[ewg] Soft-RoCE on NetEffect NE020 10Gb RNIC

Tanin fanqielee at gmail.com
Wed May 4 13:52:16 PDT 2011


Dear all,

I have installed the OFED-1.5.2-rxe on our linux host, which has three
network interfaces, Broadcom Corporation NetXtreme II BCM5709 Gigabit
Ethernet NIC, Mellanox Technologies MT26478 [ConnectX EN 40GigE, PCIe 2.0
5GT/s] and NetEffect NE020 10Gb Accelerated Ethernet Adapter (iWARP RNIC).
The Soft-RoCE can work on the first two cards, but when I applied the
Soft-RoCE to the Neteffect card and use "ibv_devinfo" to view the RDMA
device, I got  following errors on some of the hosts in our cluster, and the
whole OFED stack doesnot work.

*[root at netqos14 ~]# rxe_cfg status*
*Name  Link  Driver  Speed  MTU       IPv4_addr              S-RoCE  RMTU*
*eth0     yes    bnx2                 1500      198.124.220.155*
*eth1      no     bnx2                 1500*
*eth2      no     bnx2                 1500*
*eth3      no     bnx2                 1500*
*eth4     yes    iw_nes              1500     198.124.220.207      rxe0*
*rxe eth_proto_id: 0x8915*
*
*
*
*
*[root at netqos14 ~]# ibv_devinfo*
*hca_id: mlx4_0*
*        transport:                      InfiniBand (0)*
*        fw_ver:                         2.7.626*
*        node_guid:                      0002:c903:000b:f306*
*        sys_image_guid:                 0002:c903:000b:f309*
*        vendor_id:                      0x02c9*
*        vendor_part_id:                 26428*
*        hw_ver:                         0xB0*
*        board_id:                       MT_0D90110009*
*        phys_port_cnt:                  1*
*                port:   1*
*                        state:                  PORT_ACTIVE (4)*
*                        max_mtu:                2048 (4)*
*                        active_mtu:             2048 (4)*
*                        sm_lid:                 6*
*                        port_lid:               4*
*                        port_lmc:               0x00*
*                        link_layer:             IB*
*
*
*hca_id: nes0*
*        transport:                      iWARP (1)*
*        fw_ver:                         3.16*
*        node_guid:                      0012:5502:f6ac:0000*
*        sys_image_guid:                 0012:5502:f6ac:0000*
*        vendor_id:                      0x1255*
*        vendor_part_id:                 256*
*        hw_ver:                         0x5*
*        board_id:                       NES020 Board ID*
*        phys_port_cnt:                  1*
*                port:   1*
*                        state:                  PORT_ACTIVE (4)*
*                        max_mtu:                4096 (5)*
*                        active_mtu:             1024 (3)*
*                        sm_lid:                 0*
*                        port_lid:               1*
*                        port_lmc:               0x00*
*                        link_layer:             Ethernet*

*libnes: nes_ualloc_context: Invalid kernel driver version detected.
Detected 0,  should be 1*
*libnes: nes_ualloc_context: Failed to allocate context for device.*
*Failed to open device*

However, some hosts in our cluster can make Soft-RoCE work on the iWARP RNIC
with the same configuration. The info is as follows,

[root at netqos13 rftp]# rxe_cfg status
Name  Link  Driver  Speed  MTU   IPv4_addr               S-RoCE  RMTU
eth0     yes   bnx2                 1500   198.124.220.154
eth1      no    bnx2                 1500
eth2      no    bnx2                 1500
eth3      no    bnx2                 1500
eth4     yes   iw_nes             1500   198.124.220.206       rxe0    1024
 (3)
rxe eth_proto_id: 0x8915

