From 8462fe3cd9ec8951871a20a4dfe36321ab075964 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Mon, 1 May 2006 22:45:50 +0100 Subject: [PATCH] softmac: suggest per-frame-type TX rate This patch is the first step towards rate control inside softmac. The txrates substructure has been extended to provide different fields for different types of packets (management/data, unicast/multicast). These fields are updated on association to values compatible with the access point we are associating to. Drivers can then use the new ieee80211softmac_suggest_txrate() function call when deciding which rate to transmit each frame at. This is immensely useful for ZD1211, and bcm can use it too. The user can still specify a rate through iwconfig, which is matched for all transmissions (assuming the rate they have specified is in the rate set required by the AP). At a later date, we can incorporate automatic rate management into the ieee80211softmac_recalc_txrates() function. This patch also removes the mcast_fallback field. Sam Leffler pointed out that this field is meaningless, because no driver will ever be retransmitting mcast frames (they are not acked). Signed-off-by: Daniel Drake Acked-by: Johannes Berg Signed-off-by: John W. Linville --- net/ieee80211/softmac/ieee80211softmac_assoc.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) (limited to 'net/ieee80211/softmac/ieee80211softmac_assoc.c') diff --git a/net/ieee80211/softmac/ieee80211softmac_assoc.c b/net/ieee80211/softmac/ieee80211softmac_assoc.c index 01f2133..5d90b9a 100644 --- a/net/ieee80211/softmac/ieee80211softmac_assoc.c +++ b/net/ieee80211/softmac/ieee80211softmac_assoc.c @@ -96,6 +96,7 @@ ieee80211softmac_disassoc(struct ieee80211softmac_device *mac) mac->associated = 0; mac->associnfo.bssvalid = 0; mac->associnfo.associating = 0; + ieee80211softmac_init_txrates(mac); ieee80211softmac_call_events_locked(mac, IEEE80211SOFTMAC_EVENT_DISASSOCIATED, NULL); spin_unlock_irqrestore(&mac->lock, flags); } @@ -118,24 +119,15 @@ ieee80211softmac_send_disassoc_req(struct ieee80211softmac_device *mac, u16 reas static inline int we_support_all_basic_rates(struct ieee80211softmac_device *mac, u8 *from, u8 from_len) { - int idx, search, found; - u8 rate, search_rate; + int idx; + u8 rate; for (idx = 0; idx < (from_len); idx++) { rate = (from)[idx]; if (!(rate & IEEE80211_BASIC_RATE_MASK)) continue; - found = 0; rate &= ~IEEE80211_BASIC_RATE_MASK; - for (search = 0; search < mac->ratesinfo.count; search++) { - search_rate = mac->ratesinfo.rates[search]; - search_rate &= ~IEEE80211_BASIC_RATE_MASK; - if (rate == search_rate) { - found = 1; - break; - } - } - if (!found) + if (!ieee80211softmac_ratesinfo_rate_supported(&mac->ratesinfo, rate)) return 0; } return 1; @@ -310,6 +302,9 @@ ieee80211softmac_associated(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net) { mac->associnfo.associating = 0; + mac->associnfo.supported_rates = net->supported_rates; + ieee80211softmac_recalc_txrates(mac); + mac->associated = 1; if (mac->set_bssid_filter) mac->set_bssid_filter(mac->dev, net->bssid); -- cgit v1.1