Migrate the per-frame code out from ath_rx_proc() to ath_rx_pkt().
This will (eventually) be used by the EDMA RX path used by the AR93xx and later NICs.
This commit is contained in:
adrian
parent
b8d578077a
commit
e1654c32a7
@ -437,6 +437,327 @@ ath_rx_tasklet(void *arg, int npending)
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ath_rx_proc(sc, 1);
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}
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static int
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ath_rx_pkt(struct ath_softc *sc, struct ath_rx_status *rs, HAL_STATUS status,
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uint64_t tsf, int nf, struct ath_buf *bf)
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{
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struct ath_hal *ah = sc->sc_ah;
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struct mbuf *m = bf->bf_m;
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uint64_t rstamp;
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int len, type;
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struct ifnet *ifp = sc->sc_ifp;
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struct ieee80211com *ic = ifp->if_l2com;
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struct ieee80211_node *ni;
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int is_good = 0;
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/*
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* Calculate the correct 64 bit TSF given
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* the TSF64 register value and rs_tstamp.
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*/
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rstamp = ath_extend_tsf(sc, rs->rs_tstamp, tsf);
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/* These aren't specifically errors */
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#ifdef AH_SUPPORT_AR5416
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if (rs->rs_flags & HAL_RX_GI)
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sc->sc_stats.ast_rx_halfgi++;
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if (rs->rs_flags & HAL_RX_2040)
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sc->sc_stats.ast_rx_2040++;
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if (rs->rs_flags & HAL_RX_DELIM_CRC_PRE)
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sc->sc_stats.ast_rx_pre_crc_err++;
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if (rs->rs_flags & HAL_RX_DELIM_CRC_POST)
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sc->sc_stats.ast_rx_post_crc_err++;
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if (rs->rs_flags & HAL_RX_DECRYPT_BUSY)
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sc->sc_stats.ast_rx_decrypt_busy_err++;
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if (rs->rs_flags & HAL_RX_HI_RX_CHAIN)
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sc->sc_stats.ast_rx_hi_rx_chain++;
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#endif /* AH_SUPPORT_AR5416 */
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if (rs->rs_status != 0) {
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if (rs->rs_status & HAL_RXERR_CRC)
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sc->sc_stats.ast_rx_crcerr++;
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if (rs->rs_status & HAL_RXERR_FIFO)
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sc->sc_stats.ast_rx_fifoerr++;
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if (rs->rs_status & HAL_RXERR_PHY) {
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sc->sc_stats.ast_rx_phyerr++;
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/* Process DFS radar events */
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if ((rs->rs_phyerr == HAL_PHYERR_RADAR) ||
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(rs->rs_phyerr == HAL_PHYERR_FALSE_RADAR_EXT)) {
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/* Since we're touching the frame data, sync it */
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bus_dmamap_sync(sc->sc_dmat,
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bf->bf_dmamap,
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BUS_DMASYNC_POSTREAD);
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/* Now pass it to the radar processing code */
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ath_dfs_process_phy_err(sc, mtod(m, char *), rstamp, rs);
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}
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/* Be suitably paranoid about receiving phy errors out of the stats array bounds */
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if (rs->rs_phyerr < 64)
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sc->sc_stats.ast_rx_phy[rs->rs_phyerr]++;
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goto rx_error; /* NB: don't count in ierrors */
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}
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if (rs->rs_status & HAL_RXERR_DECRYPT) {
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/*
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* Decrypt error. If the error occurred
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* because there was no hardware key, then
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* let the frame through so the upper layers
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* can process it. This is necessary for 5210
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* parts which have no way to setup a ``clear''
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* key cache entry.
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*
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* XXX do key cache faulting
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*/
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if (rs->rs_keyix == HAL_RXKEYIX_INVALID)
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goto rx_accept;
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sc->sc_stats.ast_rx_badcrypt++;
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}
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if (rs->rs_status & HAL_RXERR_MIC) {
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sc->sc_stats.ast_rx_badmic++;
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/*
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* Do minimal work required to hand off
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* the 802.11 header for notification.
