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| author |   Ursula Braun <braunu@de.ibm.com> | 2008-04-17 07:46:03 +0200 |
|---|---|---|
| committer |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-04-17 07:46:58 +0200 |
| commit | 35b58b028dfc99dd390a09f66945947c4945fa64 (patch) | |
| tree | e4199f925608e366448b24880e081bd129a08e77 /drivers/s390/block/dasd_fba.c | |
| parent | [S390] sclp: Get rid of in_atomic() use. (diff) | |
| download | linux-dev-35b58b028dfc99dd390a09f66945947c4945fa64.tar.xz linux-dev-35b58b028dfc99dd390a09f66945947c4945fa64.zip | |
[S390] qdio: Unrecognized inbound traffic if many FCP devices are online
Problem:
Usually every FCP device has its own indicator field the adapter
uses to signal outstanding work. Once a certain limit of devices
is reached, a common indicator field is used. In certain scenarios
qdio resets this common indicator field, but handles only part of
the FCP-devices sharing the common indicator field. Thus inbound
traffic on the non-processed shared FCP-devices is not recognized
immediately.
Solution:
Make sure common indicator field is reset only, if all FCP-devices
sharing the indicator are processed.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'drivers/s390/block/dasd_fba.c')
0 files changed, 0 insertions, 0 deletions