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iwx: correct chain number reporting

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There is no point in assigning the channel index to the number of
chains for the RX status reporting.  The value was not tagged as
being used.  Rather than simply removing it try to fix it and
set the flag if we get a value.

Sposnored by:	The FreeBSD Foundation
Reviewed by:	thj
Differential Revision: https://reviews.freebsd.org/D50926
This commit is contained in:
Bjoern A. Zeeb 2025-06-19 00:55:27 +00:00
parent c7fe7912a6
commit be57603c46
1 changed files with 16 additions and 1 deletions
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17
sys/dev/iwx/if_iwx.c
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@ -4194,6 +4194,19 @@ iwx_rxmq_get_signal_strength(struct iwx_softc *sc,
return MAX(energy_a, energy_b);
}
static int
iwx_rxmq_get_chains(struct iwx_softc *sc,
struct iwx_rx_mpdu_desc *desc)
{
if (sc->sc_device_family >= IWX_DEVICE_FAMILY_AX210)
return ((desc->v3.rate_n_flags & IWX_RATE_MCS_ANT_AB_MSK) >>
IWX_RATE_MCS_ANT_POS);
else
return ((desc->v1.rate_n_flags & IWX_RATE_MCS_ANT_AB_MSK) >>
IWX_RATE_MCS_ANT_POS);
}
static void
iwx_rx_rx_phy_cmd(struct iwx_softc *sc, struct iwx_rx_packet *pkt,
struct iwx_rx_data *data)
@ -4637,7 +4650,9 @@ iwx_rx_mpdu_mq(struct iwx_softc *sc, struct mbuf *m, void *pktdata,
chanidx <= 14 ? IEEE80211_CHAN_2GHZ : IEEE80211_CHAN_5GHZ);
rxs.c_band = chanidx <= 14 ? IEEE80211_CHAN_2GHZ : IEEE80211_CHAN_5GHZ;
rxs.c_rx_tsf = device_timestamp;
rxs.c_chain = chanidx;
rxs.c_chain = iwx_rxmq_get_chains(sc, desc);
if (rxs.c_chain != 0)
rxs.r_flags |= IEEE80211_R_C_CHAIN;
/* rssi is in 1/2db units */
rxs.c_rssi = rssi * 2;