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authorCorey Minyard <minyard@acm.org>2005-11-07 01:00:01 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-07 07:53:44 -0800
commit21dcd300b15f87ce10df8773d029708f27499aa7 (patch)
tree451f1a57e528dd6f0b813ee1f6803d4e66f2aed6 /drivers/connector
parentea94027b92dd0d02d238d5984cd9089343c1d6cc (diff)
[PATCH] ipmi: bt restart reset fixes
The current BT retry/reset mechanism fails to succeed on a PowerEdge 1650, when the controller is wedged with B2H_ATN asserted at XACTION_START. If this occurs, no further commands will ever succeed unless the state of the controller is first cleared out. Furthermore, the soft reset would only occur if the first command after insmod was the one that timed out, not if a later command timed out. This patch changes the retry/reset mechanism to be as follows: Before retrying a command, clear the state of the BT controller such that the flags represent ready for a new transaction. This increases the chance of success of the restarted transaction. After 2 retries, issue a soft reset and retry one more time before giving up and reporting back a failure. Signed-off-by: Matt Domsch <Matt_Domsch@dell.com> Acked-by: Rocky Craig <rocky.craig@hp.com> Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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