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IB/qib: Fix multi-Florida HCA host panic on reboot 

Add check when setting configured contexts that the value does not
exceed the number of contexts allocated for the card.  If the value
exceeds the already allocated count, set it to what is already
allocated.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
hifive-unleashed-5.1
Mike Marciniszyn 2011-01-10 17:42:20 -08:00 committed by Roland Dreier
parent b3d5cb2f20
commit 5dbbcb97cc
1 changed files with 4 additions and 2 deletions
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6
drivers/infiniband/hw/qib/qib_init.c
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@ -92,9 +92,11 @@ unsigned long *qib_cpulist;
/* set number of contexts we'll actually use */
void qib_set_ctxtcnt(struct qib_devdata *dd)
{
if (!qib_cfgctxts)
if (!qib_cfgctxts) {
dd->cfgctxts = dd->first_user_ctxt + num_online_cpus();
else if (qib_cfgctxts < dd->num_pports)
if (dd->cfgctxts > dd->ctxtcnt)
dd->cfgctxts = dd->ctxtcnt;
} else if (qib_cfgctxts < dd->num_pports)
dd->cfgctxts = dd->ctxtcnt;
else if (qib_cfgctxts <= dd->ctxtcnt)
dd->cfgctxts = qib_cfgctxts;