Exemple #1
0
int
sfxge_ev_init(struct sfxge_softc *sc)
{
	struct sysctl_ctx_list *sysctl_ctx = device_get_sysctl_ctx(sc->dev);
	struct sysctl_oid *sysctl_tree = device_get_sysctl_tree(sc->dev);
	struct sfxge_intr *intr;
	int index;
	int rc;

	intr = &sc->intr;

	sc->evq_count = intr->n_alloc;

	KASSERT(intr->state == SFXGE_INTR_INITIALIZED,
	    ("intr->state != SFXGE_INTR_INITIALIZED"));

	/* Set default interrupt moderation; add a sysctl to
	 * read and change it.
	 */
	sc->ev_moderation = SFXGE_MODERATION;
	SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
			OID_AUTO, "int_mod", CTLTYPE_UINT|CTLFLAG_RW,
			sc, 0, sfxge_int_mod_handler, "IU",
			"sfxge interrupt moderation (us)");

	/*
	 * Initialize the event queue(s) - one per interrupt.
	 */
	for (index = 0; index < sc->evq_count; index++) {
		if ((rc = sfxge_ev_qinit(sc, index)) != 0)
			goto fail;
	}

#if EFSYS_OPT_QSTATS
	sfxge_ev_stat_init(sc);
#endif

	return (0);

fail:
	while (--index >= 0)
		sfxge_ev_qfini(sc, index);

	sc->evq_count = 0;
	return (rc);
}
Exemple #2
0
void
sfxge_ev_fini(struct sfxge_softc *sc)
{
	struct sfxge_intr *intr;
	int index;

	intr = &sc->intr;

	KASSERT(intr->state == SFXGE_INTR_INITIALIZED,
	    ("intr->state != SFXGE_INTR_INITIALIZED"));

	sc->ev_moderation = 0;

	/* Tear down the event queue(s). */
	index = intr->n_alloc;
	while (--index >= 0)
		sfxge_ev_qfini(sc, index);
}