[root at netqos13 rftp]# ibv_devinfo
hca_id: mlx4_0
        transport:                      InfiniBand (0)
        fw_ver:                         2.7.626
        node_guid:                      0002:c903:000b:f31e
        sys_image_guid:                 0002:c903:000b:f321
        vendor_id:                      0x02c9
        vendor_part_id:                 26428
        hw_ver:                         0xB0
        board_id:                       MT_0D90110009
        phys_port_cnt:                  1
                port:   1
                        state:                  PORT_ACTIVE (4)
                        max_mtu:                2048 (4)
                        active_mtu:             2048 (4)
                        sm_lid:                 6
                        port_lid:               1
                        port_lmc:               0x00
                        link_layer:             IB

hca_id: nes0
        transport:                      iWARP (1)
        fw_ver:                         3.16
        node_guid:                      0012:5502:f208:0000
        sys_image_guid:                 0012:5502:f208:0000
        vendor_id:                      0x1255
        vendor_part_id:                 256
        hw_ver:                         0x5
        board_id:                       NES020 Board ID
        phys_port_cnt:                  1
                port:   1
                        state:                  PORT_ACTIVE (4)
                        max_mtu:                4096 (5)
                        active_mtu:             1024 (3)
                        sm_lid:                 0
                        port_lid:               1
                        port_lmc:               0x00
                        link_layer:             Ethernet

hca_id: rxe0
        transport:                      InfiniBand (0)
        fw_ver:                         0.0.0
        node_guid:                      0212:55ff:fe02:f208
        sys_image_guid:                 0000:0000:0000:0000
        vendor_id:                      0x0000
        vendor_part_id:                 0
        hw_ver:                         0x0
        phys_port_cnt:                  1
                port:   1
                        state:                  PORT_ACTIVE (4)
                        max_mtu:                4096 (5)
                        active_mtu:             1024 (3)
                        sm_lid:                 0
                        port_lid:               0
                        port_lmc:               0x00
                        link_layer:             Ethernet

The two host are identical.  The system info is as follows,

[root at netqos13 rftp]# uname -a
Linux netqos13 2.6.18-164.11.1.el5_lustre.1.8.3 #1 SMP Fri Apr 9 18:00:39
MDT 2010 x86_64 x86_64 x86_64 GNU/Linux

[root at netqos13 rftp]# ifconfig
eth0      Link encap:Ethernet  HWaddr A4:BA:DB:1E:CC:8D
          inet addr:198.124.220.154  Bcast:198.124.220.63
 Mask:255.255.255.192
          inet6 addr: fe80::a6ba:dbff:fe1e:cc8d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:105558250 errors:0 dropped:0 overruns:0 frame:0
          TX packets:137816731 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:95088704022 (88.5 GiB)  TX bytes:156759141516 (145.9 GiB)
          Interrupt:98 Memory:d2000000-d2012800

eth4      Link encap:Ethernet  HWaddr 00:12:55:02:F2:08
          inet addr:198.124.220.206  Bcast:198.124.220.255
 Mask:255.255.255.192
          inet6 addr: fe80::212:55ff:fe02:f208/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:59487544 errors:0 dropped:0 overruns:0 frame:0
          TX packets:55691374 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:82372790409 (76.7 GiB)  TX bytes:34462883454 (32.0 GiB)
          Interrupt:130

ib0       Link encap:InfiniBand  HWaddr
80:00:00:48:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00
          inet addr:192.168.1.13  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::202:c903:b:f31f/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:65520  Metric:1
          RX packets:4461 errors:0 dropped:0 overruns:0 frame:0
          TX packets:17 errors:0 dropped:9 overruns:0 carrier:0
          collisions:0 txqueuelen:256
          RX bytes:264959 (258.7 KiB)  TX bytes:3267 (3.1 KiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:19040792 errors:0 dropped:0 overruns:0 frame:0
          TX packets:19040792 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:147810608491 (137.6 GiB)  TX bytes:147810608491 (137.6
GiB)

So, my question is why is that Soft-RoCE does not work on some of the
NetEffect iWARP RNIC's, but does work on the other NetEffect iWARP RNIC's?
All iWARP RNIC's are on different hosts of the same cluster, and connected
via a Juniper EX 2500 switch.

Any help will be greatly appreciated.

-- 
Best regards,

-----------------------------------------------------------------------------------------------
Li, Tan
PhD Candidate & Research Assistant,
Electrical Engineering,
Stony Brook University, NY

Personal Web Site: https://sites.google.com/site/homepagelitan/Home

Email: fanqielee at gmail.com
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