static void
pci_vtnet_reset(void *vsc)
{
struct pci_vtnet_softc *sc = vsc;
DPRINTF(("vtnet: device reset requested !\n"));
sc->resetting = 1;
/*
* Wait for the transmit and receive threads to finish their
* processing.
*/
pci_vtnet_txwait(sc);
pci_vtnet_rxwait(sc);
sc->vsc_rx_ready = 0;
sc->rx_merge = 1;
sc->rx_vhdrlen = sizeof(struct virtio_net_rxhdr);
/* now reset rings, MSI-X vectors, and negotiated capabilities */
vi_reset_dev(&sc->vsc_vs);
sc->resetting = 0;
}
static void
pci_vtblk_reset(void *vsc)
{
struct pci_vtblk_softc *sc = vsc;
DPRINTF(("vtblk: device reset requested !\n"));
vi_reset_dev(&sc->vbsc_vs);
}
/*
* Initialize MSI-X vector capabilities if we're to use MSI-X,
* or MSI capabilities if not.
*
* We assume we want one MSI-X vector per queue, here, plus one
* for the config vec.
*/
int
vi_intr_init(struct virtio_softc *vs, int barnum, int use_msix)
{
int nvec;
if (use_msix) {
vs->vs_flags |= VIRTIO_USE_MSIX;
vi_reset_dev(vs); /* set all vectors to NO_VECTOR */
nvec = vs->vs_vc->vc_nvq + 1;
if (pci_emul_add_msixcap(vs->vs_pi, nvec, barnum))
return (1);
} else
vs->vs_flags &= ~VIRTIO_USE_MSIX;
/* Only 1 MSI vector for bhyve */
pci_emul_add_msicap(vs->vs_pi, 1);
return (0);
}