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Handle RX Keymiss events.

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The AR9003 series NICs implement a separate RX error to signal that a
Keycache miss occured.  The earlier NICs would not set the key index
valid bit.

I'll dig into the difference between "no key index bit set" and "keycache
miss".
This commit is contained in:
Adrian Chadd 2012-07-15 20:51:41 +00:00
parent 29edf89eaa
commit c7f5bb7a4f
3 changed files with 13 additions and 1 deletions
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8
sys/dev/ath/if_ath_rx.c
View File

@ -534,6 +534,14 @@ ath_rx_pkt(struct ath_softc *sc, struct ath_rx_status *rs, HAL_STATUS status,
goto rx_accept;
sc->sc_stats.ast_rx_badcrypt++;
}
/*
* Similar as above - if the failure was a keymiss
* just punt it up to the upper layers for now.
*/
if (rs->rs_status & HAL_RXERR_KEYMISS) {
sc->sc_stats.ast_rx_keymiss++;
goto rx_accept;
}
if (rs->rs_status & HAL_RXERR_MIC) {
sc->sc_stats.ast_rx_badmic++;
/*

2
sys/dev/ath/if_ath_sysctl.c
View File

@ -934,6 +934,8 @@ ath_sysctl_stats_attach(struct ath_softc *sc)
SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_tx_mcastq_overflow",
CTLFLAG_RD, &sc->sc_stats.ast_tx_mcastq_overflow, 0,
"Number of multicast frames exceeding maximum mcast queue depth");
SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "ast_rx_keymiss", CTLFLAG_RD,
&sc->sc_stats.ast_rx_keymiss, 0, "");
/* Attach the RX phy error array */
ath_sysctl_stats_attach_rxphyerr(sc, child);

4
sys/dev/ath/if_athioctl.h
View File

@ -161,7 +161,9 @@ struct ath_stats {
u_int32_t ast_tx_aggr_ok; /* aggregate TX ok */
u_int32_t ast_tx_aggr_fail; /* aggregate TX failed */
u_int32_t ast_tx_mcastq_overflow; /* multicast queue overflow */
u_int32_t ast_pad[1];
u_int32_t ast_rx_keymiss;
u_int32_t ast_pad[16];
};
#define SIOCGATHSTATS _IOWR('i', 137, struct ifreq)