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Differential D7182 Diff 20404 head/sys/dev/virtio/console/virtio_console.c

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head/sys/dev/virtio/console/virtio_console.c

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static int vtcon_ctrl_event_populate(struct vtcon_softc *); static int vtcon_ctrl_event_populate(struct vtcon_softc *);
static void vtcon_ctrl_event_drain(struct vtcon_softc *); static void vtcon_ctrl_event_drain(struct vtcon_softc *);
static int vtcon_ctrl_init(struct vtcon_softc *); static int vtcon_ctrl_init(struct vtcon_softc *);
static void vtcon_ctrl_deinit(struct vtcon_softc *); static void vtcon_ctrl_deinit(struct vtcon_softc *);
static void vtcon_ctrl_port_add_event(struct vtcon_softc *, int); static void vtcon_ctrl_port_add_event(struct vtcon_softc *, int);
static void vtcon_ctrl_port_remove_event(struct vtcon_softc *, int); static void vtcon_ctrl_port_remove_event(struct vtcon_softc *, int);
static void vtcon_ctrl_port_console_event(struct vtcon_softc *, int); static void vtcon_ctrl_port_console_event(struct vtcon_softc *, int);
static void vtcon_ctrl_port_open_event(struct vtcon_softc *, int); static void vtcon_ctrl_port_open_event(struct vtcon_softc *, int);
static void vtcon_ctrl_port_name_event(struct vtcon_softc *, int,
const char *, size_t);
static void vtcon_ctrl_process_event(struct vtcon_softc *, static void vtcon_ctrl_process_event(struct vtcon_softc *,
struct virtio_console_control *); struct virtio_console_control *, void *, size_t);
static void vtcon_ctrl_task_cb(void *, int); static void vtcon_ctrl_task_cb(void *, int);
static void vtcon_ctrl_event_intr(void *); static void vtcon_ctrl_event_intr(void *);
static void vtcon_ctrl_poll(struct vtcon_softc *, static void vtcon_ctrl_poll(struct vtcon_softc *,
struct virtio_console_control *control); struct virtio_console_control *control);
static void vtcon_ctrl_send_control(struct vtcon_softc *, uint32_t, static void vtcon_ctrl_send_control(struct vtcon_softc *, uint32_t,
uint16_t, uint16_t); uint16_t, uint16_t);
static int vtcon_port_enqueue_buf(struct vtcon_port *, void *, size_t); static int vtcon_port_enqueue_buf(struct vtcon_port *, void *, size_t);
▲ Show 20 Lines • Show All 417 Lines • ▼ Show 20 Lines
} }
static int static int
vtcon_ctrl_event_create(struct vtcon_softc *sc) vtcon_ctrl_event_create(struct vtcon_softc *sc)
{ {
struct virtio_console_control *control; struct virtio_console_control *control;
int error; int error;
control = malloc(sizeof(struct virtio_console_control), M_DEVBUF, control = malloc(
M_ZERO | M_NOWAIT); sizeof(struct virtio_console_control) + VTCON_BULK_BUFSZ,
M_DEVBUF, M_ZERO | M_NOWAIT);
if (control == NULL) if (control == NULL)
return (ENOMEM); return (ENOMEM);
error = vtcon_ctrl_event_enqueue(sc, control); error = vtcon_ctrl_event_enqueue(sc, control);
if (error) if (error)
free(control, M_DEVBUF); free(control, M_DEVBUF);
return (error); return (error);
▲ Show 20 Lines • Show All 167 Lines • ▼ Show 20 Linesvtcon_ctrl_port_open_event(struct vtcon_softc *sc, int id)
VTCON_PORT_LOCK(port); VTCON_PORT_LOCK(port);
VTCON_UNLOCK(sc); VTCON_UNLOCK(sc);
vtcon_port_enable_intr(port); vtcon_port_enable_intr(port);
VTCON_PORT_UNLOCK(port); VTCON_PORT_UNLOCK(port);
} }
static void static void
vtcon_ctrl_port_name_event(struct vtcon_softc *sc, int id, const char *name,
size_t len)
{
device_t dev;
struct vtcon_softc_port *scport;
struct vtcon_port *port;
dev = sc->vtcon_dev;
scport = &sc->vtcon_ports[id];
port = scport->vcsp_port;
if (port == NULL) {
device_printf(dev, "%s: name port %d, but does not exist\n",
__func__, id);
return;
}
tty_makealias(port->vtcport_tty, "vtcon/%*s", (int)len, name);
}
static void
vtcon_ctrl_process_event(struct vtcon_softc *sc, vtcon_ctrl_process_event(struct vtcon_softc *sc,
struct virtio_console_control *control) struct virtio_console_control *control, void *payload, size_t plen)
{ {
device_t dev; device_t dev;
int id; int id;
dev = sc->vtcon_dev; dev = sc->vtcon_dev;
id = control->id; id = control->id;
if (id < 0 || id >= sc->vtcon_max_ports) { if (id < 0 || id >= sc->vtcon_max_ports) {
Show All 17 Linesvtcon_ctrl_process_event(struct vtcon_softc *sc,
case VIRTIO_CONSOLE_RESIZE: case VIRTIO_CONSOLE_RESIZE:
break; break;
case VIRTIO_CONSOLE_PORT_OPEN: case VIRTIO_CONSOLE_PORT_OPEN:
vtcon_ctrl_port_open_event(sc, id); vtcon_ctrl_port_open_event(sc, id);
break; break;
case VIRTIO_CONSOLE_PORT_NAME: case VIRTIO_CONSOLE_PORT_NAME:
if (payload != NULL && plen > 0)
vtcon_ctrl_port_name_event(sc, id,
(const char *)payload, plen);
break; break;
} }
} }
static void static void
vtcon_ctrl_task_cb(void *xsc, int pending) vtcon_ctrl_task_cb(void *xsc, int pending)
{ {
struct vtcon_softc *sc; struct vtcon_softc *sc;
struct virtqueue *vq; struct virtqueue *vq;
struct virtio_console_control *control; struct virtio_console_control *control;
int detached; int detached;
uint32_t len;
size_t plen;
void *payload;
sc = xsc; sc = xsc;
vq = sc->vtcon_ctrl_rxvq; vq = sc->vtcon_ctrl_rxvq;
VTCON_LOCK(sc); VTCON_LOCK(sc);
while ((detached = (sc->vtcon_flags & VTCON_FLAG_DETACHED)) == 0) { while ((detached = (sc->vtcon_flags & VTCON_FLAG_DETACHED)) == 0) {
control = virtqueue_dequeue(vq, NULL); control = virtqueue_dequeue(vq, &len);
payload = NULL;
plen = 0;
if (control == NULL) if (control == NULL)
break; break;
if (len > sizeof(control)) {
payload = (void *)(control + 1);
plen = len - sizeof(control);
}
VTCON_UNLOCK(sc); VTCON_UNLOCK(sc);
vtcon_ctrl_process_event(sc, control); vtcon_ctrl_process_event(sc, control, payload, plen);
VTCON_LOCK(sc); VTCON_LOCK(sc);
vtcon_ctrl_event_requeue(sc, control); vtcon_ctrl_event_requeue(sc, control);
} }
if (!detached) { if (!detached) {
virtqueue_notify(vq); virtqueue_notify(vq);
if (virtqueue_enable_intr(vq) != 0) if (virtqueue_enable_intr(vq) != 0)
taskqueue_enqueue(taskqueue_thread, taskqueue_enqueue(taskqueue_thread,
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