From owner-svn-src-head@FreeBSD.ORG Sun Mar 13 11:45:59 2011 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2A19C106566B; Sun, 13 Mar 2011 11:45:59 +0000 (UTC) (envelope-from bschmidt@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 179A48FC18; Sun, 13 Mar 2011 11:45:59 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id p2DBjw3m053630; Sun, 13 Mar 2011 11:45:58 GMT (envelope-from bschmidt@svn.freebsd.org) Received: (from bschmidt@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id p2DBjwGo053628; Sun, 13 Mar 2011 11:45:58 GMT (envelope-from bschmidt@svn.freebsd.org) Message-Id: <201103131145.p2DBjwGo053628@svn.freebsd.org> From: Bernhard Schmidt Date: Sun, 13 Mar 2011 11:45:58 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r219598 - head/sys/net80211 X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 13 Mar 2011 11:45:59 -0000 Author: bschmidt Date: Sun Mar 13 11:45:58 2011 New Revision: 219598 URL: http://svn.freebsd.org/changeset/base/219598 Log: Change the way HT capatibilities are announced. Get rid of the assumption that every device is capable of 40MHz, SGI and 2 spartial streams. Instead of printing, in the worst case, 8 times 76 MCS rates, print logically connect ranges and the support RX/TX streams. A device without 40MHz and SGI support looks like: ath0: 2T2R ath0: 11na MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps ath0: 11ng MCS 20Mhz ath0: MCS 0-7: 6.5Mbps - 65Mbps ath0: MCS 8-15: 13Mbps - 130Mbps Modified: head/sys/net80211/ieee80211_ht.c Modified: head/sys/net80211/ieee80211_ht.c ============================================================================== --- head/sys/net80211/ieee80211_ht.c Sun Mar 13 11:44:16 2011 (r219597) +++ head/sys/net80211/ieee80211_ht.c Sun Mar 13 11:45:58 2011 (r219598) @@ -308,68 +308,113 @@ ieee80211_ht_vdetach(struct ieee80211vap { } +static int +ht_getrate(struct ieee80211com *ic, int index, int mode, int ratetype) +{ + int mword, rate; + + mword = ieee80211_rate2media(ic, index | IEEE80211_RATE_MCS, mode); + if (IFM_SUBTYPE(mword) != IFM_IEEE80211_MCS) + return (0); + switch (ratetype) { + case 0: + rate = ieee80211_htrates[index].ht20_rate_800ns; + break; + case 1: + rate = ieee80211_htrates[index].ht20_rate_400ns; + break; + case 2: + rate = ieee80211_htrates[index].ht40_rate_800ns; + break; + default: + rate = ieee80211_htrates[index].ht40_rate_400ns; + break; + } + return (rate); +} + +static struct printranges { + int minmcs; + int maxmcs; + int txstream; + int ratetype; + int htcapflags; +} ranges[] = { + { 0, 7, 1, 0, 0 }, + { 8, 15, 2, 0, 0 }, + { 16, 23, 3, 0, 0 }, + { 24, 31, 4, 0, 0 }, + { 32, 0, 1, 2, IEEE80211_HTC_TXMCS32 }, + { 33, 38, 2, 0, IEEE80211_HTC_TXUNEQUAL }, + { 39, 52, 3, 0, IEEE80211_HTC_TXUNEQUAL }, + { 53, 76, 4, 0, IEEE80211_HTC_TXUNEQUAL }, + { 0, 0, 0, 0, 0 }, +}; + static void -ht_rateprint(struct ieee80211com *ic, int mode, - const struct ieee80211_htrateset *rs, int maxmcs, int ratetype) +ht_rateprint(struct ieee80211com *ic, int mode, int ratetype) { - int i, rate, mword; + struct ifnet *ifp = ic->ic_ifp; + int minrate, maxrate; + struct printranges *range; - for (i = 0; i < rs->rs_nrates && i < maxmcs; i++) { - mword = ieee80211_rate2media(ic, - rs->rs_rates[i] | IEEE80211_RATE_MCS, mode); - if (IFM_SUBTYPE(mword) != IFM_IEEE80211_MCS) + for (range = ranges; range->txstream != 0; range++) { + if (ic->ic_txstream < range->txstream) continue; - switch (ratetype) { - case 0: - rate = ieee80211_htrates[ - rs->rs_rates[i]].ht20_rate_800ns; - break; - case 1: - rate = ieee80211_htrates[ - rs->rs_rates[i]].ht20_rate_400ns; - break; - case 2: - rate = ieee80211_htrates[ - rs->rs_rates[i]].ht40_rate_800ns; - break; - default: - rate = ieee80211_htrates[ - rs->rs_rates[i]].ht40_rate_400ns; - break; + if (range->htcapflags && + (ic->ic_htcaps & range->htcapflags) == 0) + continue; + if (ratetype < range->ratetype) + continue; + minrate = ht_getrate(ic, range->minmcs, mode, ratetype); + maxrate = ht_getrate(ic, range->maxmcs, mode, ratetype); + if (range->maxmcs) { + if_printf(ifp, "MCS %d-%d: %d%sMbps - %d%sMbps\n", + range->minmcs, range->maxmcs, + minrate/2, ((minrate & 0x1) != 0 ? ".5" : ""), + maxrate/2, ((maxrate & 0x1) != 0 ? ".5" : "")); + } else { + if_printf(ifp, "MCS %d: %d%sMbps\n", range->minmcs, + minrate/2, ((minrate & 0x1) != 0 ? ".5" : "")); } - printf("%s%d%sMbps", (i != 0 ? " " : ""), - rate / 2, ((rate & 0x1) != 0 ? ".5" : "")); } - printf("\n"); } static void -ht_announce(struct ieee80211com *ic, int mode, - const struct ieee80211_htrateset *rs) +ht_announce(struct ieee80211com *ic, int mode) { struct ifnet *ifp = ic->ic_ifp; - int maxmcs = 2 * 8; const char *modestr = ieee80211_phymode_name[mode]; - - KASSERT(maxmcs <= 16, ("maxmcs > 16")); - if_printf(ifp, "%d MCS rates\n", maxmcs); - if_printf(ifp, "%s MCS 20Mhz: ", modestr); - ht_rateprint(ic, mode, rs, maxmcs, 0); - if_printf(ifp, "%s MCS 20Mhz SGI: ", modestr); - ht_rateprint(ic, mode, rs, maxmcs, 1); - if_printf(ifp, "%s MCS 40Mhz: ", modestr); - ht_rateprint(ic, mode, rs, maxmcs, 2); - if_printf(ifp, "%s MCS 40Mhz SGI: ", modestr); - ht_rateprint(ic, mode, rs, maxmcs, 3); + + if_printf(ifp, "%s MCS 20Mhz\n", modestr); + ht_rateprint(ic, mode, 0); + if (ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI20) { + if_printf(ifp, "%s MCS 20Mhz SGI\n", modestr); + ht_rateprint(ic, mode, 1); + } + if (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) { + if_printf(ifp, "%s MCS 40Mhz:\n", modestr); + ht_rateprint(ic, mode, 2); + } + if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) && + (ic->ic_htcaps & IEEE80211_HTCAP_SHORTGI40)) { + if_printf(ifp, "%s MCS 40Mhz SGI:\n", modestr); + ht_rateprint(ic, mode, 3); + } } void ieee80211_ht_announce(struct ieee80211com *ic) { + struct ifnet *ifp = ic->ic_ifp; + + if (isset(ic->ic_modecaps, IEEE80211_MODE_11NA) || + isset(ic->ic_modecaps, IEEE80211_MODE_11NG)) + if_printf(ifp, "%dT%dR\n", ic->ic_txstream, ic->ic_rxstream); if (isset(ic->ic_modecaps, IEEE80211_MODE_11NA)) - ht_announce(ic, IEEE80211_MODE_11NA, &ieee80211_rateset_11n); + ht_announce(ic, IEEE80211_MODE_11NA); if (isset(ic->ic_modecaps, IEEE80211_MODE_11NG)) - ht_announce(ic, IEEE80211_MODE_11NG, &ieee80211_rateset_11n); + ht_announce(ic, IEEE80211_MODE_11NG); } const struct ieee80211_htrateset *