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mac80211: minstrel_ht: add flag to indicate missing/inaccurate tx A-MPDU length

Bladeren bron 
Some hardware (e.g. MediaTek MT7603) cannot report A-MPDU length in tx status
information. Add support for a flag to indicate that, to allow minstrel_ht
to use a fixed value in its internal calculation (which gives better results
than just defaulting to 1).

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Felix Fietkau
2019-01-16 22:32:12 +01:00
gecommit door Johannes Berg
bovenliggende a8d418d9ac
commit 77f7ffdc33
4 gewijzigde bestanden met toevoegingen van 29 en 8 verwijderingen
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7
net/mac80211/rc80211_minstrel_ht_debugfs.c
Bestand weergeven

@@ -160,9 +160,10 @@ minstrel_ht_stats_open(struct inode *inode, struct file *file)
"lookaround %d\n",
max(0, (int) mi->total_packets - (int) mi->sample_packets),
mi->sample_packets);
p += sprintf(p, "Average # of aggregated frames per A-MPDU: %d.%d\n",
MINSTREL_TRUNC(mi->avg_ampdu_len),
MINSTREL_TRUNC(mi->avg_ampdu_len * 10) % 10);
if (mi->avg_ampdu_len)
p += sprintf(p, "Average # of aggregated frames per A-MPDU: %d.%d\n",
MINSTREL_TRUNC(mi->avg_ampdu_len),
MINSTREL_TRUNC(mi->avg_ampdu_len * 10) % 10);
ms->len = p - ms->buf;
WARN_ON(ms->len + sizeof(*ms) > 32768);