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*/
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/* XXX frag's and qos frames */
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len = rs->rs_datalen;
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if (len >= sizeof (struct ieee80211_frame)) {
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bus_dmamap_sync(sc->sc_dmat,
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bf->bf_dmamap,
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BUS_DMASYNC_POSTREAD);
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ath_handle_micerror(ic,
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mtod(m, struct ieee80211_frame *),
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sc->sc_splitmic ?
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rs->rs_keyix-32 : rs->rs_keyix);
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}
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}
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ifp->if_ierrors++;
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rx_error:
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/*
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* Cleanup any pending partial frame.
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*/
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if (sc->sc_rxpending != NULL) {
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m_freem(sc->sc_rxpending);
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sc->sc_rxpending = NULL;
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}
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/*
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* When a tap is present pass error frames
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* that have been requested. By default we
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* pass decrypt+mic errors but others may be
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* interesting (e.g. crc).
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*/
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if (ieee80211_radiotap_active(ic) &&
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(rs->rs_status & sc->sc_monpass)) {
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bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap,
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BUS_DMASYNC_POSTREAD);
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/* NB: bpf needs the mbuf length setup */
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len = rs->rs_datalen;
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m->m_pkthdr.len = m->m_len = len;
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bf->bf_m = NULL;
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ath_rx_tap(ifp, m, rs, rstamp, nf);
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ieee80211_radiotap_rx_all(ic, m);
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m_freem(m);
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}
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/* XXX pass MIC errors up for s/w reclaculation */
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goto rx_next;
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}
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rx_accept:
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/*
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* Sync and unmap the frame. At this point we're
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* committed to passing the mbuf somewhere so clear
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* bf_m; this means a new mbuf must be allocated
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* when the rx descriptor is setup again to receive
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* another frame.
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*/
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bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_POSTREAD);
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bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
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bf->bf_m = NULL;
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len = rs->rs_datalen;
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m->m_len = len;
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if (rs->rs_more) {
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/*
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* Frame spans multiple descriptors; save
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* it for the next completed descriptor, it
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* will be used to construct a jumbogram.
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*/
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if (sc->sc_rxpending != NULL) {
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/* NB: max frame size is currently 2 clusters */
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sc->sc_stats.ast_rx_toobig++;
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m_freem(sc->sc_rxpending);
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}
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m->m_pkthdr.rcvif = ifp;
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m->m_pkthdr.len = len;
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sc->sc_rxpending = m;
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goto rx_next;
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} else if (sc->sc_rxpending != NULL) {
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/*
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* This is the second part of a jumbogram,
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* chain it to the first mbuf, adjust the
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* frame length, and clear the rxpending state.
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*/
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sc->sc_rxpending->m_next = m;
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sc->sc_rxpending->m_pkthdr.len += len;
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m = sc->sc_rxpending;
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sc->sc_rxpending = NULL;
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} else {
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/*
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* Normal single-descriptor receive; setup
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* the rcvif and packet length.
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*/
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m->m_pkthdr.rcvif = ifp;
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m->m_pkthdr.len = len;
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}
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/*
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* Validate rs->rs_antenna.
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*
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* Some users w/ AR9285 NICs have reported crashes
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* here because rs_antenna field is bogusly large.
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* Let's enforce the maximum antenna limit of 8
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* (and it shouldn't be hard coded, but that's a
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* separate problem) and if there's an issue, print
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* out an error and adjust rs_antenna to something
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* sensible.
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*
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* This code should be removed once the actual
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* root cause of the issue has been identified.
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* For example, it may be that the rs_antenna
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* field is only valid for the lsat frame of
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* an aggregate and it just happens that it is
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* "mostly" right. (This is a general statement -
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* the majority of the statistics are only valid
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* for the last frame in an aggregate.
