Author: manu Date: Sat Nov 18 20:55:37 2017 New Revision: 325981 URL: https://svnweb.freebsd.org/changeset/base/325981
Log: if_awg: replace multiple calls to if_setdrvflagbits with one call in awg_txintr Small optimization Submitted by: Guy Yur <[email protected]> Differential Revision: https://reviews.freebsd.org/D13033 Modified: head/sys/arm/allwinner/if_awg.c Modified: head/sys/arm/allwinner/if_awg.c ============================================================================== --- head/sys/arm/allwinner/if_awg.c Sat Nov 18 20:50:31 2017 (r325980) +++ head/sys/arm/allwinner/if_awg.c Sat Nov 18 20:55:37 2017 (r325981) @@ -916,7 +916,7 @@ awg_txintr(struct awg_softc *sc) struct emac_desc *desc; uint32_t status, size; if_t ifp; - int i; + int i, prog; AWG_ASSERT_LOCKED(sc); @@ -924,6 +924,8 @@ awg_txintr(struct awg_softc *sc) BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); ifp = sc->ifp; + + prog = 0; for (i = sc->tx.next; sc->tx.queued > 0; i = TX_NEXT(i)) { desc = &sc->tx.desc_ring[i]; status = le32toh(desc->status); @@ -936,11 +938,14 @@ awg_txintr(struct awg_softc *sc) else if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); } + prog++; awg_clean_txbuf(sc, i); - if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE); } - sc->tx.next = i; + if (prog > 0) { + sc->tx.next = i; + if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE); + } } static void _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "[email protected]"
