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-rw-r--r--drivers/infiniband/hw/mthca/mthca_provider.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index a2eae8a30167..8f89ba7c9147 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -115,6 +115,16 @@ static int mthca_query_device(struct ib_device *ibdev,
115 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; 115 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM;
116 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 116 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
117 props->max_mcast_grp; 117 props->max_mcast_grp;
118 /*
119 * If Sinai memory key optimization is being used, then only
120 * the 8-bit key portion will change. For other HCAs, the
121 * unused index bits will also be used for FMR remapping.
122 */
123 if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
124 props->max_map_per_fmr = 255;
125 else
126 props->max_map_per_fmr =
127 (1 << (32 - long_log2(mdev->limits.num_mpts))) - 1;
118 128
119 err = 0; 129 err = 0;
120 out: 130 out: