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50f769df1c
linux/drivers/s390/cio
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Jan Glauber 50f769df1c [S390] qdio: improve inbound buffer acknowledgement 
- Use automatic acknowledgement of incoming buffers in QEBSM mode
- Move ACK for non-QEBSM mode always to the newest buffer to prevent
  a race with qdio_stop_polling
- Remove the polling spinlock, the upper layer drivers return new buffers
  in the same code path and could not run in parallel
- Don't flood the error log in case of no-target-buffer-empty
- In handle_inbound we check if we would overwrite an ACK'ed buffer, if so
  advance the pointer to the oldest ACK'ed buffer so we don't overwrite an
  empty buffer in qdio_stop_polling

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-12-25 13:38:59 +01:00
..
airq.c [S390] cio: Allow adapter interrupt handlers per isc. 2008-07-14 10:02:10 +02:00
blacklist.c [S390] cio: introduce purge function for /proc/cio_ignore 2008-10-10 21:33:47 +02:00
blacklist.h [PATCH] s390: multiple subchannel sets support 2006-01-06 08:33:52 -08:00
ccwgroup.c [S390] bus_id -> dev_set_name() changes 2008-10-10 21:33:50 +02:00
chp.c [S390] bus_id -> dev_set_name() changes 2008-10-10 21:33:50 +02:00
chp.h [S390] cio: Repair chpid event handling. 2008-07-14 10:02:11 +02:00
chsc_sch.c [S390] cio: Correct use of ! and & 2008-10-10 21:33:54 +02:00
chsc_sch.h [S390] cio: Add chsc subchannel driver. 2008-07-14 10:02:12 +02:00
chsc.c [S390] cio: Export chsc_error_from_response(). 2008-07-17 17:22:10 +02:00
chsc.h [S390] cio: Export chsc_error_from_response(). 2008-07-17 17:22:10 +02:00
cio_debug.h [S390] cio: Remove cio_msg kernel parameter. 2008-05-07 09:23:01 +02:00
cio.c [S390] Move private simple udelay function to arch/s390/lib/delay.c. 2008-10-10 21:33:58 +02:00
cio.h [S390] bus_id -> dev_set_name() for css and ccw busses 2008-10-10 21:33:53 +02:00
cmf.c [S390] Cleanup cio printk messages. 2008-07-14 10:02:18 +02:00
css.c [S390] bus_id -> dev_set_name() changes 2008-10-10 21:33:50 +02:00
css.h [S390] cio: Add chsc subchannel driver. 2008-07-14 10:02:12 +02:00
device_fsm.c [S390] bus_id -> dev_name conversions 2008-10-10 21:33:49 +02:00
device_id.c [S390] cio: provide functions for fcx enabled I/O 2008-07-14 10:02:08 +02:00
device_ops.c [S390] bus_id -> dev_name conversions 2008-10-10 21:33:49 +02:00
device_pgid.c [S390] cio: provide functions for fcx enabled I/O 2008-07-14 10:02:08 +02:00
device_status.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
device.c [S390] cio: Fix refcount after moving devices. 2008-11-14 18:18:54 +01:00
device.h [S390] cio: introduce purge function for /proc/cio_ignore 2008-10-10 21:33:47 +02:00
fcx.c [S390] cio: provide functions for fcx enabled I/O 2008-07-14 10:02:08 +02:00
idset.c [S390] cio: Memory allocation for idset changed. 2008-08-01 16:39:31 +02:00
idset.h [S390] cio: Add chsc subchannel driver. 2008-07-14 10:02:12 +02:00
io_sch.h [S390] cio: inline assembly cleanup 2008-10-10 21:33:53 +02:00
ioasm.h [S390] cio: inline assembly cleanup 2008-10-10 21:33:53 +02:00
isc.c [S390] cio: introduce isc_(un)register functions. 2008-07-14 10:02:11 +02:00
itcw.c [S390] cio: provide helper functions for fcx enabled I/O 2008-07-14 10:02:08 +02:00
Makefile [S390] qdio: new qdio driver. 2008-07-17 17:22:10 +02:00
qdio_debug.c [S390] qdio: improve inbound buffer acknowledgement 2008-12-25 13:38:59 +01:00
qdio_debug.h [S390] qdio: rework debug feature logging 2008-12-25 13:38:59 +01:00
qdio_main.c [S390] qdio: improve inbound buffer acknowledgement 2008-12-25 13:38:59 +01:00
qdio_perf.c [S390] qdio: improve inbound buffer acknowledgement 2008-12-25 13:38:59 +01:00
qdio_perf.h [S390] qdio: improve inbound buffer acknowledgement 2008-12-25 13:38:59 +01:00
qdio_setup.c [S390] qdio: improve inbound buffer acknowledgement 2008-12-25 13:38:59 +01:00
qdio_thinint.c [S390] qdio: improve inbound buffer acknowledgement 2008-12-25 13:38:59 +01:00
qdio.h [S390] qdio: improve inbound buffer acknowledgement 2008-12-25 13:38:59 +01:00
scsw.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00