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);
}
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);
}