diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-21 17:19:50 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-07-21 17:19:50 +0200 |
commit | eb6a12c2428d21a9f3e0f1a50e927d5fd80fc3d0 (patch) | |
tree | 5ac6f43899648abeab1d43aad3107f664e7f13d5 /drivers/net/wireless/rt2x00/rt2x00mac.c | |
parent | c4762aba0b1f72659aae9ce37b772ca8bd8f06f4 (diff) | |
parent | 14b395e35d1afdd8019d11b92e28041fad591b71 (diff) |
Merge branch 'linus' into cpus4096-for-linus
Conflicts:
net/sunrpc/svc.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00mac.c')
-rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00mac.c | 172 |
1 files changed, 92 insertions, 80 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 9cb023edd2e..f1dcbaa80c3 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -31,14 +31,14 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, struct data_queue *queue, - struct sk_buff *frag_skb, - struct ieee80211_tx_control *control) + struct sk_buff *frag_skb) { - struct skb_frame_desc *skbdesc; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(frag_skb); + struct ieee80211_tx_info *rts_info; struct sk_buff *skb; int size; - if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) + if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) size = sizeof(struct ieee80211_cts); else size = sizeof(struct ieee80211_rts); @@ -52,23 +52,37 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, skb_reserve(skb, rt2x00dev->hw->extra_tx_headroom); skb_put(skb, size); - if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) - ieee80211_ctstoself_get(rt2x00dev->hw, control->vif, - frag_skb->data, frag_skb->len, control, + /* + * Copy TX information over from original frame to + * RTS/CTS frame. Note that we set the no encryption flag + * since we don't want this frame to be encrypted. + * RTS frames should be acked, while CTS-to-self frames + * should not. The ready for TX flag is cleared to prevent + * it being automatically send when the descriptor is + * written to the hardware. + */ + memcpy(skb->cb, frag_skb->cb, sizeof(skb->cb)); + rts_info = IEEE80211_SKB_CB(skb); + rts_info->flags |= IEEE80211_TX_CTL_DO_NOT_ENCRYPT; + rts_info->flags &= ~IEEE80211_TX_CTL_USE_RTS_CTS; + rts_info->flags &= ~IEEE80211_TX_CTL_USE_CTS_PROTECT; + rts_info->flags &= ~IEEE80211_TX_CTL_REQ_TX_STATUS; + + if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + rts_info->flags |= IEEE80211_TX_CTL_NO_ACK; + else + rts_info->flags &= ~IEEE80211_TX_CTL_NO_ACK; + + if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + ieee80211_ctstoself_get(rt2x00dev->hw, tx_info->control.vif, + frag_skb->data, size, tx_info, (struct ieee80211_cts *)(skb->data)); else - ieee80211_rts_get(rt2x00dev->hw, control->vif, - frag_skb->data, frag_skb->len, control, + ieee80211_rts_get(rt2x00dev->hw, tx_info->control.vif, + frag_skb->data, size, tx_info, (struct ieee80211_rts *)(skb->data)); - /* - * Initialize skb descriptor - */ - skbdesc = get_skb_frame_desc(skb); - memset(skbdesc, 0, sizeof(*skbdesc)); - skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED; - - if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, queue, skb, control)) { + if (rt2x00queue_write_tx_frame(queue, skb)) { WARNING(rt2x00dev, "Failed to send RTS/CTS frame.\n"); return NETDEV_TX_BUSY; } @@ -76,13 +90,14 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, return NETDEV_TX_OK; } -int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_control *control) +int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) { struct rt2x00_dev *rt2x00dev = hw->priv; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data; + enum data_queue_qid qid = skb_get_queue_mapping(skb); + struct rt2x00_intf *intf = vif_to_intf(tx_info->control.vif); struct data_queue *queue; - struct skb_frame_desc *skbdesc; u16 frame_control; /* @@ -100,57 +115,62 @@ int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, /* * Determine which queue to put packet on. */ - if (control->flags & IEEE80211_TXCTL_SEND_AFTER_DTIM && + if (tx_info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM && test_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags)) - queue = rt2x00queue_get_queue(rt2x00dev, RT2X00_BCN_QUEUE_ATIM); + queue = rt2x00queue_get_queue(rt2x00dev, QID_ATIM); else - queue = rt2x00queue_get_queue(rt2x00dev, control->queue); + queue = rt2x00queue_get_queue(rt2x00dev, qid); if (unlikely(!queue)) { ERROR(rt2x00dev, "Attempt to send packet over invalid queue %d.