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mac80211: Start implementing QoS support for mesh interfaces 

In order to support QoS in mesh, we need to assign queue mapping only
after the next hop has been resolved, both for forwarded and locally
originated frames.  Also, now that this is fixed, remove the XXX comment
in ieee80211_select_queue().

Also, V-Shy Ho reported that the queue mapping was not being applied to
the forwarded frame (fwd_skb instead of skb).  Fixed that as well.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Javier Cardona 2011-09-07 17:49:52 -07:00 committed by John W. Linville
parent 3de3d96600
commit 4777be4163
4 changed files with 14 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/mac80211/mesh_pathtbl.c
View File

@ -14,6 +14,7 @@
#include <linux/spinlock.h>
#include <linux/string.h>
#include <net/mac80211.h>
#include "wme.h"
#include "ieee80211_i.h"
#include "mesh.h"
@ -212,6 +213,7 @@ void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta)
struct ieee80211_hdr *hdr;
struct sk_buff_head tmpq;
unsigned long flags;
struct ieee80211_sub_if_data *sdata = mpath->sdata;
rcu_assign_pointer(mpath->next_hop, sta);
@ -222,6 +224,8 @@ void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta)
while ((skb = __skb_dequeue(&mpath->frame_queue)) != NULL) {
hdr = (struct ieee80211_hdr *) skb->data;
memcpy(hdr->addr1, sta->sta.addr, ETH_ALEN);
skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, skb));
ieee80211_set_qos_hdr(sdata->local, skb);
__skb_queue_tail(&tmpq, skb);
}

10
net/mac80211/rx.c
View File

@ -1905,13 +1905,13 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
memset(info, 0, sizeof(*info));
info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
info->control.vif = &rx->sdata->vif;
skb_set_queue_mapping(skb,
ieee80211_select_queue(rx->sdata, fwd_skb));
ieee80211_set_qos_hdr(local, skb);
if (is_multicast_ether_addr(fwd_hdr->addr1))
if (is_multicast_ether_addr(fwd_hdr->addr1)) {
IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
fwded_mcast);
else {
skb_set_queue_mapping(fwd_skb,
ieee80211_select_queue(sdata, fwd_skb));
ieee80211_set_qos_hdr(local, fwd_skb);
} else {
int err;
/*
* Save TA to addr1 to send TA a path error if a

4
net/mac80211/tx.c
View File

@ -1879,6 +1879,10 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
rcu_read_unlock();
}
/* For mesh, the use of the QoS header is mandatory */
if (ieee80211_vif_is_mesh(&sdata->vif))
sta_flags |= WLAN_STA_WME;
/* receiver and we are QoS enabled, use a QoS type frame */
if ((sta_flags & WLAN_STA_WME) && local->hw.queues >= 4) {
fc |= cpu_to_le16(IEEE80211_STYPE_QOS_DATA);

6
net/mac80211/wme.c
View File

@ -83,11 +83,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
/*
* XXX: This is clearly broken ... but already was before,
* because ieee80211_fill_mesh_addresses() would clear A1
* except for multicast addresses.
*/
ra = skb->data;
break;
#endif
case NL80211_IFTYPE_STATION: