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| author |   Dean Luick <dean.luick@intel.com> | 2016-04-12 10:50:10 -0700 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-04-28 16:32:27 -0400 |
| commit | 153d58cd8e2871ec99d3a6570dd26b6f569a8b5e (patch) | |
| tree | fd1fe31e123078b642e71ebea2bac5e1d60222f6 /drivers/staging/rdma | |
| parent | IB/hfi1: Fix i2c resource reservation checks (diff) | |
| download | linux-dev-153d58cd8e2871ec99d3a6570dd26b6f569a8b5e.tar.xz linux-dev-153d58cd8e2871ec99d3a6570dd26b6f569a8b5e.zip | |
IB/hfi1: Fix QOS num_vl bit width
The bit width for num_vls, n, needs to be calculated based on
the pow2 rounded up of the number of vls. Otherwise num_vls of 3,
5, 6, and 7 will have misplaced QOS RSM map entries.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/staging/rdma')
| -rw-r--r-- | drivers/staging/rdma/hfi1/chip.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/rdma/hfi1/chip.c b/drivers/staging/rdma/hfi1/chip.c index 16eb653903e0..f1efbe56536a 100644 --- a/drivers/staging/rdma/hfi1/chip.c +++ b/drivers/staging/rdma/hfi1/chip.c @@ -13508,7 +13508,7 @@ static void init_qos(struct hfi1_devdata *dd, u32 first_ctxt) goto bail; qpns_per_vl = __roundup_pow_of_two(max_by_vl); /* determine bits vl */ - n = ilog2(num_vls); + n = ilog2(__roundup_pow_of_two(num_vls)); /* determine bits for qpn */ m = ilog2(qpns_per_vl); if ((m + n) > 7) |