diff options
| -rw-r--r-- | sys/powerpc/pseries/phyp_llan.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sys/powerpc/pseries/phyp_llan.c b/sys/powerpc/pseries/phyp_llan.c index 0b25f39..26dbcc0 100644 --- a/sys/powerpc/pseries/phyp_llan.c +++ b/sys/powerpc/pseries/phyp_llan.c @@ -273,6 +273,9 @@ llan_init(void *xsc) sc->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; mtx_unlock(&sc->io_lock); + + /* Check for pending receives scheduled before interrupt enable */ + llan_intr(sc); } static int @@ -335,6 +338,7 @@ llan_intr(void *xsc) struct mbuf *m; mtx_lock(&sc->io_lock); +restart: phyp_hcall(H_VIO_SIGNAL, sc->unit, 0); while ((sc->rx_buf[sc->rx_dma_slot].control >> 7) == sc->rx_valid_val) { @@ -369,6 +373,15 @@ llan_intr(void *xsc) } phyp_hcall(H_VIO_SIGNAL, sc->unit, 1); + + /* + * H_VIO_SIGNAL enables interrupts for future packets only. + * Make sure none were queued between the end of the loop and the + * enable interrupts call. + */ + if ((sc->rx_buf[sc->rx_dma_slot].control >> 7) == sc->rx_valid_val) + goto restart; + mtx_unlock(&sc->io_lock); } |
