Commit a303e887 authored by Harald Freudenberger's avatar Harald Freudenberger Committed by Heiko Carstens

s390/zcrypt: provide cex4 cca sysfs attributes for cex3

This patch introduces the sysfs attributes serialnr and
mkvps for cex2c and cex3c cards. These sysfs attributes
are available for cex4c and higher since
commit 7c4e91c0 ("s390/zcrypt: new sysfs attributes serialnr and mkvps")'
and this patch now provides the same for the older cex2
and cex3 cards.
Signed-off-by: default avatarHarald Freudenberger <freude@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
parent dc4b6ded
...@@ -25,6 +25,7 @@ ...@@ -25,6 +25,7 @@
#include "zcrypt_msgtype6.h" #include "zcrypt_msgtype6.h"
#include "zcrypt_cex2c.h" #include "zcrypt_cex2c.h"
#include "zcrypt_cca_key.h" #include "zcrypt_cca_key.h"
#include "zcrypt_ccamisc.h"
#define CEX2C_MIN_MOD_SIZE 16 /* 128 bits */ #define CEX2C_MIN_MOD_SIZE 16 /* 128 bits */
#define CEX2C_MAX_MOD_SIZE 256 /* 2048 bits */ #define CEX2C_MAX_MOD_SIZE 256 /* 2048 bits */
...@@ -58,6 +59,91 @@ static struct ap_device_id zcrypt_cex2c_queue_ids[] = { ...@@ -58,6 +59,91 @@ static struct ap_device_id zcrypt_cex2c_queue_ids[] = {
MODULE_DEVICE_TABLE(ap, zcrypt_cex2c_queue_ids); MODULE_DEVICE_TABLE(ap, zcrypt_cex2c_queue_ids);
/*
* CCA card additional device attributes
*/
static ssize_t cca_serialnr_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct cca_info ci;
struct ap_card *ac = to_ap_card(dev);
struct zcrypt_card *zc = ac->private;
memset(&ci, 0, sizeof(ci));
if (ap_domain_index >= 0)
cca_get_info(ac->id, ap_domain_index, &ci, zc->online);
return scnprintf(buf, PAGE_SIZE, "%s\n", ci.serial);
}
static struct device_attribute dev_attr_cca_serialnr =
__ATTR(serialnr, 0444, cca_serialnr_show, NULL);
static struct attribute *cca_card_attrs[] = {
&dev_attr_cca_serialnr.attr,
NULL,
};
static const struct attribute_group cca_card_attr_grp = {
.attrs = cca_card_attrs,
};
/*
* CCA queue additional device attributes
*/
static ssize_t cca_mkvps_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int n = 0;
struct cca_info ci;
struct zcrypt_queue *zq = to_ap_queue(dev)->private;
static const char * const cao_state[] = { "invalid", "valid" };
static const char * const new_state[] = { "empty", "partial", "full" };
memset(&ci, 0, sizeof(ci));
cca_get_info(AP_QID_CARD(zq->queue->qid),
AP_QID_QUEUE(zq->queue->qid),
&ci, zq->online);
if (ci.new_mk_state >= '1' && ci.new_mk_state <= '3')
n = scnprintf(buf, PAGE_SIZE, "AES NEW: %s 0x%016llx\n",
new_state[ci.new_mk_state - '1'], ci.new_mkvp);
else
n = scnprintf(buf, PAGE_SIZE, "AES NEW: - -\n");
if (ci.cur_mk_state >= '1' && ci.cur_mk_state <= '2')
n += scnprintf(buf + n, PAGE_SIZE - n,
"AES CUR: %s 0x%016llx\n",
cao_state[ci.cur_mk_state - '1'], ci.cur_mkvp);
else
n += scnprintf(buf + n, PAGE_SIZE - n, "AES CUR: - -\n");
if (ci.old_mk_state >= '1' && ci.old_mk_state <= '2')
n += scnprintf(buf + n, PAGE_SIZE - n,
"AES OLD: %s 0x%016llx\n",
cao_state[ci.old_mk_state - '1'], ci.old_mkvp);
else
n += scnprintf(buf + n, PAGE_SIZE - n, "AES OLD: - -\n");
return n;
}
static struct device_attribute dev_attr_cca_mkvps =
__ATTR(mkvps, 0444, cca_mkvps_show, NULL);
static struct attribute *cca_queue_attrs[] = {
&dev_attr_cca_mkvps.attr,
NULL,
};
static const struct attribute_group cca_queue_attr_grp = {
.attrs = cca_queue_attrs,
};
/** /**
* Large random number detection function. Its sends a message to a CEX2C/CEX3C * Large random number detection function. Its sends a message to a CEX2C/CEX3C
* card to find out if large random numbers are supported. * card to find out if large random numbers are supported.
