bxe_slowpath
if (bxe_dma_alloc(sc, sizeof(struct bxe_slowpath),
sc->sp = (struct bxe_slowpath *)sc->sp_dma.vaddr;
sizeof(struct bxe_slowpath));
struct bxe_slowpath *sp;
(sc->sp_dma.paddr + offsetof(struct bxe_slowpath, var))