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mac80211/drivers: rewrite the rate control API

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So after the previous changes we were still unhappy with how
convoluted the API is and decided to make things simpler for
everybody. This completely changes the rate control API, now
taking into account 802.11n with MCS rates and more control,
most drivers don't support that though.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2008-10-21 12:40:02 +02:00
committed by John W. Linville
parent cb121bad67
commit e6a9854b05
47 changed files with 897 additions and 693 deletions
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34
drivers/net/wireless/ath5k/base.c
View File

@@ -541,8 +541,8 @@ ath5k_pci_probe(struct pci_dev *pdev,
/* set up multi-rate retry capabilities */
if (sc->ah->ah_version == AR5K_AR5212) {
hw->max_altrates = 3;
hw->max_altrate_tries = 11;
hw->max_rates = 4;
hw->max_rate_tries = 11;
}
/* Finish private driver data initialization */
@@ -1181,7 +1181,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
ieee80211_get_hdrlen_from_skb(skb), AR5K_PKT_TYPE_NORMAL,
(sc->power_level * 2),
ieee80211_get_tx_rate(sc->hw, info)->hw_value,
info->control.retry_limit, keyidx, 0, flags, 0, 0);
info->control.rates[0].count, keyidx, 0, flags, 0, 0);
if (ret)
goto err_unmap;
@@ -1193,7 +1193,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
break;
mrr_rate[i] = rate->hw_value;
mrr_tries[i] = info->control.retries[i].limit;
mrr_tries[i] = info->control.rates[i + 1].count;
}
ah->ah_setup_mrr_tx_desc(ah, ds,
@@ -1849,30 +1849,26 @@ ath5k_tx_processq(struct ath5k_softc *sc, struct ath5k_txq *txq)
pci_unmap_single(sc->pdev, bf->skbaddr, skb->len,
PCI_DMA_TODEVICE);
memset(&info->status, 0, sizeof(info->status));
info->tx_rate_idx = ath5k_hw_to_driver_rix(sc,
ts.ts_rate[ts.ts_final_idx]);
info->status.retry_count = ts.ts_longretry;
ieee80211_tx_info_clear_status(info);
for (i = 0; i < 4; i++) {
struct ieee80211_tx_altrate *r =
&info->status.retries[i];
struct ieee80211_tx_rate *r =
&info->status.rates[i];
if (ts.ts_rate[i]) {
r->rate_idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]);
r->limit = ts.ts_retry[i];
r->idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]);
r->count = ts.ts_retry[i];
} else {
r->rate_idx = -1;
r->limit = 0;
r->idx = -1;
r->count = 0;
}
}
info->status.excessive_retries = 0;
/* count the successful attempt as well */
info->status.rates[ts.ts_final_idx].count++;
if (unlikely(ts.ts_status)) {
sc->ll_stats.dot11ACKFailureCount++;
if (ts.ts_status & AR5K_TXERR_XRETRY)
info->status.excessive_retries = 1;
else if (ts.ts_status & AR5K_TXERR_FILT)
if (ts.ts_status & AR5K_TXERR_FILT)
info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
} else {
info->flags |= IEEE80211_TX_STAT_ACK;