summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorKarl Beldan <karl.beldan@rivierawaves.com>2014-10-20 15:46:00 +0200
committerJohannes Berg <johannes.berg@intel.com>2014-10-20 21:39:35 +0200
commit8a0ee4fe1951af252b1ac7b5c6af4083bafc4c7e (patch)
tree6a16d656abbfc365e37e510c9dd7f1c950e1e9a7
parentd4d141cae804a430054f4138fa177229114f203a (diff)
mac80211: minstrel_ht: macros adjustments for future VHT_GROUPs
No functional change. Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c51
-rw-r--r--net/mac80211/rc80211_minstrel_ht.h15
-rw-r--r--net/mac80211/rc80211_minstrel_ht_debugfs.c10
3 files changed, 42 insertions, 34 deletions
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index ccec718c29f9..a48eb76440c6 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -34,12 +34,16 @@
/* Transmit duration for the raw data part of an average sized packet */
#define MCS_DURATION(streams, sgi, bps) MCS_SYMBOL_TIME(sgi, MCS_NSYMS((streams) * (bps)))
+#define BW_20 0
+#define BW_40 1
+
/*
* Define group sort order: HT40 -> SGI -> #streams
*/
#define GROUP_IDX(_streams, _sgi, _ht40) \
+ MINSTREL_HT_GROUP_0 + \
MINSTREL_MAX_STREAMS * 2 * _ht40 + \
- MINSTREL_MAX_STREAMS * _sgi + \
+ MINSTREL_MAX_STREAMS * _sgi + \
_streams - 1
/* MCS rate information for an MCS group */
@@ -76,13 +80,13 @@
CCK_ACK_DURATION(55, _short), \
CCK_ACK_DURATION(110, _short)
-#define CCK_GROUP \
- [MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS] = { \
- .streams = 0, \
- .duration = { \
- CCK_DURATION_LIST(false), \
- CCK_DURATION_LIST(true) \
- } \
+#define CCK_GROUP \
+ [MINSTREL_CCK_GROUP] = { \
+ .streams = 0, \
+ .duration = { \
+ CCK_DURATION_LIST(false), \
+ CCK_DURATION_LIST(true) \
+ } \
}
/*
@@ -91,38 +95,36 @@
* use.
*
* Sortorder has to be fixed for GROUP_IDX macro to be applicable:
- * HT40 -> SGI -> #streams
+ * BW -> SGI -> #streams
*/
const struct mcs_group minstrel_mcs_groups[] = {
- MCS_GROUP(1, 0, 0),
- MCS_GROUP(2, 0, 0),
+ MCS_GROUP(1, 0, BW_20),
+ MCS_GROUP(2, 0, BW_20),
#if MINSTREL_MAX_STREAMS >= 3
- MCS_GROUP(3, 0, 0),
+ MCS_GROUP(3, 0, BW_20),
#endif
- MCS_GROUP(1, 1, 0),
- MCS_GROUP(2, 1, 0),
+ MCS_GROUP(1, 1, BW_20),
+ MCS_GROUP(2, 1, BW_20),
#if MINSTREL_MAX_STREAMS >= 3
- MCS_GROUP(3, 1, 0),
+ MCS_GROUP(3, 1, BW_20),
#endif
- MCS_GROUP(1, 0, 1),
- MCS_GROUP(2, 0, 1),
+ MCS_GROUP(1, 0, BW_40),
+ MCS_GROUP(2, 0, BW_40),
#if MINSTREL_MAX_STREAMS >= 3
- MCS_GROUP(3, 0, 1),
+ MCS_GROUP(3, 0, BW_40),
#endif
- MCS_GROUP(1, 1, 1),
- MCS_GROUP(2, 1, 1),
+ MCS_GROUP(1, 1, BW_40),
+ MCS_GROUP(2, 1, BW_40),
#if MINSTREL_MAX_STREAMS >= 3
- MCS_GROUP(3, 1, 1),
+ MCS_GROUP(3, 1, BW_40),
#endif
- /* must be last */
CCK_GROUP
};
-#define MINSTREL_CCK_GROUP (ARRAY_SIZE(minstrel_mcs_groups) - 1)
static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES] __read_mostly;
@@ -971,8 +973,7 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
if (!sta->ht_cap.ht_supported)
goto use_legacy;
- BUILD_BUG_ON(ARRAY_SIZE(minstrel_mcs_groups) !=
- MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS + 1);
+ BUILD_BUG_ON(ARRAY_SIZE(minstrel_mcs_groups) != MINSTREL_GROUPS_NB);
msp->is_ht = true;
memset(mi, 0, sizeof(*mi));
diff --git a/net/mac80211/rc80211_minstrel_ht.h b/net/mac80211/rc80211_minstrel_ht.h
index 8b54e894b197..e747ac668afe 100644
--- a/net/mac80211/rc80211_minstrel_ht.h
+++ b/net/mac80211/rc80211_minstrel_ht.h
@@ -13,8 +13,17 @@
* The number of streams can be changed to 2 to reduce code
* size and memory footprint.
