mac80211: minstrel_ht: Increase the range of handled rate indexes
Since 5935839ad735 ("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>
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 17ef54a..ccec718 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -240,8 +240,8 @@
* MCS groups, CCK rates do not provide aggregation and are therefore at last.
*/
static void
-minstrel_ht_sort_best_tp_rates(struct minstrel_ht_sta *mi, u8 index,
- u8 *tp_list)
+minstrel_ht_sort_best_tp_rates(struct minstrel_ht_sta *mi, u16 index,
+ u16 *tp_list)
{
int cur_group, cur_idx, cur_thr, cur_prob;
int tmp_group, tmp_idx, tmp_thr, tmp_prob;
@@ -278,7 +278,7 @@
* Find and set the topmost probability rate per sta and per group
*/
static void
-minstrel_ht_set_best_prob_rate(struct minstrel_ht_sta *mi, u8 index)
+minstrel_ht_set_best_prob_rate(struct minstrel_ht_sta *mi, u16 index)
{
struct minstrel_mcs_group_data *mg;
struct minstrel_rate_stats *mr;
@@ -321,8 +321,8 @@
*/
static void
minstrel_ht_assign_best_tp_rates(struct minstrel_ht_sta *mi,
- u8 tmp_mcs_tp_rate[MAX_THR_RATES],
- u8 tmp_cck_tp_rate[MAX_THR_RATES])
+ u16 tmp_mcs_tp_rate[MAX_THR_RATES],
+ u16 tmp_cck_tp_rate[MAX_THR_RATES])
{
unsigned int tmp_group, tmp_idx, tmp_cck_tp, tmp_mcs_tp;
int i;
@@ -386,8 +386,8 @@
struct minstrel_mcs_group_data *mg;
struct minstrel_rate_stats *mr;
int group, i, j;
- u8 tmp_mcs_tp_rate[MAX_THR_RATES], tmp_group_tp_rate[MAX_THR_RATES];
- u8 tmp_cck_tp_rate[MAX_THR_RATES], index;
+ u16 tmp_mcs_tp_rate[MAX_THR_RATES], tmp_group_tp_rate[MAX_THR_RATES];
+ u16 tmp_cck_tp_rate[MAX_THR_RATES], index;
if (mi->ampdu_packets > 0) {
mi->avg_ampdu_len = minstrel_ewma(mi->avg_ampdu_len,
@@ -517,7 +517,7 @@
}
static void
-minstrel_downgrade_rate(struct minstrel_ht_sta *mi, u8 *idx, bool primary)
+minstrel_downgrade_rate(struct minstrel_ht_sta *mi, u16 *idx, bool primary)
{
int group, orig_group;