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author | Julian Wiedmann <jwi@linux.ibm.com> | 2020-04-21 10:38:18 +0200 |
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committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-05-20 10:22:50 +0200 |
commit | c70d82e96644bd660ea53209c19f75cd86c560d6 (patch) | |
tree | a36f9bbd30c61b5ef70ecd1b509b1c6dd43aa473 /drivers/s390/Makefile | |
parent | s390/qdio: refactor ACK processing for primed SBALs (diff) | |
download | linux-dev-c70d82e96644bd660ea53209c19f75cd86c560d6.tar.xz linux-dev-c70d82e96644bd660ea53209c19f75cd86c560d6.zip |
s390/qdio: add IRQ reduction for error SBALs
SBALs in PRIMED or ERROR state represent new work on the Input Queue.
But while inbound_primed() does all sorts of ACK management for new
PRIMED work, the same handling is currently missing for ERROR work.
In particular the path for ERROR work doesn't clear up _old_ ACKs.
Treat ERROR work the same as PRIMED work, but consider that the QEBSM
auto-ACK feature doesn't apply here. So we need to set the ACK manually,
as if it was a non-QEBSM device.
Note that this doesn't aspire to actually improve performance, the main
goal is to just unify the code paths and have consistent behaviour.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390/Makefile')
0 files changed, 0 insertions, 0 deletions