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25f269f173
linux/drivers/s390/cio
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Jan Glauber 25f269f173 [S390] qdio: EQBS retry after CCQ 96 
Running under z/VM with QIOASSIST enabled, qdio queues could stall if EQBS
did not extract all SBAL states. Add an instant retry for EQBS and, if the
retry fails, set up a timer to ensure outstanding SBALs are processed later.

While at it, optimize qdio_do_eqbs and qdio_do_sqbs to eliminate 3 jumps on
the hot path.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30 15:16:45 +01:00
..
airq.c [S390] cio: airq - fix array boundary 2009-03-26 15:24:14 +01:00
blacklist.c s390: Convert vmalloc/memset to vzalloc 2011-09-15 13:55:02 +02:00
blacklist.h
ccwgroup.c [S390] ccwgroup: cleanup 2011-10-30 15:16:43 +01:00
ccwreq.c [S390] cio: add message for timeouts on internal I/O 2011-10-30 15:16:41 +01:00
chp.c [S390] cio: update descriptor in chsc_chp_vary 2010-10-25 16:10:18 +02:00
chp.h [S390] cio: update descriptor in chsc_chp_vary 2010-10-25 16:10:18 +02:00
chsc_sch.c [S390] chsc_sch: add support for irq statistics 2011-10-30 15:16:44 +01:00
chsc_sch.h [S390] cio: Add chsc subchannel driver. 2008-07-14 10:02:12 +02:00
chsc.c [S390] chsc: process channel-path-availability information 2011-05-23 10:24:31 +02:00
chsc.h [S390] cio: obtain mdc value per channel path 2011-01-05 12:47:28 +01:00
cio_debug.h [S390] cio: Remove cio_msg kernel parameter. 2008-05-07 09:23:01 +02:00
cio.c [S390] kdump backend code 2011-10-30 15:16:42 +01:00
cio.h [S390] css: remove subchannel private 2011-03-15 17:08:24 +01:00
cmf.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
crw.c [S390] cio: wait for channel report 2010-02-26 22:37:29 +01:00
css.c PM: Improve error code of pm_notifier_call_chain() 2011-07-15 23:58:20 +02:00
css.h [S390] css_bus_type: make it static 2011-03-15 17:08:24 +01:00
device_fsm.c [S390] get rid of unused variables 2011-05-23 10:24:28 +02:00
device_id.c [S390] cio: use all available paths for some internal I/O 2010-08-09 18:12:54 +02:00
device_ops.c [S390] get rid of unused variables 2011-05-23 10:24:28 +02:00
device_pgid.c [S390] cio: notify drivers of channel path events 2010-10-25 16:10:19 +02:00
device_status.c [S390] cio: remove intretry flag 2009-12-07 12:51:31 +01:00
device.c [S390] fix mismatch in summation of I/O IRQ statistics 2011-10-30 15:16:15 +01:00
device.h [S390] fix mismatch in summation of I/O IRQ statistics 2011-10-30 15:16:15 +01:00
fcx.c [S390] drivers: Correct size given to memset 2009-12-18 17:43:32 +01:00
idset.c [S390] cio: introduce consistent subchannel scanning 2009-09-22 22:58:42 +02:00
idset.h [S390] cio: introduce consistent subchannel scanning 2009-09-22 22:58:42 +02:00
io_sch.h [S390] fix mismatch in summation of I/O IRQ statistics 2011-10-30 15:16:15 +01:00
ioasm.h [S390] cio: move asms to generic header 2011-03-15 17:08:23 +01:00
isc.c [S390] cio: introduce isc_(un)register functions. 2008-07-14 10:02:11 +02:00
itcw.c [S390] cio: reduce memory consumption of itcw structures 2011-01-05 12:47:29 +01:00
Makefile [S390] qdio: convert global statistics to per-device stats 2010-01-04 09:05:58 +01:00
orb.h [S390] cio: move orb definitions to separate header 2011-03-15 17:08:23 +01:00
qdio_debug.c [S390] qdio: add timestamp for last queue scan time 2011-10-30 15:16:45 +01:00
qdio_debug.h [S390] qdio: rework debug feature logging 2008-12-25 13:38:59 +01:00
qdio_main.c [S390] qdio: EQBS retry after CCQ 96 2011-10-30 15:16:45 +01:00
qdio_setup.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-10-28 16:44:18 -07:00
qdio_thinint.c [S390] qdio: add timestamp for last queue scan time 2011-10-30 15:16:45 +01:00
qdio.h [S390] qdio: add timestamp for last queue scan time 2011-10-30 15:16:45 +01:00