lm_pf_allocate_vf_igu_sbs
u8_t lm_pf_allocate_vf_igu_sbs(struct _lm_device_t *pdev, struct _lm_vf_info_t *vf_info, u8_t num_of_igu_sbs);
num_of_vf_avaiable_chains = lm_pf_allocate_vf_igu_sbs(pdev, vf_info, num_rxqs);