[Bug 231859] ipoib datagram mode: unicast packets are received as multicast packets

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231859

--- Comment #4 from Brian Mueller <bmueller at panasas.com> ---
I was OOTO last week.  I will try 11-STABLE this week.

The peer is a RHEL 7.2 node.

[root at pgh-ibquad-1d ~]# modinfo ib_ipoib
filename:      
/lib/modules/3.10.0-327.22.2.el7.x86_64/weak-updates/mlnx-ofa_kernel/drivers/infiniband/ulp/ipoib/ib_ipoib.ko
version:        3.2-2.0.0_25 Feb 2016
license:        Dual BSD/GPL
description:    IP-over-InfiniBand net driver
author:         Roland Dreier
alias:          rtnl-link-ipoib
rhelversion:    7.2
srcversion:     EFF8E020E6E534613C6CEAA
depends:        ib_core,ib_cm,mlx_compat,ib_sa
vermagic:       3.10.0-327.el7.x86_64 SMP mod_unload modversions 
signer:         Mellanox Technologies signing key
sig_key:        61:FE:B0:74:FC:72:92:F9:58:41:93:86:FF:DD:9D:5C:A9:99:E4:03
sig_hashalgo:   sha256
parm:           max_nonsrq_conn_qp:Max number of connected-mode QPs per
interface (applied only if shared receive queue is not available) (default:
128) (2-4096) (int)
parm:           mcast_debug_level:Enable multicast debug tracing if > 0
(default: 0) (int)
parm:           send_queue_size:Number of descriptors in send queue (default =
512) (2-8192) (int)
parm:           recv_queue_size:Number of descriptors in receive queue (default
= 512) (2-8192) (int)
parm:           lro:Enable LRO (Large Receive Offload) (default = 1) (0-1)
(int)
parm:           lro_max_aggr:LRO: Max packets to be aggregated must be power of
2(default = 64) (2-64) (int)
parm:           debug_level:Enable debug tracing if > 0 (default: 0) (0-1)
(int)

GIDS
-----
* RHEL 7.2 client
cat /sys/class/infiniband/mlx4_0/ports/1/gids/0
fe80:0000:0000:0000:0030:48ff:fff4:c6ed
cat /sys/class/infiniband/mlx4_0/ports/1/gids/1
fe80:0000:0000:0000:0000:0000:0000:0000
...
cat /sys/class/infiniband/mlx4_0/ports/1/gids/127
fe80:0000:0000:0000:0000:0000:0000:0000

* FreeBSD 11.2 client
sys.class.infiniband.mlx4_0.ports.1.gids.0:
80:0000:0000:0000:001e:6703:00f2:576f
sys.class.infiniband.mlx4_0.ports.1.gids.1:
fe80:0000:0000:0000:0000:0000:0000:0000
...
sys.class.infiniband.mlx4_0.ports.1.gids.127:
fe80:0000:0000:0000:0000:0000:0000:0000


ibv_devinfo
------------
* RHEL 7.2 client

hca_id: mlx4_0
        transport:                      InfiniBand (0)
        fw_ver:                         2.9.1000
        node_guid:                      0030:48ff:fff4:c6ec
        sys_image_guid:                 0030:48ff:fff4:c6ef
        vendor_id:                      0x02c9
        vendor_part_id:                 26428
        hw_ver:                         0xB0
        board_id:                       SM_2092000001000
        phys_port_cnt:                  1
        Device ports:
                port:   1
                        state:                  PORT_ACTIVE (4)
                        max_mtu:                4096 (5)
                        active_mtu:             4096 (5)
                        sm_lid:                 1
                        port_lid:               15
                        port_lmc:               0x00
                        link_layer:             InfiniBand


* FreeBSD 11.2 client

hca_id: mlx4_0
        transport:                      InfiniBand (0)
        fw_ver:                         2.40.7000
        node_guid:                      001e:6703:00f2:576e
        sys_image_guid:                 001e:6703:00f2:5771
        vendor_id:                      0x02c9
        vendor_part_id:                 4099
        hw_ver:                         0x0
        board_id:                       INCX-3I355920151
        phys_port_cnt:                  1
                port:   1
                        state:                  PORT_ACTIVE (4)
                        max_mtu:                4096 (5)
                        active_mtu:             4096 (5)
                        sm_lid:                 1
                        port_lid:               2
                        port_lmc:               0x00
                        link_layer:             InfiniBand

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