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*/
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if (rs->rs_antenna > 7) {
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device_printf(sc->sc_dev, "%s: rs_antenna > 7 (%d)\n",
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__func__, rs->rs_antenna);
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#ifdef ATH_DEBUG
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ath_printrxbuf(sc, bf, 0, status == HAL_OK);
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#endif /* ATH_DEBUG */
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rs->rs_antenna = 0; /* XXX better than nothing */
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}
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ifp->if_ipackets++;
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sc->sc_stats.ast_ant_rx[rs->rs_antenna]++;
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/*
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* Populate the rx status block. When there are bpf
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* listeners we do the additional work to provide
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* complete status. Otherwise we fill in only the
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* material required by ieee80211_input. Note that
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* noise setting is filled in above.
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*/
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if (ieee80211_radiotap_active(ic))
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ath_rx_tap(ifp, m, rs, rstamp, nf);
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/*
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* From this point on we assume the frame is at least
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* as large as ieee80211_frame_min; verify that.
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*/
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if (len < IEEE80211_MIN_LEN) {
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if (!ieee80211_radiotap_active(ic)) {
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DPRINTF(sc, ATH_DEBUG_RECV,
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"%s: short packet %d\n", __func__, len);
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sc->sc_stats.ast_rx_tooshort++;
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} else {
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/* NB: in particular this captures ack's */
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ieee80211_radiotap_rx_all(ic, m);
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}
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m_freem(m);
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goto rx_next;
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}
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if (IFF_DUMPPKTS(sc, ATH_DEBUG_RECV)) {
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const HAL_RATE_TABLE *rt = sc->sc_currates;
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uint8_t rix = rt->rateCodeToIndex[rs->rs_rate];
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ieee80211_dump_pkt(ic, mtod(m, caddr_t), len,
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sc->sc_hwmap[rix].ieeerate, rs->rs_rssi);
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}
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m_adj(m, -IEEE80211_CRC_LEN);
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/*
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* Locate the node for sender, track state, and then
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* pass the (referenced) node up to the 802.11 layer
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* for its use.
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*/
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ni = ieee80211_find_rxnode_withkey(ic,
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mtod(m, const struct ieee80211_frame_min *),
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rs->rs_keyix == HAL_RXKEYIX_INVALID ?
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IEEE80211_KEYIX_NONE : rs->rs_keyix);
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sc->sc_lastrs = rs;
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#ifdef AH_SUPPORT_AR5416
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if (rs->rs_isaggr)
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sc->sc_stats.ast_rx_agg++;
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#endif /* AH_SUPPORT_AR5416 */
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if (ni != NULL) {
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/*
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* Only punt packets for ampdu reorder processing for
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* 11n nodes; net80211 enforces that M_AMPDU is only
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* set for 11n nodes.
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*/
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if (ni->ni_flags & IEEE80211_NODE_HT)
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m->m_flags |= M_AMPDU;
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/*
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* Sending station is known, dispatch directly.
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*/
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type = ieee80211_input(ni, m, rs->rs_rssi, nf);
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ieee80211_free_node(ni);
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/*
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* Arrange to update the last rx timestamp only for
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* frames from our ap when operating in station mode.
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* This assumes the rx key is always setup when
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* associated.
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*/
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if (ic->ic_opmode == IEEE80211_M_STA &&
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rs->rs_keyix != HAL_RXKEYIX_INVALID)
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is_good = 1;
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} else {
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type = ieee80211_input_all(ic, m, rs->rs_rssi, nf);
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}
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/*
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* Track rx rssi and do any rx antenna management.
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*/
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ATH_RSSI_LPF(sc->sc_halstats.ns_avgrssi, rs->rs_rssi);
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if (sc->sc_diversity) {
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/*
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* When using fast diversity, change the default rx
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* antenna if diversity chooses the other antenna 3
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* times in a row.
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*/
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if (sc->sc_defant != rs->rs_antenna) {
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if (++sc->sc_rxotherant >= 3)
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ath_setdefantenna(sc, rs->rs_antenna);
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} else
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sc->sc_rxotherant = 0;
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}
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/* Newer school diversity - kite specific for now */
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/* XXX perhaps migrate the normal diversity code to this? */
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if ((ah)->ah_rxAntCombDiversity)
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(*(ah)->ah_rxAntCombDiversity)(ah, rs, ticks, hz);
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if (sc->sc_softled) {
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/*
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* Blink for any data frame. Otherwise do a
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* heartbeat-style blink when idle. The latter
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* is mainly for station mode where we depend on
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* periodic beacon frames to trigger the poll event.
