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IB/mthca: Fix check of size in SRQ creation 

The previous patch for Tavor broke MemFree logic.

The driver should perform limit check only for Tavor.  For MemFree,
the check is incorrect, since ds (WQE stride) is always a power-of-2
(although the max_desc_size may not be).

In Tavor, however, WQE stride and desc_size are the same, and are not
necessarily power-of-2.  The check was really for the WQE stride (and
it Tavor, we use max_desc_size for the stride).

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
hifive-unleashed-5.1
Jack Morgenstein 2006-03-26 17:01:12 +02:00 committed by Roland Dreier
parent 3f89f83449
commit a07bacca7b
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/mthca/mthca_srq.c
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@ -206,7 +206,7 @@ int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
roundup_pow_of_two(sizeof (struct mthca_next_seg) +
srq->max_gs * sizeof (struct mthca_data_seg)));
if (ds > dev->limits.max_desc_sz)
if (!mthca_is_memfree(dev) && (ds > dev->limits.max_desc_sz))
return -EINVAL;
srq->wqe_shift = long_log2(ds);