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s390/zcrypt: add support for EP11 coprocessor cards

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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
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31
drivers/s390/crypto/ap_bus.c
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@ -591,7 +591,13 @@ static int ap_init_queue(ap_qid_t qid)
if (rc != -ENODEV && rc != -EBUSY)
break;
if (i < AP_MAX_RESET - 1) {
udelay(5);
/* Time we are waiting until we give up (0.7sec * 90).
* Since the actual request (in progress) will not
* interrupted immediately for the reset command,
* we have to be patient. In worst case we have to
* wait 60sec + reset time (some msec).
*/
schedule_timeout(AP_RESET_TIMEOUT);
status = ap_test_queue(qid, &dummy, &dummy);
}
}
@ -992,6 +998,28 @@ static ssize_t ap_domain_show(struct bus_type *bus, char *buf)
static BUS_ATTR(ap_domain, 0444, ap_domain_show, NULL);
static ssize_t ap_control_domain_mask_show(struct bus_type *bus, char *buf)
{
if (ap_configuration != NULL) { /* QCI not supported */
if (test_facility(76)) { /* format 1 - 256 bit domain field */
return snprintf(buf, PAGE_SIZE,
"0x%08x%08x%08x%08x%08x%08x%08x%08x\n",
ap_configuration->adm[0], ap_configuration->adm[1],
ap_configuration->adm[2], ap_configuration->adm[3],
ap_configuration->adm[4], ap_configuration->adm[5],
ap_configuration->adm[6], ap_configuration->adm[7]);
} else { /* format 0 - 16 bit domain field */
return snprintf(buf, PAGE_SIZE, "%08x%08x\n",
ap_configuration->adm[0], ap_configuration->adm[1]);
}
} else {
return snprintf(buf, PAGE_SIZE, "not supported\n");
}
}
static BUS_ATTR(ap_control_domain_mask, 0444,
ap_control_domain_mask_show, NULL);
static ssize_t ap_config_time_show(struct bus_type *bus, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n", ap_config_time);
@ -1077,6 +1105,7 @@ static BUS_ATTR(poll_timeout, 0644, poll_timeout_show, poll_timeout_store);
static struct bus_attribute *const ap_bus_attrs[] = {
&bus_attr_ap_domain,
&bus_attr_ap_control_domain_mask,
&bus_attr_config_time,
&bus_attr_poll_thread,
&bus_attr_ap_interrupts,