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*/
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if (type == IEEE80211_FC0_TYPE_DATA) {
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const HAL_RATE_TABLE *rt = sc->sc_currates;
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ath_led_event(sc,
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rt->rateCodeToIndex[rs->rs_rate]);
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} else if (ticks - sc->sc_ledevent >= sc->sc_ledidle)
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ath_led_event(sc, 0);
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}
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rx_next:
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return (is_good);
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}
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void
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ath_rx_proc(struct ath_softc *sc, int resched)
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{
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@ -450,11 +771,10 @@ ath_rx_proc(struct ath_softc *sc, int resched)
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struct ath_desc *ds;
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struct ath_rx_status *rs;
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struct mbuf *m;
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struct ieee80211_node *ni;
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int len, type, ngood;
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int ngood;
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HAL_STATUS status;
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int16_t nf;
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u_int64_t tsf, rstamp;
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u_int64_t tsf;
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int npkts = 0;
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/* XXX we must not hold the ATH_LOCK here */
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@ -492,7 +812,7 @@ ath_rx_proc(struct ath_softc *sc, int resched)
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/* XXX make debug msg */
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if_printf(ifp, "%s: no mbuf!\n", __func__);
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TAILQ_REMOVE(&sc->sc_rxbuf, bf, bf_list);
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goto rx_next;
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goto rx_proc_next;
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}
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ds = bf->bf_desc;
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if (ds->ds_link == bf->bf_daddr) {
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@ -526,311 +846,11 @@ ath_rx_proc(struct ath_softc *sc, int resched)
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npkts++;
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/*
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* Calculate the correct 64 bit TSF given
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* the TSF64 register value and rs_tstamp.
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* Process a single frame.
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*/
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rstamp = ath_extend_tsf(sc, rs->rs_tstamp, tsf);
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/* These aren't specifically errors */
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#ifdef AH_SUPPORT_AR5416
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if (rs->rs_flags & HAL_RX_GI)
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sc->sc_stats.ast_rx_halfgi++;
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if (rs->rs_flags & HAL_RX_2040)
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sc->sc_stats.ast_rx_2040++;
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if (rs->rs_flags & HAL_RX_DELIM_CRC_PRE)
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sc->sc_stats.ast_rx_pre_crc_err++;
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if (rs->rs_flags & HAL_RX_DELIM_CRC_POST)
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sc->sc_stats.ast_rx_post_crc_err++;
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if (rs->rs_flags & HAL_RX_DECRYPT_BUSY)
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sc->sc_stats.ast_rx_decrypt_busy_err++;
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if (rs->rs_flags & HAL_RX_HI_RX_CHAIN)
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sc->sc_stats.ast_rx_hi_rx_chain++;
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#endif /* AH_SUPPORT_AR5416 */
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if (rs->rs_status != 0) {
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if (rs->rs_status & HAL_RXERR_CRC)
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sc->sc_stats.ast_rx_crcerr++;
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if (rs->rs_status & HAL_RXERR_FIFO)
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sc->sc_stats.ast_rx_fifoerr++;
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if (rs->rs_status & HAL_RXERR_PHY) {
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sc->sc_stats.ast_rx_phyerr++;
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/* Process DFS radar events */
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if ((rs->rs_phyerr == HAL_PHYERR_RADAR) ||
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(rs->rs_phyerr == HAL_PHYERR_FALSE_RADAR_EXT)) {
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/* Since we're touching the frame data, sync it */
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bus_dmamap_sync(sc->sc_dmat,
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bf->bf_dmamap,
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BUS_DMASYNC_POSTREAD);
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/* Now pass it to the radar processing code */
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ath_dfs_process_phy_err(sc, mtod(m, char *), rstamp, rs);
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}
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/* Be suitably paranoid about receiving phy errors out of the stats array bounds */
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if (rs->rs_phyerr < 64)
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sc->sc_stats.ast_rx_phy[rs->rs_phyerr]++;
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goto rx_error; /* NB: don't count in ierrors */
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}
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if (rs->rs_status & HAL_RXERR_DECRYPT) {
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/*
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* Decrypt error. If the error occurred
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* because there was no hardware key, then
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* let the frame through so the upper layers
|
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* can process it. This is necessary for 5210
|
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* parts which have no way to setup a ``clear''
|
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* key cache entry.
