diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/if_sis.c | 30 |
1 files changed, 10 insertions, 20 deletions
diff --git a/sys/dev/pci/if_sis.c b/sys/dev/pci/if_sis.c index 276caf4de0c..021862bb9d6 100644 --- a/sys/dev/pci/if_sis.c +++ b/sys/dev/pci/if_sis.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_sis.c,v 1.55 2005/10/17 05:02:50 brad Exp $ */ +/* $OpenBSD: if_sis.c,v 1.56 2005/10/18 00:12:09 brad Exp $ */ /* * Copyright (c) 1997, 1998, 1999 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. @@ -1425,22 +1425,18 @@ void sis_rxeoc(sc) void sis_txeof(sc) struct sis_softc *sc; { - struct sis_desc *cur_tx = NULL; struct ifnet *ifp; u_int32_t idx; ifp = &sc->arpcom.ac_if; - /* Clear the timeout timer. */ - ifp->if_timer = 0; - /* * Go through our tx list and free mbufs for those * frames that have been transmitted. */ - idx = sc->sis_cdata.sis_tx_cons; - while (idx != sc->sis_cdata.sis_tx_prod) { - cur_tx = &sc->sis_ldata->sis_tx_list[idx]; + for (idx = sc->sis_cdata.sis_tx_cons; sc->sis_cdata.sis_tx_cnt > 0; + sc->sis_cdata.sis_tx_cnt--, SIS_INC(idx, SIS_TX_LIST_CNT)) { + struct sis_desc *cur_tx = &sc->sis_ldata->sis_tx_list[idx]; bus_dmamap_sync(sc->sc_dmat, sc->sc_listmap, ((caddr_t)cur_tx - sc->sc_listkva), @@ -1450,11 +1446,8 @@ void sis_txeof(sc) if (SIS_OWNDESC(cur_tx)) break; - if (cur_tx->sis_ctl & SIS_CMDSTS_MORE) { - sc->sis_cdata.sis_tx_cnt--; - SIS_INC(idx, SIS_TX_LIST_CNT); + if (cur_tx->sis_ctl & SIS_CMDSTS_MORE) continue; - } if (!(cur_tx->sis_ctl & SIS_CMDSTS_PKT_OK)) { ifp->if_oerrors++; @@ -1479,18 +1472,15 @@ void sis_txeof(sc) m_freem(cur_tx->sis_mbuf); cur_tx->sis_mbuf = NULL; } - - sc->sis_cdata.sis_tx_cnt--; - SIS_INC(idx, SIS_TX_LIST_CNT); - ifp->if_timer = 0; } - sc->sis_cdata.sis_tx_cons = idx; - - if (cur_tx != NULL) + if (idx != sc->sis_cdata.sis_tx_cons) { + /* we freed up some buffers */ + sc->sis_cdata.sis_tx_cons = idx; ifp->if_flags &= ~IFF_OACTIVE; + } - return; + ifp->if_timer = (sc->sis_cdata.sis_tx_cnt == 0) ? 0 : 5; } void sis_tick(xsc) |