Date: Wed, 7 Sep 2011 07:24:46 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r225432 - user/adrian/if_ath_tx/sys/dev/ath Message-ID: <201109070724.p877OkkZ020593@svn.freebsd.org>
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Author: adrian Date: Wed Sep 7 07:24:46 2011 New Revision: 225432 URL: http://svn.freebsd.org/changeset/base/225432 Log: Correct the retry bit handling during software TX retransmission. * only update the bit if retries == 0; * if the retry bit is set, resync the descriptor Modified: user/adrian/if_ath_tx/sys/dev/ath/if_ath_tx.c Modified: user/adrian/if_ath_tx/sys/dev/ath/if_ath_tx.c ============================================================================== --- user/adrian/if_ath_tx/sys/dev/ath/if_ath_tx.c Wed Sep 7 03:00:58 2011 (r225431) +++ user/adrian/if_ath_tx/sys/dev/ath/if_ath_tx.c Wed Sep 7 07:24:46 2011 (r225432) @@ -2533,11 +2533,16 @@ ath_tx_set_retry(struct ath_softc *sc, s { struct ieee80211_frame *wh; + wh = mtod(bf->bf_m, struct ieee80211_frame *); + /* Only update/resync if needed */ + if (bf->bf_state.bfs_isretried == 0) { + wh->i_fc[1] |= IEEE80211_FC1_RETRY; + bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, + BUS_DMASYNC_PREWRITE); + } sc->sc_stats.ast_tx_swretries++; bf->bf_state.bfs_isretried = 1; bf->bf_state.bfs_retries ++; - wh = mtod(bf->bf_m, struct ieee80211_frame *); - wh->i_fc[1] |= IEEE80211_FC1_RETRY; } static struct ath_buf *
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