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25b41a7b67
linux/drivers/s390/char
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Martin Schwidefsky 25b41a7b67 s390/sclp: add parameter to specify number of buffer pages 
Add a kernel parameter to be able to specify the number of pages to be
used as output buffer by the line-mode sclp driver and the vt220 sclp
driver. The current number of output pages is 6, if the service element
is unavailable the boot messages alone can fill up the output buffer.
If this happens the system blocks until the service element is working
again. For a large LPAR with many devices it is sensible to have the
ability to increase the output buffer size. To help to debug this
situation add a counter for the page-pool-empty situation and make it
available as a sclp driver attribute.
To avoid the system to stall until the service element works again
add another kernel parameter to allow to drop output buffers.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:10:03 +02:00
..
con3215.c s390/cio: ccw_device_force_console don't use static variable 2013-04-17 14:07:31 +02:00
con3270.c s390/3270: drop unused spinlock from struct con3270 2012-09-26 15:45:11 +02:00
ctrlchar.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ctrlchar.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
defkeymap.c
defkeymap.map
fs3270.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
Kconfig tty: Added a CONFIG_TTY option to allow removal of TTY 2013-01-18 16:15:27 -08:00
keyboard.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
keyboard.h TTY: switch tty_schedule_flip 2013-01-15 22:43:15 -08:00
Makefile [S390] get CPC image name 2011-05-23 10:24:32 +02:00
monreader.c s390/monreader: Remove redundant NULL check before kfree 2013-04-17 14:07:25 +02:00
monwriter.c [S390] monwriter: fix return code handling 2011-05-23 10:24:29 +02:00
raw3270.c s390/cio: ccw_device_force_console don't use static variable 2013-04-17 14:07:31 +02:00
raw3270.h s390/3270: asynchronous size sensing 2013-02-14 15:55:03 +01:00
sclp_async.c [S390] sclp_async: Use kstrtoul_from_user 2011-08-03 16:44:20 +02:00
sclp_cmd.c s390/memory hotplug,sclp: get rid of per memory increment usecount 2013-05-02 15:50:28 +02:00
sclp_con.c s390/sclp: add parameter to specify number of buffer pages 2013-06-26 21:10:03 +02:00
sclp_config.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_cpi_sys.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_cpi_sys.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_cpi.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_ocf.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_quiesce.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_rw.c s390/sclp: use -EOPNOTSUPP instead of -ENOSYS 2012-09-26 15:45:13 +02:00
sclp_rw.h [S390] sclp: fix compile error for !SCLP_CONSOLE 2009-07-07 16:37:50 +02:00
sclp_sdias.c s390/sclp_sdias: Add missing break and "fall through" 2012-08-08 07:32:55 -07:00
sclp_tty.c TTY: add tty_port_tty_wakeup helper 2013-03-18 16:19:45 -07:00
sclp_tty.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
sclp_vt220.c s390/sclp: add parameter to specify number of buffer pages 2013-06-26 21:10:03 +02:00
sclp.c s390/sclp: add parameter to specify number of buffer pages 2013-06-26 21:10:03 +02:00
sclp.h s390/sclp: add parameter to specify number of buffer pages 2013-06-26 21:10:03 +02:00
tape_34xx.c s390/irq: remove split irq fields from /proc/stat 2013-01-08 10:57:07 +01:00
tape_3590.c s390/irq: remove split irq fields from /proc/stat 2013-01-08 10:57:07 +01:00
tape_3590.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_char.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
tape_class.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_class.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_core.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_proc.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_std.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
tape_std.h s390/tape: remove even more tape block leftovers 2012-09-26 15:45:20 +02:00
tape.h s390/tape: remove even more tape block leftovers 2012-09-26 15:45:20 +02:00
tty3270.c s390/3270: fix minor_start issue 2013-03-21 13:35:39 +01:00
tty3270.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vmcp.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vmcp.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vmlogrdr.c s390/vmlogrdr: change return value from -ENOSYS to -EOPNOTSUPP 2012-09-26 15:45:16 +02:00
vmur.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
vmur.h
vmwatchdog.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
zcore.c s390/mem_detect: limit memory detection loop to "mem=" parameter 2013-05-02 15:50:26 +02:00