projects / platform / kernel / linux-starfive.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 529683d) | patch
s390/qdio: allow to scan all 128 Input SBALs
authorJulian Wiedmann <jwi@linux.ibm.com>
Wed, 17 Jun 2020 13:30:14 +0000 (15:30 +0200)
committerHeiko Carstens <hca@linux.ibm.com>
Mon, 20 Jul 2020 08:55:22 +0000 (10:55 +0200)
commit2bbf282a5e8e7e6b36586718b484a36117b6b8a0
tree6cad0b850638a7f616fffeca2eb54a5fbdcd21ectree | snapshot
parent529683d4705b6b1fa1c2f902e859ad6a8d17e31ecommit | diff
s390/qdio: allow to scan all 128 Input SBALs

The comment is inaccurate, qdio_inbound_q_moved() and/or its callers no
longer get confused by a count of 128 completed SBALs.

Scanning all 128 SBALs at once can improve IRQ reduction (as we now
place the ACK at the right spot), and reduce the amount of processing
needed to handle all completed SBALs.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
drivers/s390/cio/qdio_main.c diff | blob | history
Domain: System / Kernel;