2 files changed, 16 insertions, 0 deletions

diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h
index 1a570886cc03..06f578cde75b 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.h
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.h
@@ -140,6 +140,15 @@ struct iser_hdr {
         __be64  read_va;
 } __attribute__((packed));
 
+
+#define ISER_ZBVA_NOT_SUPPORTED         0x80
+#define ISER_SEND_W_INV_NOT_SUPPORTED   0x40
+
+struct iser_cm_hdr {
+        u8      flags;
+        u8      rsvd[3];
+} __packed;
+
 /* Constant PDU lengths calculations */
 #define ISER_HEADERS_LEN  (sizeof(struct iser_hdr) + sizeof(struct iscsi_hdr))
 
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index 13838ad3ce76..5278916c3103 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -499,6 +499,7 @@ static int iser_route_handler(struct rdma_cm_id *cma_id)
 {
         struct rdma_conn_param conn_param;
         int    ret;
+        struct iser_cm_hdr req_hdr;
 
         ret = iser_create_ib_conn_res((struct iser_conn *)cma_id->context);
         if (ret)
@@ -510,6 +511,12 @@ static int iser_route_handler(struct rdma_cm_id *cma_id)
         conn_param.retry_count         = 7;
         conn_param.rnr_retry_count     = 6;
 
+        memset(&req_hdr, 0, sizeof(req_hdr));
+        req_hdr.flags = (ISER_ZBVA_NOT_SUPPORTED |
+                        ISER_SEND_W_INV_NOT_SUPPORTED);
+        conn_param.private_data         = (void *)&req_hdr;
+        conn_param.private_data_len     = sizeof(struct iser_cm_hdr);
+
         ret = rdma_connect(cma_id, &conn_param);
         if (ret) {
                 iser_err("failure connecting: %d\n", ret);