node12:~# ibv_devinfo 
hca_id:	mlx4_0
	fw_ver:				2.3.000
	node_guid:			0002:c903:0000:c86c
	sys_image_guid:			0002:c903:0000:c86f
	vendor_id:			0x02c9
	vendor_part_id:			25418
	hw_ver:				0xA0
	board_id:			MT_04A0120002
	phys_port_cnt:			2
		port:	1
			state:			PORT_DOWN (1)
			max_mtu:		4096 (5)
			active_mtu:		4096 (5)
			sm_lid:			0
			port_lid:		0
			port_lmc:		0x00

		port:	2
			state:			PORT_ACTIVE (4)
			max_mtu:		4096 (5)
			active_mtu:		2048 (4)
			sm_lid:			1
			port_lid:		28
			port_lmc:		0x00

node12:~# dpkg -S bv_devinfo 
libibverbs: /usr/bin/ibv_devinfo
libibverbs: /usr/share/man/man1/ibv_devinfo.1.gz
node12:~# dpkg -L libibverbs
/.
/usr
/usr/bin
/usr/bin/ibv_devices
/usr/bin/ibv_devinfo
/usr/bin/ibv_asyncwatch
/usr/bin/ibv_rc_pingpong
/usr/bin/ibv_uc_pingpong
/usr/bin/ibv_ud_pingpong
/usr/bin/ibv_srq_pingpong
/usr/sbin
/usr/lib
/usr/lib/libibverbs.so.1.0.0
/usr/lib/libibverbs.la
/usr/lib/libibverbs.a
/usr/include
/usr/include/infiniband
/usr/include/infiniband/arch.h
/usr/include/infiniband/driver.h
/usr/include/infiniband/kern-abi.h
/usr/include/infiniband/opcode.h
/usr/include/infiniband/verbs.h
/usr/include/infiniband/sa-kern-abi.h
/usr/include/infiniband/sa.h
/usr/include/infiniband/marshall.h
/usr/share
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/ibv_asyncwatch.1.gz
/usr/share/man/man1/ibv_devices.1.gz
/usr/share/man/man1/ibv_devinfo.1.gz
/usr/share/man/man1/ibv_rc_pingpong.1.gz
/usr/share/man/man1/ibv_uc_pingpong.1.gz
/usr/share/man/man1/ibv_ud_pingpong.1.gz
/usr/share/man/man1/ibv_srq_pingpong.1.gz
/usr/share/man/man3
/usr/share/man/man3/ibv_rate_to_mult.3.gz
/usr/share/man/man3/ibv_reg_mr.3.gz
/usr/share/man/man3/ibv_req_notify_cq.3.gz
/usr/share/man/man3/ibv_resize_cq.3.gz
/usr/share/man/man3/ibv_alloc_pd.3.gz
/usr/share/man/man3/ibv_attach_mcast.3.gz
/usr/share/man/man3/ibv_create_ah.3.gz
/usr/share/man/man3/ibv_create_ah_from_wc.3.gz
/usr/share/man/man3/ibv_create_comp_channel.3.gz
/usr/share/man/man3/ibv_create_cq.3.gz
/usr/share/man/man3/ibv_create_qp.3.gz
/usr/share/man/man3/ibv_create_srq.3.gz
/usr/share/man/man3/ibv_fork_init.3.gz
/usr/share/man/man3/ibv_get_async_event.3.gz
/usr/share/man/man3/ibv_get_cq_event.3.gz
/usr/share/man/man3/ibv_get_device_guid.3.gz
/usr/share/man/man3/ibv_get_device_list.3.gz
/usr/share/man/man3/ibv_get_device_name.3.gz
/usr/share/man/man3/ibv_modify_qp.3.gz
/usr/share/man/man3/ibv_modify_srq.3.gz
/usr/share/man/man3/ibv_open_device.3.gz
/usr/share/man/man3/ibv_poll_cq.3.gz
/usr/share/man/man3/ibv_post_recv.3.gz
/usr/share/man/man3/ibv_post_send.3.gz
/usr/share/man/man3/ibv_post_srq_recv.3.gz
/usr/share/man/man3/ibv_query_device.3.gz
/usr/share/man/man3/ibv_query_gid.3.gz
/usr/share/man/man3/ibv_query_pkey.3.gz
/usr/share/man/man3/ibv_query_port.3.gz
/usr/share/man/man3/ibv_query_qp.3.gz
/usr/share/man/man3/ibv_query_srq.3.gz
/usr/share/doc
/usr/share/doc/libibverbs
/usr/share/doc/libibverbs/README.Debian
/usr/share/doc/libibverbs/copyright
/usr/share/doc/libibverbs/changelog.Debian.gz
/usr/share/doc/libibverbs/changelog.gz
/usr/share/doc/libibverbs/README.gz
/usr/lib/libibverbs.so
/usr/lib/libibverbs.so.1
/usr/share/man/man3/ibv_ack_cq_events.3.gz
/usr/share/man/man3/ibv_destroy_srq.3.gz
/usr/share/man/man3/ibv_detach_mcast.3.gz
/usr/share/man/man3/ibv_dealloc_pd.3.gz
/usr/share/man/man3/mult_to_ibv_rate.3.gz
/usr/share/man/man3/ibv_destroy_cq.3.gz
/usr/share/man/man3/ibv_ack_async_event.3.gz
/usr/share/man/man3/ibv_destroy_ah.3.gz
/usr/share/man/man3/ibv_destroy_qp.3.gz
/usr/share/man/man3/ibv_dereg_mr.3.gz
/usr/share/man/man3/ibv_init_ah_from_wc.3.gz
/usr/share/man/man3/ibv_free_device_list.3.gz
/usr/share/man/man3/ibv_close_device.3.gz
/usr/share/man/man3/ibv_destroy_comp_channel.3.gz