1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h
index 294dd27b601e..7c001b97b23f 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma.h
@@ -423,5 +423,17 @@ static inline int is_cqe_wr_imm(struct ocrdma_cqe *cqe)
                 OCRDMA_CQE_WRITE_IMM) ? 1 : 0;
 }
 
+static inline int ocrdma_resolve_dmac(struct ocrdma_dev *dev,
+                struct ib_ah_attr *ah_attr, u8 *mac_addr)
+{
+        struct in6_addr in6;
+
+        memcpy(&in6, ah_attr->grh.dgid.raw, sizeof(in6));
+        if (rdma_is_multicast_addr(&in6))
+                rdma_get_mcast_mac(&in6, mac_addr);
+        else
+                memcpy(mac_addr, ah_attr->dmac, ETH_ALEN);
+        return 0;
+}
 
 #endif