/* common functions for the nm_register() callbacks of both kind of
* monitors.
*/
static int
netmap_monitor_reg_common(struct netmap_adapter *na, int onoff, int zmon)
{
struct netmap_monitor_adapter *mna =
(struct netmap_monitor_adapter *)na;
struct netmap_priv_d *priv = &mna->priv;
struct netmap_adapter *pna = priv->np_na;
struct netmap_kring *kring, *mkring;
int i;
enum txrx t;
ND("%p: onoff %d", na, onoff);
if (onoff) {
if (pna == NULL) {
/* parent left netmap mode, fatal */
D("%s: internal error", na->name);
return ENXIO;
}
for_rx_tx(t) {
if (mna->flags & nm_txrx2flag(t)) {
for (i = priv->np_qfirst[t]; i < priv->np_qlast[t]; i++) {
kring = &NMR(pna, t)[i];
mkring = &na->rx_rings[i];
if (nm_kring_pending_on(mkring)) {
netmap_monitor_add(mkring, kring, zmon);
mkring->nr_mode = NKR_NETMAP_ON;
}
}
}
}
na->na_flags |= NAF_NETMAP_ON;
} else {
if (na->active_fds == 0)
/* common functions for the nm_register() callbacks of both kind of
* monitors.
*/
static int
netmap_monitor_reg_common(struct netmap_adapter *na, int onoff, int zmon)
{
struct netmap_monitor_adapter *mna =
(struct netmap_monitor_adapter *)na;
struct netmap_priv_d *priv = &mna->priv;
struct netmap_adapter *pna = priv->np_na;
struct netmap_kring *kring, *mkring;
int i;
enum txrx t, s;
ND("%p: onoff %d", na, onoff);
if (onoff) {
if (pna == NULL) {
/* parent left netmap mode, fatal */
D("%s: internal error", na->name);
return ENXIO;
}
for_rx_tx(t) {
for (i = 0; i < nma_get_nrings(na, t) + 1; i++) {
mkring = &NMR(na, t)[i];
if (!nm_kring_pending_on(mkring))
continue;
mkring->nr_mode = NKR_NETMAP_ON;
if (t == NR_TX)
continue;
for_rx_tx(s) {
if (i > nma_get_nrings(pna, s))
continue;
if (mna->flags & nm_txrx2flag(s)) {
kring = &NMR(pna, s)[i];
netmap_monitor_add(mkring, kring, zmon);
}
}
}
}
na->na_flags |= NAF_NETMAP_ON;
} else {
if (na->active_fds == 0)