|
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*
|
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* XXX do key cache faulting
|
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*/
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if (rs->rs_keyix == HAL_RXKEYIX_INVALID)
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goto rx_accept;
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sc->sc_stats.ast_rx_badcrypt++;
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}
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if (rs->rs_status & HAL_RXERR_MIC) {
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sc->sc_stats.ast_rx_badmic++;
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/*
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* Do minimal work required to hand off
|
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* the 802.11 header for notification.
|
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*/
|
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/* XXX frag's and qos frames */
|
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len = rs->rs_datalen;
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if (len >= sizeof (struct ieee80211_frame)) {
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bus_dmamap_sync(sc->sc_dmat,
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bf->bf_dmamap,
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BUS_DMASYNC_POSTREAD);
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ath_handle_micerror(ic,
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mtod(m, struct ieee80211_frame *),
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sc->sc_splitmic ?
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rs->rs_keyix-32 : rs->rs_keyix);
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}
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}
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ifp->if_ierrors++;
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rx_error:
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/*
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||||
* Cleanup any pending partial frame.
|
||||
*/
|
||||
if (sc->sc_rxpending != NULL) {
|
||||
m_freem(sc->sc_rxpending);
|
||||
sc->sc_rxpending = NULL;
|
||||
}
|
||||
/*
|
||||
* When a tap is present pass error frames
|
||||
* that have been requested. By default we
|
||||
* pass decrypt+mic errors but others may be
|
||||
* interesting (e.g. crc).
|
||||
*/
|
||||
if (ieee80211_radiotap_active(ic) &&
|
||||
(rs->rs_status & sc->sc_monpass)) {
|
||||
bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap,
|
||||
BUS_DMASYNC_POSTREAD);
|
||||
/* NB: bpf needs the mbuf length setup */
|
||||
len = rs->rs_datalen;
|
||||
m->m_pkthdr.len = m->m_len = len;
|
||||
bf->bf_m = NULL;
|
||||
ath_rx_tap(ifp, m, rs, rstamp, nf);
|
||||
ieee80211_radiotap_rx_all(ic, m);
|
||||
m_freem(m);
|
||||
}
|
||||
/* XXX pass MIC errors up for s/w reclaculation */
|
||||
goto rx_next;
|
||||
}
|
||||
rx_accept:
|
||||
/*
|
||||
* Sync and unmap the frame. At this point we're
|
||||
* committed to passing the mbuf somewhere so clear
|
||||
* bf_m; this means a new mbuf must be allocated
|
||||
* when the rx descriptor is setup again to receive
|
||||
* another frame.
|
||||
*/
|
||||
bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap,
|
||||
BUS_DMASYNC_POSTREAD);
|
||||
bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
|
||||
bf->bf_m = NULL;
|
||||
|
||||
len = rs->rs_datalen;
|
||||
m->m_len = len;
|
||||
|
||||
if (rs->rs_more) {
|
||||
/*
|
||||
* Frame spans multiple descriptors; save
|
||||
* it for the next completed descriptor, it
|
||||
* will be used to construct a jumbogram.
|
||||
*/
|
||||
if (sc->sc_rxpending != NULL) {
|
||||
/* NB: max frame size is currently 2 clusters */
|
||||
sc->sc_stats.ast_rx_toobig++;
|
||||
m_freem(sc->sc_rxpending);
|
||||
}
|
||||
m->m_pkthdr.rcvif = ifp;
|
||||
m->m_pkthdr.len = len;
|
||||
sc->sc_rxpending = m;
|
||||
goto rx_next;
|
||||
} else if (sc->sc_rxpending != NULL) {
|
||||
/*
|
||||
* This is the second part of a jumbogram,
|
||||
* chain it to the first mbuf, adjust the
|
||||
* frame length, and clear the rxpending state.
