On 4/9/2013 7:12 AM, Vasiliy Tolstov wrote: > Hello. I have some servers, with mellanox ConnectX-3 and have some questions: > Why max_mtu differs with active_mtu?
What does peer port say for max MTU ? > How can i set active mtu? SM sets active MTU to min of peer ports max MTUs. > Why ibstatus says that i have only 10 Gb/s ? Because the link negotiated at 10 Gb/s. > All cables support 40 Gb/s. Do ports support 40 Gb/s also ? What do peer ports say for supported and enabled link speeds ? -- Hal > Thanks for any help. > > Linux xen28 3.8.6-1-xen #1 SMP Fri Apr 5 18:48:02 UTC 2013 (713918b) > x86_64 x86_64 x86_64 GNU/Linux > > Infiniband device 'mlx4_0' port 1 status: > default gid: fe80:0000:0000:0000:0025:90ff:ff17:9b25 > base lid: 0x34 > sm lid: 0x4 > state: 4: ACTIVE > phys state: 5: LinkUp > rate: 10 Gb/sec (4X) > link_layer: InfiniBand > > > 06:00.0 Network controller: Mellanox Technologies MT27500 Family [ConnectX-3] > hca_id: mlx4_0 > transport: InfiniBand (0) > fw_ver: 2.10.700 > node_guid: 0025:90ff:ff17:9b24 > sys_image_guid: 0025:90ff:ff17:9b27 > vendor_id: 0x02c9 > vendor_part_id: 4099 > hw_ver: 0x0 > board_id: SM_2181000001000 > phys_port_cnt: 1 > port: 1 > state: PORT_ACTIVE (4) > max_mtu: 4096 (5) > active_mtu: 2048 (4) > sm_lid: 4 > port_lid: 52 > port_lmc: 0x00 > link_layer: IB > > > -- > Vasiliy Tolstov, > e-mail: v.tols...@selfip.ru > jabber: v...@selfip.ru > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
