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ath5k: support for FIF_FCSFAIL filter 

When the FIF_FCSFAIL filter flag is set, pass frames with CRC errors.

Signed-off-by: Mathy Vanhoef <vanhoefm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Mathy Vanhoef 2014-06-13 23:40:22 +02:00 committed by John W. Linville
parent c64800e772
commit 41881354f9
3 changed files with 17 additions and 2 deletions
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1
drivers/net/wireless/ath/ath5k/ath5k.h
View File

@ -1285,6 +1285,7 @@ struct ath5k_hw {
#define ATH_STAT_STARTED 3 /* opened & irqs enabled */
unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
unsigned int fif_filter_flags; /* Current FIF_* filter flags */
struct ieee80211_channel *curchan; /* current h/w channel */
u16 nvifs;

16
drivers/net/wireless/ath/ath5k/base.c
View File

@ -1382,6 +1382,9 @@ ath5k_receive_frame(struct ath5k_hw *ah, struct sk_buff *skb,
rxs->flag = 0;
if (unlikely(rs->rs_status & AR5K_RXERR_MIC))
rxs->flag |= RX_FLAG_MMIC_ERROR;
if (unlikely(rs->rs_status & AR5K_RXERR_CRC))
rxs->flag |= RX_FLAG_FAILED_FCS_CRC;
/*
* always extend the mac timestamp, since this information is
@ -1449,6 +1452,8 @@ ath5k_receive_frame_ok(struct ath5k_hw *ah, struct ath5k_rx_status *rs)
ah->stats.rx_bytes_count += rs->rs_datalen;
if (unlikely(rs->rs_status)) {
unsigned int filters;
if (rs->rs_status & AR5K_RXERR_CRC)
ah->stats.rxerr_crc++;
if (rs->rs_status & AR5K_RXERR_FIFO)
@ -1480,8 +1485,15 @@ ath5k_receive_frame_ok(struct ath5k_hw *ah, struct ath5k_rx_status *rs)
return true;
}
/* reject any frames with non-crypto errors */
if (rs->rs_status & ~(AR5K_RXERR_DECRYPT))
/*
* Reject any frames with non-crypto errors, and take into account the
* current FIF_* filters.
*/
filters = AR5K_RXERR_DECRYPT;
if (ah->fif_filter_flags & FIF_FCSFAIL)
filters |= AR5K_RXERR_CRC;
if (rs->rs_status & ~filters)
return false;
}

2
drivers/net/wireless/ath/ath5k/mac80211-ops.c
View File

@ -473,6 +473,8 @@ ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
/* Set the cached hw filter flags, this will later actually
* be set in HW */
ah->filter_flags = rfilt;
/* Store current FIF filter flags */
ah->fif_filter_flags = *new_flags;
mutex_unlock(&ah->lock);
}