diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2012-02-09 18:10:06 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-02-26 01:43:37 -0800 |
| commit | a5bbe892da9441835cb6fece26d9bbd95fc820be (patch) | |
| tree | 2642ee58996918ae4a09be9d82d97a6516eb215b /drivers/infiniband | |
| parent | 4ba6b8eaa9d67d03fb653cb8a13afca3236d4d70 (diff) | |
| download | linux-a5bbe892da9441835cb6fece26d9bbd95fc820be.tar.gz linux-a5bbe892da9441835cb6fece26d9bbd95fc820be.tar.bz2 linux-a5bbe892da9441835cb6fece26d9bbd95fc820be.zip | |
mlx4: Enforce device max FMR maps in FMR alloc
ConnectX devices have a limit on the number of mappings that can be
done on an FMR before having to call sync_tpt. The current
mlx4_ib driver reports the limit correctly in max_map_per_fmr in
.query_device(), but mlx4_core doesn't check it when actually
allocating FMRs.
Add a max_fmr_maps field to struct mlx4_caps and enforce this maximum
value on FMR allocations.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 7b445df6a667..e152837b75a5 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -163,7 +163,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * props->max_mcast_grp; - props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1; + props->max_map_per_fmr = dev->dev->caps.max_fmr_maps; out: kfree(in_mad); |