Return-path: Received: from mail-wg0-f42.google.com ([74.125.82.42]:62934 "EHLO mail-wg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752750AbaJTNqZ (ORCPT ); Mon, 20 Oct 2014 09:46:25 -0400 Received: by mail-wg0-f42.google.com with SMTP id z12so5409655wgg.1 for ; Mon, 20 Oct 2014 06:46:21 -0700 (PDT) From: Karl Beldan To: Johannes Berg Cc: Karl Beldan , linux-wireless , karl.beldan@gmail.com, Felix Fietkau Subject: [PATCH v5 2/4] mac80211: minstrel_ht: macros adjustments for future VHT_GROUPs Date: Mon, 20 Oct 2014 15:46:00 +0200 Message-Id: <1413812762-6605-3-git-send-email-karl.beldan@gmail.com> (sfid-20141020_154630_653916_A70D4B31) In-Reply-To: <1413812762-6605-1-git-send-email-karl.beldan@gmail.com> References: <1413812762-6605-1-git-send-email-karl.beldan@gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Karl Beldan No functional change. Signed-off-by: Karl Beldan Cc: Felix Fietkau --- net/mac80211/rc80211_minstrel_ht.c | 51 +++++++++++++++--------------- net/mac80211/rc80211_minstrel_ht.h | 15 +++++++-- net/mac80211/rc80211_minstrel_ht_debugfs.c | 10 +++--- 3 files changed, 42 insertions(+), 34 deletions(-) diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index ccec718..a48eb76 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 8b54e89..e747ac6 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 d537bec..d2f53b8 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 " -- 2.0.1