Date: Sun, 15 Mar 2015 21:23:45 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r280110 - head/sys/dev/wpi Message-ID: <201503152123.t2FLNjsr090199@svn.freebsd.org>
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Author: adrian Date: Sun Mar 15 21:23:45 2015 New Revision: 280110 URL: https://svnweb.freebsd.org/changeset/base/280110 Log: Don't use sc->qfullmsk in wpi_start(). PR: kern/197143 Submitted by: Andriy Voskoboinyk <s3erios@gmail.com> Modified: head/sys/dev/wpi/if_wpi.c Modified: head/sys/dev/wpi/if_wpi.c ============================================================================== --- head/sys/dev/wpi/if_wpi.c Sun Mar 15 21:22:03 2015 (r280109) +++ head/sys/dev/wpi/if_wpi.c Sun Mar 15 21:23:45 2015 (r280110) @@ -2411,6 +2411,7 @@ end: WPI_UNLOCK(sc); static int wpi_cmd2(struct wpi_softc *sc, struct wpi_buf *buf) { + struct ifnet *ifp = sc->sc_ifp; struct ieee80211_frame *wh; struct wpi_tx_cmd *cmd; struct wpi_tx_data *data; @@ -2522,9 +2523,14 @@ wpi_cmd2(struct wpi_softc *sc, struct wp if (ring->qid < WPI_CMD_QUEUE_NUM) { /* Mark TX ring as full if we reach a certain threshold. */ - if (++ring->queued > WPI_TX_RING_HIMARK) + if (++ring->queued > WPI_TX_RING_HIMARK) { sc->qfullmsk |= 1 << ring->qid; + IF_LOCK(&ifp->if_snd); + ifp->if_drv_flags |= IFF_DRV_OACTIVE; + IF_UNLOCK(&ifp->if_snd); + } + callout_reset(&sc->tx_timeout, 5*hz, wpi_tx_timeout, sc); } @@ -2873,24 +2879,18 @@ wpi_start(struct ifnet *ifp) struct ieee80211_node *ni; struct mbuf *m; + WPI_LOCK(sc); DPRINTF(sc, WPI_DEBUG_XMIT, "%s: called\n", __func__); - IF_LOCK(&ifp->if_snd); - if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || - (ifp->if_drv_flags & IFF_DRV_OACTIVE)) { - IF_UNLOCK(&ifp->if_snd); - return; - } - IF_UNLOCK(&ifp->if_snd); - - WPI_LOCK(sc); for (;;) { - if (sc->qfullmsk != 0) { - IF_LOCK(&ifp->if_snd); - ifp->if_drv_flags |= IFF_DRV_OACTIVE; + IF_LOCK(&ifp->if_snd); + if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || + (ifp->if_drv_flags & IFF_DRV_OACTIVE)) { IF_UNLOCK(&ifp->if_snd); break; } + IF_UNLOCK(&ifp->if_snd); + IFQ_DRV_DEQUEUE(&ifp->if_snd, m); if (m == NULL) break; @@ -2902,9 +2902,9 @@ wpi_start(struct ifnet *ifp) if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); } } - WPI_UNLOCK(sc); DPRINTF(sc, WPI_DEBUG_XMIT, "%s: done\n", __func__); + WPI_UNLOCK(sc); } static void
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