Date: Tue, 7 Feb 2012 18:05:11 +0000 (UTC) From: Bernhard Schmidt <bschmidt@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r231143 - stable/9/sys/dev/iwn Message-ID: <201202071805.q17I5Btw001030@svn.freebsd.org>
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Author: bschmidt Date: Tue Feb 7 18:05:10 2012 New Revision: 231143 URL: http://svn.freebsd.org/changeset/base/231143 Log: MFC r230620: On state changes from RUN to anything else the AGGR sessions are cleared/dropped leading to qid2tap[n] being NULL as there no longer is a tap. Now, if there have been lots of frames queued the firmware processes and returns those after the tap is gone. Modified: stable/9/sys/dev/iwn/if_iwn.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/dev/iwn/if_iwn.c ============================================================================== --- stable/9/sys/dev/iwn/if_iwn.c Tue Feb 7 17:57:59 2012 (r231142) +++ stable/9/sys/dev/iwn/if_iwn.c Tue Feb 7 18:05:10 2012 (r231143) @@ -2813,11 +2813,13 @@ iwn_ampdu_tx_done(struct iwn_softc *sc, bitmap |= 1ULL << bit; } tap = sc->qid2tap[qid]; - tid = WME_AC_TO_TID(tap->txa_ac); - wn = (void *)tap->txa_ni; - wn->agg[tid].bitmap = bitmap; - wn->agg[tid].startidx = start; - wn->agg[tid].nframes = nframes; + if (tap != NULL) { + tid = WME_AC_TO_TID(tap->txa_ac); + wn = (void *)tap->txa_ni; + wn->agg[tid].bitmap = bitmap; + wn->agg[tid].startidx = start; + wn->agg[tid].nframes = nframes; + } seqno = le32toh(*(status + nframes)) & 0xfff; for (lastidx = (seqno & 0xff); ring->read != lastidx;) {
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