Bugs can be anywhere: application / Driver / HW ...

Can you try to use server in x86 and client in PPC64 and then server in
PPC64 and client in x86?

Which OFED version do you use?
Can you send the output of ibv_devinfo?

Dotan


I tried the combination ppc64-x86 and x86-ppc64.
The result was a hang on the client side on poll (see code above) on both cases.
Could endianess be playing a role here? This is the first time I try
to put different architectures to communicate.

I have ofed 1.2.5.5

ibv_devinfo (x86 machine used for the ppc64-x86 communication)

hca_id: mthca0
        fw_ver:                         1.2.0
        node_guid:                      0002:c902:0021:b820
        sys_image_guid:                 0002:c902:0021:b823
        vendor_id:                      0x02c9
        vendor_part_id:                 25204
        hw_ver:                         0xA0
        board_id:                       MT_03B0110001
        phys_port_cnt:                  1
                port:   1
                        state:                  PORT_ACTIVE (4)
                        max_mtu:                2048 (4)
                        active_mtu:             2048 (4)
                        sm_lid:                 142
                        port_lid:               134
                        port_lmc:               0x01

ibv_devinfo (ppc64)

hca_id: mlx4_0
        fw_ver:                         2.3.000
        node_guid:                      0002:c903:0000:9334
        sys_image_guid:                 0002:c903:0000:9337
        vendor_id:                      0x02c9
        vendor_part_id:                 25418
        hw_ver:                         0xA0
        board_id:                       IBM08A0000001
        phys_port_cnt:                  2
                port:   1
                        state:                  PORT_ACTIVE (4)
                        max_mtu:                2048 (4)
                        active_mtu:             2048 (4)
                        sm_lid:                 142
                        port_lid:               68
                        port_lmc:               0x01

                port:   2
                        state:                  PORT_DOWN (1)
                        max_mtu:                2048 (4)
                        active_mtu:             2048 (4)
                        sm_lid:                 0
                        port_lid:               0
                        port_lmc:               0x00


Cheers,
It seems that you didn't check the same HCA in each arch.

Can you try to use the mthca device in PPC64 and check the results?

(Anyway, i would have suggest you to upgrade the OFED package that you are using)


Dotan
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