|
||||
*/
|
||||
sc->sc_rxpending->m_next = m;
|
||||
sc->sc_rxpending->m_pkthdr.len += len;
|
||||
m = sc->sc_rxpending;
|
||||
sc->sc_rxpending = NULL;
|
||||
} else {
|
||||
/*
|
||||
* Normal single-descriptor receive; setup
|
||||
* the rcvif and packet length.
|
||||
*/
|
||||
m->m_pkthdr.rcvif = ifp;
|
||||
m->m_pkthdr.len = len;
|
||||
}
|
||||
|
||||
/*
|
||||
* Validate rs->rs_antenna.
|
||||
*
|
||||
* Some users w/ AR9285 NICs have reported crashes
|
||||
* here because rs_antenna field is bogusly large.
|
||||
* Let's enforce the maximum antenna limit of 8
|
||||
* (and it shouldn't be hard coded, but that's a
|
||||
* separate problem) and if there's an issue, print
|
||||
* out an error and adjust rs_antenna to something
|
||||
* sensible.
|
||||
*
|
||||
* This code should be removed once the actual
|
||||
* root cause of the issue has been identified.
|
||||
* For example, it may be that the rs_antenna
|
||||
* field is only valid for the lsat frame of
|
||||
* an aggregate and it just happens that it is
|
||||
* "mostly" right. (This is a general statement -
|
||||
* the majority of the statistics are only valid
|
||||
* for the last frame in an aggregate.
|
||||
*/
|
||||
if (rs->rs_antenna > 7) {
|
||||
device_printf(sc->sc_dev, "%s: rs_antenna > 7 (%d)\n",
|
||||
__func__, rs->rs_antenna);
|
||||
#ifdef ATH_DEBUG
|
||||
ath_printrxbuf(sc, bf, 0, status == HAL_OK);
|
||||
#endif /* ATH_DEBUG */
|
||||
rs->rs_antenna = 0; /* XXX better than nothing */
|
||||
}
|
||||
|
||||
ifp->if_ipackets++;
|
||||
sc->sc_stats.ast_ant_rx[rs->rs_antenna]++;
|
||||
|
||||
/*
|
||||
* Populate the rx status block. When there are bpf
|
||||
* listeners we do the additional work to provide
|
||||
* complete status. Otherwise we fill in only the
|
||||
* material required by ieee80211_input. Note that
|
||||
* noise setting is filled in above.
|
||||
*/
|
||||
if (ieee80211_radiotap_active(ic))
|
||||
ath_rx_tap(ifp, m, rs, rstamp, nf);
|
||||
|
||||
/*
|
||||
* From this point on we assume the frame is at least
|
||||
* as large as ieee80211_frame_min; verify that.
|
||||
*/
|
||||
if (len < IEEE80211_MIN_LEN) {
|
||||
if (!ieee80211_radiotap_active(ic)) {
|
||||
DPRINTF(sc, ATH_DEBUG_RECV,
|
||||
"%s: short packet %d\n", __func__, len);
|
||||
sc->sc_stats.ast_rx_tooshort++;
|
||||
} else {
|
||||
/* NB: in particular this captures ack's */
|
||||
ieee80211_radiotap_rx_all(ic, m);
|
||||
}
|
||||
m_freem(m);
|
||||
goto rx_next;
|
||||
}
|
||||
|
||||
if (IFF_DUMPPKTS(sc, ATH_DEBUG_RECV)) {
|
||||
const HAL_RATE_TABLE *rt = sc->sc_currates;
|
||||
uint8_t rix = rt->rateCodeToIndex[rs->rs_rate];
|
||||
|
||||
ieee80211_dump_pkt(ic, mtod(m, caddr_t), len,
|
||||
sc->sc_hwmap[rix].ieeerate, rs->rs_rssi);
|
||||
}
|
||||
|
||||
m_adj(m, -IEEE80211_CRC_LEN);
|
||||
|
||||
/*
|
||||
* Locate the node for sender, track state, and then
|
||||
* pass the (referenced) node up to the 802.11 layer
|
||||
* for its use.
