diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/tx.c | 68 |
1 files changed, 37 insertions, 31 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index bf3600a0477..52ab85c4341 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -85,8 +85,8 @@ static inline void ieee80211_dump_frame(const char *ifname, const char *title, } #endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */ -static u16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, - int next_frag_len) +static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, + int next_frag_len) { int rate, mrate, erp, dur, i; struct ieee80211_rate *txrate; @@ -138,7 +138,7 @@ static u16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, /* data/mgmt */ if (0 /* FIX: data/mgmt during CFP */) - return 32768; + return cpu_to_le16(32768); if (group_addr) /* Group address as the destination - no ACK */ return 0; @@ -208,7 +208,7 @@ static u16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, tx->sdata->bss_conf.use_short_preamble); } - return dur; + return cpu_to_le16(dur); } static int inline is_ieee80211_device(struct net_device *dev, @@ -541,7 +541,6 @@ static ieee80211_tx_result ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; - u16 dur; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); struct ieee80211_supported_band *sband; @@ -599,14 +598,6 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE; } - /* Setup duration field for the first fragment of the frame. Duration - * for remaining fragments will be updated when they are being sent - * to low-level driver in ieee80211_tx(). */ - dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1), - (tx->flags & IEEE80211_TX_FRAGMENTED) ? - tx->extra_frag[0]->len : 0); - hdr->duration_id = cpu_to_le16(dur); - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { struct ieee80211_rate *rate; @@ -708,6 +699,8 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG)); copylen = left > per_fragm ? per_fragm : left; memcpy(skb_put(frag, copylen), pos, copylen); + memcpy(frag->cb, first->cb, sizeof(frag->cb)); + skb_copy_queue_mapping(frag, first); pos += copylen; left -= copylen; @@ -752,6 +745,36 @@ ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx) } static ieee80211_tx_result +ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; + int next_len, i; + int group_addr = is_multicast_ether_addr(hdr->addr1); + + if (!(tx->flags & IEEE80211_TX_FRAGMENTED)) { + hdr->duration_id = ieee80211_duration(tx, group_addr, 0); + return TX_CONTINUE; + } + + hdr->duration_id = ieee80211_duration(tx, group_addr, + tx->extra_frag[0]->len); + + for (i = 0; i < tx->num_extra_frag; i++) { + if (i + 1 < tx->num_extra_frag) { + next_len = tx->extra_frag[i + 1]->len; + } else { + next_len = 0; + tx->rate_idx = tx->last_frag_rate_idx; + } + + hdr = (struct ieee80211_hdr *)tx->extra_frag[i]->data; + hdr->duration_id = ieee80211_duration(tx, 0, next_len); + } + + return TX_CONTINUE; +} + +static ieee80211_tx_result ieee80211_tx_h_stats(struct ieee80211_tx_data *tx) { int i; @@ -785,6 +808,7 @@ static ieee80211_tx_handler ieee80211_tx_handlers[] = ieee80211_tx_h_fragment, /* handlers after fragment must be aware of tx info fragmentation! */ ieee80211_tx_h_encrypt, + ieee80211_tx_h_calculate_duration, ieee80211_tx_h_stats, NULL }; @@ -1151,24 +1175,6 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb) if (invoke_tx_handlers(&tx)) goto out; - if (tx.extra_frag) { - for (i = 0; i < tx.num_extra_frag; i++) { - int next_len, dur; - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) - tx.extra_frag[i]->data; - - if (i + 1 < tx.num_extra_frag) { - next_len = tx.extra_frag[i + 1]->len; - } else { - next_len = 0; - tx.rate_idx = tx.last_frag_rate_idx; - } - dur = ieee80211_duration(&tx, 0, next_len); - hdr->duration_id = cpu_to_le16(dur); - } - } - retry: ret = __ieee80211_tx(local, skb, &tx); if (ret) { |