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madwifi: remove the minstrel_mrr hack and add two patches that massively improve minstrel's performance and response time

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10897 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2008-04-21 02:39:40 +00:00
parent b3537c5172
commit 1f202039db
3 changed files with 89 additions and 22 deletions
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22
package/madwifi/patches/318-minstrel_mrr.patch
View File

@ -1,22 +0,0 @@
Index: madwifi-trunk-r3314/ath_rate/minstrel/minstrel.c
===================================================================
--- madwifi-trunk-r3314.orig/ath_rate/minstrel/minstrel.c 2008-02-20 18:10:48.795295077 +0100
+++ madwifi-trunk-r3314/ath_rate/minstrel/minstrel.c 2008-02-20 18:10:50.951417946 +0100
@@ -328,7 +328,7 @@
return;
}
- mrr = sc->sc_mrretry && !(ic->ic_flags & IEEE80211_F_USEPROT) && ENABLE_MRR;
+ mrr = sc->sc_mrretry && ENABLE_MRR;
if (sn->static_rate_ndx >= 0) {
ndx = sn->static_rate_ndx;
@@ -486,7 +486,7 @@
if (!ts->ts_status) /* Success when sending a packet*/
sn->rs_ratesuccess[final_ndx]++;
- mrr = sc->sc_mrretry && !(ic->ic_flags & IEEE80211_F_USEPROT) && ENABLE_MRR;
+ mrr = sc->sc_mrretry && ENABLE_MRR;
if (!mrr) {
if ((0 <= final_ndx) && (final_ndx < sn->num_rates)) {

13
package/madwifi/patches/370-minstrel_failcnt.patch Normal file
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@ -0,0 +1,13 @@
Index: madwifi-trunk-r3314/ath_rate/minstrel/minstrel.c
===================================================================
--- madwifi-trunk-r3314.orig/ath_rate/minstrel/minstrel.c 2008-04-21 00:51:15.000000000 +0200
+++ madwifi-trunk-r3314/ath_rate/minstrel/minstrel.c 2008-04-21 02:41:27.000000000 +0200
@@ -475,7 +475,7 @@
/* 'tries' is the total number of times we have endeavoured to
* send this packet, and is a sum of the #attempts at each
* level in the multi-rate retry chain */
- tries = ts->ts_shortretry + ts->ts_longretry + 1;
+ tries = ts->ts_longretry + 1;
if (sn->num_rates <= 0) {
DPRINTF(sc, "%s: " MAC_FMT " %s no rates yet\n", dev_info,

76
package/madwifi/patches/380-minstrel_sampling.patch Normal file
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@ -0,0 +1,76 @@
Index: madwifi-trunk-r3314/ath/if_ath.c
===================================================================
--- madwifi-trunk-r3314.orig/ath/if_ath.c 2008-04-21 02:44:23.000000000 +0200
+++ madwifi-trunk-r3314/ath/if_ath.c 2008-04-21 03:33:02.000000000 +0200
@@ -8095,6 +8095,7 @@
ath_hal_setupxtxdesc(sc->sc_ah, ds, mrr.rate1, mrr.retries1,
mrr.rate2, mrr.retries2,
mrr.rate3, mrr.retries3);
+ bf->rcflags = mrr.privflags;
}
#ifndef ATH_SUPERG_FF
Index: madwifi-trunk-r3314/ath/if_athvar.h
===================================================================
--- madwifi-trunk-r3314.orig/ath/if_athvar.h 2008-04-21 00:50:13.000000000 +0200
+++ madwifi-trunk-r3314/ath/if_athvar.h 2008-04-21 03:31:48.000000000 +0200
@@ -446,6 +446,7 @@
u_int16_t bf_flags; /* tx descriptor flags */
u_int64_t bf_tsf;
int16_t bf_channoise;
+ unsigned int rcflags;
#ifdef ATH_SUPERG_FF
/* XXX: combine this with bf_skbaddr if it ever changes to accommodate
* multiple segments.
Index: madwifi-trunk-r3314/ath_rate/minstrel/minstrel.c
===================================================================
--- madwifi-trunk-r3314.orig/ath_rate/minstrel/minstrel.c 2008-04-21 02:50:31.000000000 +0200
+++ madwifi-trunk-r3314/ath_rate/minstrel/minstrel.c 2008-04-21 04:08:36.000000000 +0200
@@ -336,7 +336,7 @@
sn->packet_count++;
sn->random_n = (sn->a * sn->random_n) + sn->b;
offset = sn->random_n & 0xf;
- if ((((100 * sn->sample_count) / (sn->sample_count + sn->packet_count)) < ath_lookaround_rate) && (offset < 2)) {
+ if ((((100 * sn->sample_count) / (sn->packet_count ?: 1)) < ath_lookaround_rate) && (offset < 2)) {
sn->sample_count++;
sn->is_sampling = 1;
if (sn->packet_count >= 10000) {
@@ -398,11 +398,14 @@
if (sn->num_rates <= 0)
return;
+ mrr->privflags = sn->is_sampling;
if (sn->is_sampling) {
sn->is_sampling = 0;
- if (sn->rs_sample_rate_slower)
+ if (sn->rs_sample_rate_slower) {
rc1 = sn->rs_sample_rate;
- else
+ if (sn->sample_count > 0)
+ sn->sample_count--;
+ } else
rc1 = sn->max_tp_rate;
} else {
rc1 = sn->max_tp_rate2;
@@ -525,6 +528,9 @@
if (tries <= tries1)
return;
+ if (bf->rcflags)
+ sn->sample_count++;
+
if (tries2 < 0)
return;
tries = tries - tries1;
Index: madwifi-trunk-r3314/net80211/ieee80211_rate.h
===================================================================
--- madwifi-trunk-r3314.orig/net80211/ieee80211_rate.h 2008-01-31 03:29:42.000000000 +0100
+++ madwifi-trunk-r3314/net80211/ieee80211_rate.h 2008-04-21 03:30:25.000000000 +0200
@@ -87,6 +87,7 @@
int retries2;
int rate3;
int retries3;
+ int privflags;
};
struct ieee80211_rate_ops {