Date: Sun, 18 Sep 2011 09:05:43 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r225647 - user/adrian/if_ath_tx/sys/dev/ath Message-ID: <201109180905.p8I95hbY023130@svn.freebsd.org>
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Author: adrian Date: Sun Sep 18 09:05:42 2011 New Revision: 225647 URL: http://svn.freebsd.org/changeset/base/225647 Log: Enable printf's where a BAR frame _would_ be TXed. I'm doing this so I (and testers) can keep track of when BAR's should be TXed. This way if traffic pauses are seen that coincide with this BAR message, we can (hopefully!) assume that a BAR frame exchange would've flushed things correctly. This also will let me implement/debug the "correct" sending of BAR frames - ie, sending them when the TID has been emptied rather than on each failed software retry attempt. That could get slightly spammy. There's a few places where BAR frames should likely be TX'ed, specifically when a TID flush is done (and the node isn't being deleted.) But that'll come in the next phase of work. 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 Sun Sep 18 08:26:57 2011 (r225646) +++ user/adrian/if_ath_tx/sys/dev/ath/if_ath_tx.c Sun Sep 18 09:05:42 2011 (r225647) @@ -2694,9 +2694,10 @@ ath_tx_aggr_retry_unaggr(struct ath_soft * This'll end up going into net80211 and back out * again, via ic->ic_raw_xmit(). */ + device_printf(sc->sc_dev, + "%s: TID %d: send BAR; seq %d\n", + __func__, tid, ni->ni_txseqs[tid]); #if 0 - DPRINTF(sc, ATH_DEBUG_SW_TX_CTRL, "%s: TID %d: send BAR\n", - __func__, tid); if (ieee80211_send_bar(ni, tap, ni->ni_txseqs[tid]) == 0) { /* * Pause the TID if this was successful. @@ -2844,11 +2845,15 @@ ath_tx_comp_aggr_error(struct ath_softc bf = bf_next; } -#if 0 /* * send bar if we dropped any frames */ if (drops) { + device_printf(sc->sc_dev, + "%s: TID %d: send BAR; seq %d\n", + __func__, tid->tid, + ni->ni_txseqs[tid->tid]); +#if 0 if (ieee80211_send_bar(ni, tap, ni->ni_txseqs[tid->tid]) == 0) { /* * Pause the TID if this was successful. @@ -2862,8 +2867,8 @@ ath_tx_comp_aggr_error(struct ath_softc "%s: TID %d: BAR TX failed\n", __func__, tid->tid); } - } #endif + } /* Prepend all frames to the beginning of the queue */ while ((bf = TAILQ_LAST(&bf_q, ath_bufhead_s)) != NULL) {
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