linux-toradex.git/drivers/s390/cio/qdio_main.c, branch v3.18.21

qdio: Keep device-specific dbf entries

2014-06-16T08:31:58+00:00

Keep the per-device dbf entries until module is removed, with
proper error checking for debug feature setup.

Signed-off-by: Stefan Raspl 
Reviewed-by: Steffen Maier 
Signed-off-by: Martin Schwidefsky

s390/qdio: replace shift loop by ilog2

2014-06-10T08:48:28+00:00

account_sbals is called by get_inbound_buffer_frontier and
get_outbound_buffer_frontier with 'count' value > 0 so we can safely
convert shift loop to ilog2.

Cc: Joe Perches 
Cc: Andrew Morton 
Signed-off-by: Fabian Frederick 
Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

s390/qdio: correct program-controlled interruption checking

2014-01-29T08:07:50+00:00

Get rid of compile warning in qdio_int_handler_pci() when checking
for program-controlled interruption on outbound queues.

Signed-off-by: Ursula Braun 
Reviewed-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/qdio: bridgeport support - CHSC part

2014-01-14T14:16:09+00:00

Introduce function for the "Perform network-subchannel operation"
CHSC command with operation code "bridgeport information",
and bit definitions for "characteristics" pertaning to this command.

Signed-off-by: Eugene Crosser 
Reviewed-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

s390/qdio: fix atomic_sub() misusage

2013-10-24T15:16:50+00:00

get_inbound_buffer_frontier() makes use of the return value of atomic_sub()
which shouldn't work, since atomic_sub() is supposed to return void.
This only works on s390 because atomic_sub() gets mapped to atomic_sub_return()
with a define without changing it's return value to void.

So use atomic_sub_return() instead of atomic_sub() in qeth code before fixing
atomic ops.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/time: correct use of store clock fast

2013-10-22T07:16:40+00:00

The result of the store-clock-fast (STCKF) instruction is a bit fuzzy.
It can happen that the value stored on one CPU is smaller than the value
stored on another CPU, although the order of the stores is the other
way around. This can cause deltas of get_tod_clock() values to become
negative when they should not be.

We need to be more careful with store-clock-fast, this patch partially
reverts git commit e4b7b4238e666682555461fa52eecd74652f36bb "time:
always use stckf instead of stck if available". The get_tod_clock()
function now uses the store-clock-extended (STCKE) instruction.
get_tod_clock_fast() can be used if the fuzziness of store-clock-fast
is acceptable e.g. for wait loops local to a CPU.

Signed-off-by: Martin Schwidefsky

s390/qdio: remove unused variable

2013-07-16T10:21:57+00:00

Fix a "set but not used" warning found via make W=1.

Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

s390/qdio: remove unused function

2013-06-26T19:10:00+00:00

Remove the unused function qdio_trace_aob.

Acked-by: Ursula Braun 
Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

qdio: remove unused parameters

2013-02-28T08:37:12+00:00

Remove unused function parameters.

Signed-off-by: Stefan Raspl 
Signed-off-by: Martin Schwidefsky

s390/time: rename tod clock access functions

2013-02-14T14:55:10+00:00

Fix name clash with some common code device drivers and add "tod"
to all tod clock access function names.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky