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mac80211: minstrel_ht: Increase the range of handled rate indexes

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Since 5935839ad7 ("mac80211: improve minstrel_ht rate sorting by
throughput & probability"), the rate indexes are manipulated via u8's
and hence allow for a maximum of 256 mcs_group entries in
minstrel_mcs_groups.

ATM, minstrel_ht advertizes support up to 3HTSS@40MHz, consuming:
8(MCS_GROUP_RATES) * (3(SS)*2(GI)*2(BW)+1(CCK)), i.e. 104 entries.

Support for 3VHTSS@80MHz will require:
10(MCS_GROUP_RATES) * (3(SS)*2(GI)*2(BW)+1(CCK)) +
10(MCS_GROUP_RATES) * (3(SS)*2(GI)*3(BW)), i.e. 130 + 180 entries.

This change moves from u8s to u16s where necessary.

Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Cc: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Karl Beldan
2014-10-20 15:45:59 +02:00
committed by Johannes Berg
parent 8fa74e3aa6
commit d4d141cae8
2 changed files with 12 additions and 12 deletions
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8
net/mac80211/rc80211_minstrel_ht.h
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@@ -34,8 +34,8 @@ struct minstrel_mcs_group_data {
u8 supported;
/* sorted rate set within a MCS group*/
u8 max_group_tp_rate[MAX_THR_RATES];
u8 max_group_prob_rate;
u16 max_group_tp_rate[MAX_THR_RATES];
u16 max_group_prob_rate;
/* MCS rate statistics */
struct minstrel_rate_stats rates[MCS_GROUP_RATES];
@@ -52,8 +52,8 @@ struct minstrel_ht_sta {
unsigned int avg_ampdu_len;
/* overall sorted rate set */
u8 max_tp_rate[MAX_THR_RATES];
u8 max_prob_rate;
u16 max_tp_rate[MAX_THR_RATES];
u16 max_prob_rate;
/* time of last status update */
unsigned long stats_update;