|
||||
*/
|
||||
ni = ieee80211_find_rxnode_withkey(ic,
|
||||
mtod(m, const struct ieee80211_frame_min *),
|
||||
rs->rs_keyix == HAL_RXKEYIX_INVALID ?
|
||||
IEEE80211_KEYIX_NONE : rs->rs_keyix);
|
||||
sc->sc_lastrs = rs;
|
||||
|
||||
#ifdef AH_SUPPORT_AR5416
|
||||
if (rs->rs_isaggr)
|
||||
sc->sc_stats.ast_rx_agg++;
|
||||
#endif /* AH_SUPPORT_AR5416 */
|
||||
|
||||
if (ni != NULL) {
|
||||
/*
|
||||
* Only punt packets for ampdu reorder processing for
|
||||
* 11n nodes; net80211 enforces that M_AMPDU is only
|
||||
* set for 11n nodes.
|
||||
*/
|
||||
if (ni->ni_flags & IEEE80211_NODE_HT)
|
||||
m->m_flags |= M_AMPDU;
|
||||
|
||||
/*
|
||||
* Sending station is known, dispatch directly.
|
||||
*/
|
||||
type = ieee80211_input(ni, m, rs->rs_rssi, nf);
|
||||
ieee80211_free_node(ni);
|
||||
/*
|
||||
* Arrange to update the last rx timestamp only for
|
||||
* frames from our ap when operating in station mode.
|
||||
* This assumes the rx key is always setup when
|
||||
* associated.
|
||||
*/
|
||||
if (ic->ic_opmode == IEEE80211_M_STA &&
|
||||
rs->rs_keyix != HAL_RXKEYIX_INVALID)
|
||||
ngood++;
|
||||
} else {
|
||||
type = ieee80211_input_all(ic, m, rs->rs_rssi, nf);
|
||||
}
|
||||
/*
|
||||
* Track rx rssi and do any rx antenna management.
|
||||
*/
|
||||
ATH_RSSI_LPF(sc->sc_halstats.ns_avgrssi, rs->rs_rssi);
|
||||
if (sc->sc_diversity) {
|
||||
/*
|
||||
* When using fast diversity, change the default rx
|
||||
* antenna if diversity chooses the other antenna 3
|
||||
* times in a row.
|
||||
*/
|
||||
if (sc->sc_defant != rs->rs_antenna) {
|
||||
if (++sc->sc_rxotherant >= 3)
|
||||
ath_setdefantenna(sc, rs->rs_antenna);
|
||||
} else
|
||||
sc->sc_rxotherant = 0;
|
||||
}
|
||||
|
||||
/* Newer school diversity - kite specific for now */
|
||||
/* XXX perhaps migrate the normal diversity code to this? */
|
||||
if ((ah)->ah_rxAntCombDiversity)
|
||||
(*(ah)->ah_rxAntCombDiversity)(ah, rs, ticks, hz);
|
||||
|
||||
if (sc->sc_softled) {
|
||||
/*
|
||||
* Blink for any data frame. Otherwise do a
|
||||
* heartbeat-style blink when idle. The latter
|
||||
* is mainly for station mode where we depend on
|
||||
* periodic beacon frames to trigger the poll event.
|
||||
*/
|
||||
if (type == IEEE80211_FC0_TYPE_DATA) {
|
||||
const HAL_RATE_TABLE *rt = sc->sc_currates;
|
||||
ath_led_event(sc,
|
||||
rt->rateCodeToIndex[rs->rs_rate]);
|
||||
} else if (ticks - sc->sc_ledevent >= sc->sc_ledidle)
|
||||
ath_led_event(sc, 0);
|
||||
}
|
||||
rx_next:
|
||||
if (ath_rx_pkt(sc, rs, status, tsf, nf, bf))
|
||||
ngood++;
|
||||
rx_proc_next:
|
||||
TAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
|
||||
} while (ath_rxbuf_init(sc, bf) == 0);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user