...@@ -178,6 +264,17 @@ static int zcrypt_cex2c_card_probe(struct ap_device *ap_dev) ...@@ -178,6 +264,17 @@ static int zcrypt_cex2c_card_probe(struct ap_device *ap_dev)
if (rc) { if (rc) {
ac->private = NULL; ac->private = NULL;
zcrypt_card_free(zc); zcrypt_card_free(zc);
return rc;
}
if (ap_test_bit(&ac->functions, AP_FUNC_COPRO)) {
rc = sysfs_create_group(&ap_dev->device.kobj,
&cca_card_attr_grp);
if (rc) {
zcrypt_card_unregister(zc);
ac->private = NULL;
zcrypt_card_free(zc);
}
} }
return rc; return rc;
...@@ -189,8 +286,11 @@ static int zcrypt_cex2c_card_probe(struct ap_device *ap_dev) ...@@ -189,8 +286,11 @@ static int zcrypt_cex2c_card_probe(struct ap_device *ap_dev)
*/ */
static void zcrypt_cex2c_card_remove(struct ap_device *ap_dev) static void zcrypt_cex2c_card_remove(struct ap_device *ap_dev)
{ {
struct ap_card *ac = to_ap_card(&ap_dev->device);
struct zcrypt_card *zc = to_ap_card(&ap_dev->device)->private; struct zcrypt_card *zc = to_ap_card(&ap_dev->device)->private;
if (ap_test_bit(&ac->functions, AP_FUNC_COPRO))
sysfs_remove_group(&ap_dev->device.kobj, &cca_card_attr_grp);
if (zc) if (zc)
zcrypt_card_unregister(zc); zcrypt_card_unregister(zc);
} }
...@@ -239,7 +339,19 @@ static int zcrypt_cex2c_queue_probe(struct ap_device *ap_dev) ...@@ -239,7 +339,19 @@ static int zcrypt_cex2c_queue_probe(struct ap_device *ap_dev)
if (rc) { if (rc) {
aq->private = NULL; aq->private = NULL;
zcrypt_queue_free(zq); zcrypt_queue_free(zq);
return rc;
}
if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO)) {
rc = sysfs_create_group(&ap_dev->device.kobj,
&cca_queue_attr_grp);
if (rc) {
zcrypt_queue_unregister(zq);
aq->private = NULL;
zcrypt_queue_free(zq);
}
} }
return rc; return rc;
} }
...@@ -252,6 +364,8 @@ static void zcrypt_cex2c_queue_remove(struct ap_device *ap_dev) ...@@ -252,6 +364,8 @@ static void zcrypt_cex2c_queue_remove(struct ap_device *ap_dev)
struct ap_queue *aq = to_ap_queue(&ap_dev->device); struct ap_queue *aq = to_ap_queue(&ap_dev->device);
struct zcrypt_queue *zq = aq->private; struct zcrypt_queue *zq = aq->private;
if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO))
sysfs_remove_group(&ap_dev->device.kobj, &cca_queue_attr_grp);
if (zq) if (zq)
zcrypt_queue_unregister(zq); zcrypt_queue_unregister(zq);
} }
......
...@@ -529,22 +529,27 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev) ...@@ -529,22 +529,27 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
if (rc) { if (rc) {
ac->private = NULL; ac->private = NULL;
zcrypt_card_free(zc); zcrypt_card_free(zc);
goto out; return rc;
} }
if (ap_test_bit(&ac->functions, AP_FUNC_COPRO)) { if (ap_test_bit(&ac->functions, AP_FUNC_COPRO)) {
rc = sysfs_create_group(&ap_dev->device.kobj, rc = sysfs_create_group(&ap_dev->device.kobj,
&cca_card_attr_grp); &cca_card_attr_grp);
if (rc) if (rc) {
zcrypt_card_unregister(zc); zcrypt_card_unregister(zc);
ac->private = NULL;
zcrypt_card_free(zc);
}
} else if (ap_test_bit(&ac->functions, AP_FUNC_EP11)) { } else if (ap_test_bit(&ac->functions, AP_FUNC_EP11)) {
rc = sysfs_create_group(&ap_dev->device.kobj, rc = sysfs_create_group(&ap_dev->device.kobj,
&ep11_card_attr_grp); &ep11_card_attr_grp);
if (rc) if (rc) {
zcrypt_card_unregister(zc); zcrypt_card_unregister(zc);
ac->private = NULL;
zcrypt_card_free(zc);
}
} }
out:
return rc; return rc;
} }
...@@ -617,22 +622,27 @@ static int zcrypt_cex4_queue_probe(struct ap_device *ap_dev) ...@@ -617,22 +622,27 @@ static int zcrypt_cex4_queue_probe(struct ap_device *ap_dev)
if (rc) { if (rc) {
aq->private = NULL; aq->private = NULL;
zcrypt_queue_free(zq); zcrypt_queue_free(zq);
goto out; return rc;
} }
if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO)) { if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO)) {
rc = sysfs_create_group(&ap_dev->device.kobj, rc = sysfs_create_group(&ap_dev->device.kobj,
&cca_queue_attr_grp); &cca_queue_attr_grp);
if (rc) if (rc) {
zcrypt_queue_unregister(zq); zcrypt_queue_unregister(zq);
aq->private = NULL;
zcrypt_queue_free(zq);
}
} else if (ap_test_bit(&aq->card->functions, AP_FUNC_EP11)) { } else if (ap_test_bit(&aq->card->functions, AP_FUNC_EP11)) {
rc = sysfs_create_group(&ap_dev->device.kobj, rc = sysfs_create_group(&ap_dev->device.kobj,
&ep11_queue_attr_grp); &ep11_queue_attr_grp);
if (rc) if (rc) {
zcrypt_queue_unregister(zq); zcrypt_queue_unregister(zq);
aq->private = NULL;
zcrypt_queue_free(zq);
}
} }
out:
return rc; return rc;
} }
......
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