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| author |   Chien Tin Tung <Chien.Tin.Tung@intel.com> | 2016-04-22 14:14:24 -0500 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-04-28 16:32:54 -0400 |
| commit | 8e9f04a7c744bb18c193779d04cc5d8d4c21dd11 (patch) | |
| tree | 2d85d4d91c8f6e4fb79d9e159eacfa72589451f0 /drivers/infiniband/hw/i40iw | |
| parent | RDMA/i40iw: Fixes for WQE alignment (diff) | |
| download | linux-dev-8e9f04a7c744bb18c193779d04cc5d8d4c21dd11.tar.xz linux-dev-8e9f04a7c744bb18c193779d04cc5d8d4c21dd11.zip | |
RDMA/i40iw: Correct STag mask to min of 14 bits
STag index mask is calculated incorrectly, missing
the 14 bits minimum requirement. Add max macro to use
either # of MRs or 14 bits in the mask size calculation.
Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/i40iw')
| -rw-r--r-- | drivers/infiniband/hw/i40iw/i40iw_hw.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_hw.c b/drivers/infiniband/hw/i40iw/i40iw_hw.c index 615e115247b0..3ee0cad96bc6 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_hw.c +++ b/drivers/infiniband/hw/i40iw/i40iw_hw.c @@ -107,7 +107,8 @@ u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev) spin_lock_init(&iwdev->resource_lock); spin_lock_init(&iwdev->qptable_lock); - mrdrvbits = 24 - get_count_order(iwdev->max_mr); + /* stag index mask has a minimum of 14 bits */ + mrdrvbits = 24 - max(get_count_order(iwdev->max_mr), 14); iwdev->mr_stagmask = ~(((1 << mrdrvbits) - 1) << (32 - mrdrvbits)); return 0; } |