diff options
| author | Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com> | 2013-11-20 10:47:13 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-12-18 17:37:15 +0100 |
| commit | 91f3e3eaba4413e76ce8e12e3ef10525a889142f (patch) | |
| tree | e4cef25c9b51388a462776c6a8e642571fa2f19b /drivers/s390/crypto/ap_bus.c | |
| parent | 9efe4f2992025c3a4027c60bf36ae9d710ca3781 (diff) | |
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>
Diffstat (limited to 'drivers/s390/crypto/ap_bus.c')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 02300dcfac9..ab3baa7f950 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -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, |