MOD_SIZE;
zdev->short_crt = 1;
zdev->speed_rating = CEX2A_SPEED_RATING;
break;
case AP_DEVICE_TYPE_CEX3A:
zdev = zcrypt_device_alloc(CEX3A_MAX_RESPONSE_SIZE);
if (!zdev)
return -ENOMEM;
zdev->user_space_type = ZCRYPT_CEX3A;
zdev->type_string = "CEX3A";
zdev->min_mod_size = CEX3A_MIN_MOD_SIZE;
zdev->max_mod_size = CEX3A_MAX_MOD_SIZE;
zdev->short_crt = 1;
zdev->speed_rating = CEX3A_SPEED_RATING;
break;
}
if (zdev != NULL) {
zdev->ap_dev = ap_dev;
zdev->ops = &zcrypt_cex2a_ops;
zdev->online = 1;
ap_dev->reply = &zdev->reply;
ap_dev->private = zdev;
rc = zcrypt_device_register(zdev);
}
if (rc) {
ap_dev->private = NULL;
zcrypt_device_free(zdev);
}
return rc;
}

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22 changes: 19 additions & 3 deletions trunk/drivers/s390/crypto/zcrypt_pcixcc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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_MCL3_SPEED_RATING 7870
#define CEX2C_SPEED_RATING 8540
#define CEX3C_SPEED_RATING 10000 /* 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 */
Expand Down Expand Up @@ -1026,14 +1029,15 @@ static int zcrypt_pcixcc_rng_supported(struct ap_device *ap_dev)
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);
Expand All @@ -1051,13 +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);
Expand Down

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