kernel/git/stable/linux.git/drivers/s390/crypto, branch linux-4.3.y

drivers/s390/crypto/zcrypt_api.c: use seq_hex_dump() to dump buffers

2015-09-10T20:29:01+00:00

Instead of custom approach let's use recently introduced seq_hex_dump() helper. Signed-off-by: Andy Shevchenko Acked-by: Ingo Tuchscherer Cc: Alexander Viro Cc: Joe Perches Cc: Tadeusz Struk Cc: Helge Deller Cc: Catalin Marinas Cc: Vladimir Kondratiev Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

s390/zcrypt: use msleep() instead of mdelay()

2015-08-19T08:40:26+00:00

There is no need to busy loop and monopolize a cpu for up to ~2 seconds. The code in question that calls mdelay() is preemptible anyway, so better let the kernel schedule different processes than just looping and causing unnecessary delays. Signed-off-by: Heiko Carstens Acked-by: Martin Schwidefsky Signed-off-by: Martin Schwidefsky

s390/zcrypt: enable s390 hwrng to seed kernel entropy

2015-07-01T07:34:37+00:00

Set the 'quality' property in the zcrypt rng device structure to enable the zcrypt hwrng device to take part in the kernel entropy seeding process. A module parameter named hwrng_seed will be introduced to disable the participation. By default this parameter is set to 1 (enabled). Signed-off-by: Ingo Tuchscherer Signed-off-by: Harald Freudenberger Signed-off-by: Martin Schwidefsky

s390/zcrypt: Fixed reset and interrupt handling of AP queues

2015-06-25T07:39:23+00:00

In case of request timeouts an AP queue reset will be triggered to recover and reinitialize the AP queue. The previous behavior was an immediate reset execution regardless of current/pending requests. Due to newly changed firmware behavior the reset may be delayed, based on the priority of pending request. The device driver's waiting time frame was limited, hence it did not received the reset response. As a consequence interrupts would not be enabled afterwards. The RAPQ (queue reset) and AQIC (interrupt control) commands will be treated fully asynchronous now. The device driver will check the reset and interrupt states periodically, thus it can handle the reinitialization properly. Signed-off-by: Ingo Tuchscherer Signed-off-by: Martin Schwidefsky

s390/zcrypt: remove obsolete __constant

2015-06-18T13:45:30+00:00

__constant_cpu_to_le16 converted to cpu_to_le16 Signed-off-by: Vaishali Thakkar Signed-off-by: Ingo Tuchscherer Signed-off-by: Martin Schwidefsky

s390/zcrypt: Fix invalid domain handling during ap module unload

2015-05-13T07:57:29+00:00

Added domain checking to prevent reset failures caused by invalid domains. Corrected removal sequence of bus attributes and device. Reviewed-by: Harald Freudenberger Signed-off-by: Ingo Tuchscherer Signed-off-by: Martin Schwidefsky

s390/zcrypt: fixed ap poll timer behavior

2015-04-30T11:50:35+00:00

The ap poll timer restart condition was wrong. Hence the poll timer was not restarted reliable when setting a new time interval via the poll_timeout sysfs attribute. Added missing timer locking. Reported-by: Thomas Gleixner Signed-off-by: Ingo Tuchscherer Signed-off-by: Martin Schwidefsky

s390: remove test_facility(2) (== z/Architecture mode active) checks

2015-03-25T10:49:37+00:00

Given that the kernel now always runs in 64 bit mode, it is pointless to check if the z/Architecture mode is active. Remove the checks. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390: remove 31 bit support

2015-03-25T10:49:33+00:00

Remove the 31 bit support in order to reduce maintenance cost and effectively remove dead code. Since a couple of years there is no distribution left that comes with a 31 bit kernel. The 31 bit kernel also has been broken since more than a year before anybody noticed. In addition I added a removal warning to the kernel shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning message") which let everybody know about the plan to remove 31 bit code. We didn't get any response. Given that the last 31 bit only machine was introduced in 1999 let's remove the code. Anybody with 31 bit user space code can still use the compat mode. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/zcrypt: fixed domain scanning problem (again)

2015-02-04T08:03:19+00:00

Older machines with more then 16 domains need a special check before PQAP instructions can be processed. With commit 5bc334bff9a6e189 this check was reverted by accident. This patch re-establishes the additional code needed for checking the extended domains for older machines. Signed-off-by: Ingo Tuchscherer Signed-off-by: Martin Schwidefsky