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MFC r227409:
authordelphij <delphij@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Tue, 15 Nov 2011 17:42:00 +0000 (17:42 +0000)
committerdelphij <delphij@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Tue, 15 Nov 2011 17:42:00 +0000 (17:42 +0000)
commit834188992f0718f50247840cf29d7be45d87a647
tree035fcaa1878fd1678b6e56e5e80846f4ad40715ftree | snapshot
parentcc5058b774524a67447ed5f7157d8dcdb64dd0b9commit | diff
MFC r227409:

Do a dummy read to flush the interrupt ACK that we just performed,
ensuring that everything is really, truly consistent.

This fixes certain cases where one will see various:
  mfi0: COMMAND 0xffffffXXXXXXXXXX TIMEOUT AFTER XX SECONDS

Submitted by: scottl
Ok'ed by: jhb
Approved by: re (kib)

git-svn-id: svn://svn.freebsd.org/base/releng/9.0@227534 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
sys/dev/mfi/mfi.c diff | blob | history
9.0-RELEASE