mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-25 21:44:37 +02:00
82bf60b712
the link changes its status from very good to slightly bad. the previous version of the patch could have resulted in erratic rate control behavior when there was a lot of sampling backlog. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10921 3c298f89-4303-0410-b956-a3cf2f4a3e73
89 lines
3.0 KiB
Diff
89 lines
3.0 KiB
Diff
Index: madwifi-trunk-r3314/ath/if_ath.c
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===================================================================
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--- madwifi-trunk-r3314.orig/ath/if_ath.c 2008-04-21 09:13:19.000000000 +0200
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+++ madwifi-trunk-r3314/ath/if_ath.c 2008-04-23 01:15:49.000000000 +0200
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@@ -8095,6 +8095,7 @@
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ath_hal_setupxtxdesc(sc->sc_ah, ds, mrr.rate1, mrr.retries1,
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mrr.rate2, mrr.retries2,
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mrr.rate3, mrr.retries3);
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+ bf->rcflags = mrr.privflags;
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}
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#ifndef ATH_SUPERG_FF
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Index: madwifi-trunk-r3314/ath/if_athvar.h
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===================================================================
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--- madwifi-trunk-r3314.orig/ath/if_athvar.h 2008-04-21 09:13:19.000000000 +0200
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+++ madwifi-trunk-r3314/ath/if_athvar.h 2008-04-23 01:15:49.000000000 +0200
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@@ -446,6 +446,7 @@
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u_int16_t bf_flags; /* tx descriptor flags */
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u_int64_t bf_tsf;
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int16_t bf_channoise;
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+ unsigned int rcflags;
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#ifdef ATH_SUPERG_FF
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/* XXX: combine this with bf_skbaddr if it ever changes to accommodate
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* multiple segments.
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Index: madwifi-trunk-r3314/ath_rate/minstrel/minstrel.c
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===================================================================
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--- madwifi-trunk-r3314.orig/ath_rate/minstrel/minstrel.c 2008-04-21 09:13:19.000000000 +0200
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+++ madwifi-trunk-r3314/ath_rate/minstrel/minstrel.c 2008-04-23 01:15:50.000000000 +0200
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@@ -333,15 +333,19 @@
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if (sn->static_rate_ndx >= 0) {
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ndx = sn->static_rate_ndx;
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} else {
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+ int delta;
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sn->packet_count++;
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sn->random_n = (sn->a * sn->random_n) + sn->b;
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offset = sn->random_n & 0xf;
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- if ((((100 * sn->sample_count) / (sn->sample_count + sn->packet_count)) < ath_lookaround_rate) && (offset < 2)) {
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+ delta = (sn->packet_count * ath_lookaround_rate / 100) - sn->sample_count;
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+ if ((delta > 0) && (offset < 2)) {
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sn->sample_count++;
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sn->is_sampling = 1;
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if (sn->packet_count >= 10000) {
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sn->sample_count = 0;
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sn->packet_count = 0;
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+ } else if (delta > sn->num_rates * 2) {
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+ sn->sample_count += ((delta - sn->num_rates * 2) * ath_lookaround_rate) / 100;
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}
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/* Don't look for slowest rate (i.e. slowest
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@@ -398,11 +402,14 @@
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if (sn->num_rates <= 0)
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return;
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+ mrr->privflags = sn->is_sampling;
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if (sn->is_sampling) {
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sn->is_sampling = 0;
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- if (sn->rs_sample_rate_slower)
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+ if (sn->rs_sample_rate_slower) {
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rc1 = sn->rs_sample_rate;
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- else
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+ if (sn->sample_count > 0)
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+ sn->sample_count--;
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+ } else
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rc1 = sn->max_tp_rate;
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} else {
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rc1 = sn->max_tp_rate2;
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@@ -525,6 +532,9 @@
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if (tries <= tries1)
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return;
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+ if (bf->rcflags)
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+ sn->sample_count++;
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+
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if (tries2 < 0)
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return;
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tries = tries - tries1;
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Index: madwifi-trunk-r3314/net80211/ieee80211_rate.h
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===================================================================
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--- madwifi-trunk-r3314.orig/net80211/ieee80211_rate.h 2008-04-21 09:11:19.000000000 +0200
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+++ madwifi-trunk-r3314/net80211/ieee80211_rate.h 2008-04-21 09:13:19.000000000 +0200
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@@ -87,6 +87,7 @@
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int retries2;
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int rate3;
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int retries3;
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+ int privflags;
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};
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struct ieee80211_rate_ops {
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