\n" - "Please file bug report to %s.\n", - control->queue, DRV_PROJECT); + "Please file bug report to %s.\n", qid, DRV_PROJECT); dev_kfree_skb_any(skb); return NETDEV_TX_OK; } /* - * If CTS/RTS is required. and this frame is not CTS or RTS, - * create and queue that frame first. But make sure we have - * at least enough entries available to send this CTS/RTS - * frame as well as the data frame. + * If CTS/RTS is required. create and queue that frame first. + * Make sure we have at least enough entries available to send + * this CTS/RTS frame as well as the data frame. + * Note that when the driver has set the set_rts_threshold() + * callback function it doesn't need software generation of + * either RTS or CTS-to-self frame and handles everything + * inside the hardware. */ frame_control = le16_to_cpu(ieee80211hdr->frame_control); - if (!is_rts_frame(frame_control) && !is_cts_frame(frame_control) && - (control->flags & (IEEE80211_TXCTL_USE_RTS_CTS | - IEEE80211_TXCTL_USE_CTS_PROTECT))) { + if ((tx_info->flags & (IEEE80211_TX_CTL_USE_RTS_CTS | + IEEE80211_TX_CTL_USE_CTS_PROTECT)) && + !rt2x00dev->ops->hw->set_rts_threshold) { if (rt2x00queue_available(queue) <= 1) { - ieee80211_stop_queue(rt2x00dev->hw, control->queue); + ieee80211_stop_queue(rt2x00dev->hw, qid); return NETDEV_TX_BUSY; } - if (rt2x00mac_tx_rts_cts(rt2x00dev, queue, skb, control)) { - ieee80211_stop_queue(rt2x00dev->hw, control->queue); + if (rt2x00mac_tx_rts_cts(rt2x00dev, queue, skb)) { + ieee80211_stop_queue(rt2x00dev->hw, qid); return NETDEV_TX_BUSY; } } /* - * Initialize skb descriptor + * XXX: This is as wrong as the old mac80211 code was, + * due to beacons not getting sequence numbers assigned + * properly. */ - skbdesc = get_skb_frame_desc(skb); - memset(skbdesc, 0, sizeof(*skbdesc)); + if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { + if (tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) + intf->seqno += 0x10; + ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); + ieee80211hdr->seq_ctrl |= cpu_to_le16(intf->seqno); + } - if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, queue, skb, control)) { - ieee80211_stop_queue(rt2x00dev->hw, control->queue); + if (rt2x00queue_write_tx_frame(queue, skb)) { + ieee80211_stop_queue(rt2x00dev->hw, qid); return NETDEV_TX_BUSY; } - if (rt2x00queue_full(queue)) - ieee80211_stop_queue(rt2x00dev->hw, control->queue); - - if (rt2x00dev->ops->lib->kick_tx_queue) - rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, control->queue); + if (rt2x00queue_threshold(queue)) + ieee80211_stop_queue(rt2x00dev->hw, qid); return NETDEV_TX_OK; } @@ -183,8 +203,7 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw, { struct rt2x00_dev *rt2x00dev = hw->priv; struct rt2x00_intf *intf = vif_to_intf(conf->vif); - struct data_queue *queue = - rt2x00queue_get_queue(rt2x00dev, RT2X00_BCN_QUEUE_BEACON); + struct data_queue *queue = rt2x00queue_get_queue(rt2x00dev, QID_BEACON); struct queue_entry *entry = NULL; unsigned int i; @@ -197,13 +216,12 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw, return -ENODEV; /* - * When we don't support mixed interfaces (a combination - * of sta and ap virtual interfaces) then we can only - * add this interface when the rival interface count is 0. + * We don't support mixed combinations of sta and ap virtual + * interfaces. We can only add this interface when the rival + * interface count is 0. */ - if (!test_bit(DRIVER_SUPPORT_MIXED_INTERFACES, &rt2x00dev->flags) && - ((conf->type == IEEE80211_IF_TYPE_AP && rt2x00dev->intf_sta_count) || - (conf->type != IEEE80211_IF_TYPE_AP && rt2x00dev->intf_ap_count))) + if ((conf->type == IEEE80211_IF_TYPE_AP && rt2x00dev->intf_sta_count) || + (conf->type != IEEE80211_IF_TYPE_AP && rt2x00dev->intf_ap_count)) return -ENOBUFS; /* @@ -343,7 +361,8 @@ int rt2x00mac_config_interface(struct ieee80211_hw *hw, { struct rt2x00_dev *rt2x00dev = hw->priv; struct rt2x00_intf *intf = vif_to_intf(vif); - int status; + int update_bssid = 0; + int status = 0; /* * Mac80211 might be calling this function while we are trying @@ -355,12 +374,13 @@ int rt2x00mac_config_interface(struct ieee80211_hw *hw, spin_lock(&intf->lock); /* - * If the interface does not work in master mode, - * then the bssid value in the interface structure - * should now be set. + * conf->bssid can be NULL if coming from the internal + * beacon update routine. */ - if (conf->type != IEEE80211_IF_TYPE_AP) + if (conf->changed & IEEE80211_IFCC_BSSID && conf->bssid) { + update_bssid = 1; memcpy(&intf->bssid, conf->bssid, ETH_ALEN); + } spin_unlock(&intf->lock); @@ -370,19 +390,14 @@ int rt2x00mac_config_interface(struct ieee80211_hw *hw, * values as arguments we make keep access to rt2x00_intf thread safe * even without the lock. */ - rt2x00lib_config_intf(rt2x00dev, intf, conf->type, NULL, conf->bssid); + rt2x00lib_config_intf(rt2x00dev, intf, vif->type, NULL, + update_bssid ? conf->bssid : NULL); /* - * We only need to initialize the beacon when master mode is enabled. + * Update the beacon. */ - if (conf->type != IEEE80211_IF_TYPE_AP || !conf->beacon) - return 0; - - status = rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw, - conf->beacon, - conf->beacon_control); - if (status) - dev_kfree_skb(conf->beacon); + if (conf->changed & IEEE80211_IFCC_BEACON) + status = rt2x00queue_update_beacon(rt2x00dev, vif); return status; } @@ -428,7 +443,7 @@ void rt2x00mac_configure_filter(struct ieee80211_hw *hw, if (!test_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags)) rt2x00dev->ops->lib->config_filter(rt2x00dev, *total_flags); else - queue_work(rt2x00dev->workqueue, &rt2x00dev->filter_work); + queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work); } EXPORT_SYMBOL_GPL(rt2x00mac_configure_filter); @@ -454,10 +469,10 @@ int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw, struct rt2x00_dev *rt2x00dev = hw->priv; unsigned int i; - for (i = 0; i < hw->queues; i++) { - stats->data[i].len = rt2x00dev->tx[i].length; - stats->data[i].limit = rt2x00dev->tx[i].limit; - stats->data[i].count = rt2x00dev->tx[i].count; + for (i = 0; i < rt2x00dev->ops->tx_queues; i++) { + stats[i].len = rt2x00dev->tx[i].length; + stats[i].limit = rt2x00dev->tx[i].limit; + stats[i].count = rt2x00dev->tx[i].count; } return 0; @@ -498,7 +513,7 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, * When the erp information has changed, we should perform * additional configuration steps. For all other changes we are done. */ - if (changes & BSS_CHANGED_ERP_PREAMBLE) { + if (changes & (BSS_CHANGED_ERP_PREAMBLE | BSS_CHANGED_ERP_CTS_PROT)) { if (!test_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags)) rt2x00lib_config_erp(rt2x00dev, intf, bss_conf); else @@ -509,13 +524,13 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, memcpy(&intf->conf, bss_conf, sizeof(*bss_conf)); if (delayed) { intf->delayed_flags |= delayed; - queue_work(rt2x00dev->workqueue, &rt2x00dev->intf_work); + schedule_work(&rt2x00dev->intf_work); } spin_unlock(&intf->lock); } EXPORT_SYMBOL_GPL(rt2x00mac_bss_info_changed); -int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue_idx, +int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue_idx, const struct ieee80211_tx_queue_params *params) { struct rt2x00_dev *rt2x00dev = hw->priv; @@ -539,10 +554,7 @@ int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue_idx, else queue->cw_max = 10; /* cw_min: 2^10 = 1024. */ - if (params->aifs >= 0) - queue->aifs = params->aifs; - else - queue->aifs = 2; + queue->aifs = params->aifs; INFO(rt2x00dev, "Configured TX queue %d - CWmin: %d, CWmax: %d, Aifs: %d.\n", |