9a9a302fcd
This can happen if the algos are built as modules but are not loaded. If the selected ratectl algo is not available, try to load it (The load module functions does nothing currently). Add a dummy ratectl algo which always selects the first available rate. Use that one if the desired algo is not available. MFC after: 1 week
85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
/*-
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* Copyright (c) 2010 Rui Paulo <rpaulo@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_ratectl.h>
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static const struct ieee80211_ratectl *ratectls[IEEE80211_RATECTL_MAX];
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static const char *ratectl_modnames[IEEE80211_RATECTL_MAX] = {
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[IEEE80211_RATECTL_AMRR] = "wlan_amrr",
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[IEEE80211_RATECTL_RSSADAPT] = "wlan_rssadapt",
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[IEEE80211_RATECTL_ONOE] = "wlan_onoe",
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[IEEE80211_RATECTL_SAMPLE] = "wlan_sample",
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[IEEE80211_RATECTL_NONE] = "wlan_none",
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};
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MALLOC_DEFINE(M_80211_RATECTL, "80211ratectl", "802.11 rate control");
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void
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ieee80211_ratectl_register(int type, const struct ieee80211_ratectl *ratectl)
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{
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if (type >= IEEE80211_RATECTL_MAX)
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return;
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ratectls[type] = ratectl;
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}
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void
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ieee80211_ratectl_unregister(int type)
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{
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if (type >= IEEE80211_RATECTL_MAX)
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return;
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ratectls[type] = NULL;
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}
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void
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ieee80211_ratectl_set(struct ieee80211vap *vap, int type)
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{
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if (type >= IEEE80211_RATECTL_MAX)
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return;
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if (ratectls[type] == NULL) {
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ieee80211_load_module(ratectl_modnames[type]);
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if (ratectls[type] == NULL) {
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IEEE80211_DPRINTF(vap, IEEE80211_MSG_RATECTL,
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"%s: unable to load algo %u, module %s\n",
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__func__, type, ratectl_modnames[type]);
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vap->iv_rate = ratectls[IEEE80211_RATECTL_NONE];
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return;
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}
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}
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vap->iv_rate = ratectls[type];
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}
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