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IB/mthca: Fix thinko in init_mr_table()

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Commit c20e20ab ("IB/mthca: Merge MR and FMR space on 64-bit systems")
swapped the number of MTTs and MPTs when initializing the MR table. As
a result, we get a kernel oops when the number of MTT segments
allocated exceeds 0x20000.

Noted by Troy Benjegerdes <troy@scl.ameslab.gov>, and reproduced by
Dotan Barak <dotanb@mellanox.co.il>.  This fixes
https://bugs.openfabrics.org/show_bug.cgi?id=490

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Michael S. Tsirkin 2007-03-25 11:17:43 +02:00 committed by Roland Dreier
parent ed6ee5178e
commit 0264d88531
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/hw/mthca/mthca_mr.c
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@ -881,8 +881,8 @@ int mthca_init_mr_table(struct mthca_dev *dev)
} }
mpts = mtts = 1 << i; mpts = mtts = 1 << i;
} else { } else {
mpts = dev->limits.num_mtt_segs; mtts = dev->limits.num_mtt_segs;
mtts = dev->limits.num_mpts; mpts = dev->limits.num_mpts;
} }
if (!mthca_is_memfree(dev) && if (!mthca_is_memfree(dev) &&