*/
-#define MINSTREL_MAX_STREAMS 3
-#define MINSTREL_STREAM_GROUPS 4
+#define MINSTREL_MAX_STREAMS 3
+#define MINSTREL_HT_STREAM_GROUPS 4 /* BW(=2) * SGI(=2) */
+
+#define MINSTREL_HT_GROUPS_NB (MINSTREL_MAX_STREAMS * \
+ MINSTREL_HT_STREAM_GROUPS)
+#define MINSTREL_CCK_GROUPS_NB 1
+#define MINSTREL_GROUPS_NB (MINSTREL_HT_GROUPS_NB + \
+ MINSTREL_CCK_GROUPS_NB)
+
+#define MINSTREL_HT_GROUP_0 0
+#define MINSTREL_CCK_GROUP (MINSTREL_HT_GROUP_0 + MINSTREL_HT_GROUPS_NB)
#define MCS_GROUP_RATES 8
@@ -80,7 +89,7 @@ struct minstrel_ht_sta {
u8 cck_supported_short;
/* MCS rate group info and statistics */
- struct minstrel_mcs_group_data groups[MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS + 1];
+ struct minstrel_mcs_group_data groups[MINSTREL_GROUPS_NB];
};
struct minstrel_ht_sta_priv {
diff --git a/net/mac80211/rc80211_minstrel_ht_debugfs.c b/net/mac80211/rc80211_minstrel_ht_debugfs.c
index d537bec93754..d2f53b867660 100644
--- a/net/mac80211/rc80211_minstrel_ht_debugfs.c
+++ b/net/mac80211/rc80211_minstrel_ht_debugfs.c
@@ -18,7 +18,6 @@
static char *
minstrel_ht_stats_dump(struct minstrel_ht_sta *mi, int i, char *p)
{
- unsigned int max_mcs = MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS;
const struct mcs_group *mg;
unsigned int j, tp, prob, eprob;
char htmode = '2';
@@ -41,7 +40,7 @@ minstrel_ht_stats_dump(struct minstrel_ht_sta *mi, int i, char *p)
if (!(mi->groups[i].supported & BIT(j)))
continue;
- if (i == max_mcs)
+ if (i == MINSTREL_CCK_GROUP)
p += sprintf(p, "CCK/%cP ", j < 4 ? 'L' : 'S');
else
p += sprintf(p, "HT%c0/%cGI ", htmode, gimode);
@@ -52,7 +51,7 @@ minstrel_ht_stats_dump(struct minstrel_ht_sta *mi, int i, char *p)
*(p++) = (idx == mi->max_tp_rate[3]) ? 'D' : ' ';
*(p++) = (idx == mi->max_prob_rate) ? 'P' : ' ';
- if (i == max_mcs) {
+ if (i == MINSTREL_CCK_GROUP) {
int r = bitrates[j % 4];
p += sprintf(p, " %2u.%1uM", r / 10, r % 10);
} else {
@@ -85,7 +84,6 @@ minstrel_ht_stats_open(struct inode *inode, struct file *file)
struct minstrel_ht_sta *mi = &msp->ht;
struct minstrel_debugfs_info *ms;
unsigned int i;
- unsigned int max_mcs = MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS;
char *p;
int ret;
@@ -106,8 +104,8 @@ minstrel_ht_stats_open(struct inode *inode, struct file *file)
"ret *ok(*cum) ok( cum)\n");
- p = minstrel_ht_stats_dump(mi, max_mcs, p);
- for (i = 0; i < max_mcs; i++)
+ p = minstrel_ht_stats_dump(mi, MINSTREL_CCK_GROUP, p);
+ for (i = 0; i < MINSTREL_CCK_GROUP; i++)
p = minstrel_ht_stats_dump(mi, i, p);
p += sprintf(p, "\nTotal packet count:: ideal %d "