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IB/ipath: Prevent link-recovery code from negating admin disable

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The link can be put in LINKDOWN_DISABLE state either locally or via a
MAD.  However, the link-recovery code will take it out of that state as
a side-effect of attempts to clear SerDes/XGXS issues.

We add a flag to indicate "link is down on purpose, leave it alone."

Signed-off-by: Michael Albaugh <michael.albaugh@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Michael Albaugh
2008-04-16 21:09:26 -07:00
committed by Roland Dreier
parent 8c641d4b5f
commit 4330e4dad7
6 changed files with 55 additions and 29 deletions
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2
drivers/infiniband/hw/ipath/ipath_kernel.h
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@@ -848,6 +848,8 @@ void ipath_hol_event(unsigned long);
/* Suppress heartbeat, even if turning off loopback */
#define IPATH_NO_HRTBT 0x1000000
#define IPATH_HAS_MULT_IB_SPEED 0x8000000
/* Linkdown-disable intentionally, Do not attempt to bring up */
#define IPATH_IB_LINK_DISABLED 0x40000000
#define IPATH_IB_FORCE_NOTIFY 0x80000000 /* force notify on next ib change */
/* Bits in GPIO for the added interrupts */