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MFC r227409:
authordelphij <delphij@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Tue, 15 Nov 2011 17:30:03 +0000 (17:30 +0000)
committerdelphij <delphij@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Tue, 15 Nov 2011 17:30:03 +0000 (17:30 +0000)
commitca7f5d307a6c7d31b6abc1f77d58b568031ae098
treee3476ab83c71b68c203a34507c485f40675eb1b3tree | snapshot
parenta803b92ee38ec015ade0bfd6ce83f389045f98a9commit | 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/stable/9@227533 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
sys/dev/mfi/mfi.c diff | blob | history
9-STABLE