IRO_USTORM_VF_PF_CHANNEL_READY_GTT
(IRO[IRO_USTORM_VF_PF_CHANNEL_READY_GTT].base \
+ ((vf_id) * IRO[IRO_USTORM_VF_PF_CHANNEL_READY_GTT].m1))
(IRO[IRO_USTORM_VF_PF_CHANNEL_READY_GTT].size)