EFX_RXQ_SIZE
if ((esmp == NULL) || (EFSYS_MEM_SIZE(esmp) < EFX_RXQ_SIZE(ndescs))) {
#define EFX_RXQ_NBUFS(_ndescs) (EFX_RXQ_SIZE(_ndescs) / EFX_BUF_SIZE)
if ((rc = sfxge_dma_alloc(sc, EFX_RXQ_SIZE(sc->rxq_entries), esmp)) != 0)