Comment 2 for bug 1770974

= Verification =
== Server Side ==
ubuntu@d06-1:~$ cat /proc/version
Linux version 4.15.0-24-generic (buildd@bos02-arm64-008) (gcc version 7.3.0 (Ubuntu/Linaro 7.3.0-16ubuntu3)) #26-Ubuntu SMP Wed Jun 13 08:44:37 UTC 2018
ubuntu@d06-1:~$ ib_write_bw -n 5 -d hns_2

************************************
* Waiting for client to connect... *
************************************
hr_qp->port_num= 0x1
---------------------------------------------------------------------------------------
                    RDMA_Write BW Test
 Dual-port : OFF Device : hns_2
 Number of qps : 1 Transport type : IB
 Connection type : RC Using SRQ : OFF
 CQ Moderation : 5
 Mtu : 1024[B]
 Link type : Ethernet
 GID index : 2
 Max inline data : 0[B]
 rdma_cm QPs : OFF
 Data ex. method : Ethernet
---------------------------------------------------------------------------------------
 local address: LID 0000 QPN 0x000c PSN 0x11b76 RKey 0x000200 VAddr 0x00ffff9d943000
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:10:228:68:53
 remote address: LID 0000 QPN 0x000c PSN 0xca0ca0 RKey 0x000200 VAddr 0x00ffff96905000
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:10:228:68:74
---------------------------------------------------------------------------------------
 #bytes #iterations BW peak[MB/sec] BW average[MB/sec] MsgRate[Mpps]
 65536 5 108.06 108.06 0.001729
---------------------------------------------------------------------------------------

== Client Side ==ubuntu@d06-2:~$ ib_write_bw -n 5 -d hns_2 10.228.68.53
hr_qp->port_num= 0x1
---------------------------------------------------------------------------------------
                    RDMA_Write BW Test
 Dual-port : OFF Device : hns_2
 Number of qps : 1 Transport type : IB
 Connection type : RC Using SRQ : OFF
 TX depth : 5
 CQ Moderation : 5
 Mtu : 1024[B]
 Link type : Ethernet
 GID index : 2
 Max inline data : 0[B]
 rdma_cm QPs : OFF
 Data ex. method : Ethernet
---------------------------------------------------------------------------------------
 local address: LID 0000 QPN 0x000c PSN 0xca0ca0 RKey 0x000200 VAddr 0x00ffff96905000
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:10:228:68:74
 remote address: LID 0000 QPN 0x000c PSN 0x11b76 RKey 0x000200 VAddr 0x00ffff9d943000
 GID: 00:00:00:00:00:00:00:00:00:00:255:255:10:228:68:53
---------------------------------------------------------------------------------------
 #bytes #iterations BW peak[MB/sec] BW average[MB/sec] MsgRate[Mpps]
 65536 5 108.06 108.06 0.001729
---------------------------------------------------------------------------------------