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mac80211: fix mesh fast xmit header cache flush

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split into multiple functions depending on sta, mpath or mpp

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau
2023-02-23 15:06:14 +01:00
parent 888b207f1a
commit 1d82a47b49
1 changed files with 161 additions and 73 deletions
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234
package/kernel/mac80211/patches/subsys/319-wifi-mac80211-mesh-fast-xmit-support.patch
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@@ -132,7 +132,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ u16 hdrlen; + u16 hdrlen;
+ u8 pn_offs; + u8 pn_offs;
+ u8 band; + u8 band;
+ struct ieee80211_key __rcu *key; + struct ieee80211_key *key;
+ struct hlist_node walk_list; + struct hlist_node walk_list;
+ struct rhash_head rhash; + struct rhash_head rhash;
+ struct mesh_path *mpath, *mppath; + struct mesh_path *mpath, *mppath;
@@ -143,7 +143,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
/* Recent multicast cache */ /* Recent multicast cache */
/* RMC_BUCKETS must be a power of 2, maximum 256 */ /* RMC_BUCKETS must be a power of 2, maximum 256 */
#define RMC_BUCKETS 256 #define RMC_BUCKETS 256
@@ -298,6 +336,15 @@ void mesh_path_discard_frame(struct ieee @@ -298,6 +336,18 @@ void mesh_path_discard_frame(struct ieee
void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata); void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata);
bool mesh_action_is_path_sel(struct ieee80211_mgmt *mgmt); bool mesh_action_is_path_sel(struct ieee80211_mgmt *mgmt);
@@ -152,8 +152,11 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+void mesh_cache_hdr(struct ieee80211_sub_if_data *sdata, +void mesh_cache_hdr(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb, struct mesh_path *mpath); + struct sk_buff *skb, struct mesh_path *mpath);
+void mesh_hdr_cache_gc(struct ieee80211_sub_if_data *sdata); +void mesh_hdr_cache_gc(struct ieee80211_sub_if_data *sdata);
+void mesh_hdr_cache_flush(struct ieee80211_sub_if_data *sdata, const u8 *addr, +void mesh_hdr_cache_flush_mpp(struct ieee80211_sub_if_data *sdata,
+ bool is_mpp); + const u8 *addr);
+void mesh_hdr_cache_flush_mpath(struct mesh_path *mpath);
+void mesh_hdr_cache_flush_sta(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta);
+void mesh_refresh_path(struct ieee80211_sub_if_data *sdata, +void mesh_refresh_path(struct ieee80211_sub_if_data *sdata,
+ struct mesh_path *mpath, const u8 *addr); + struct mesh_path *mpath, const u8 *addr);
@@ -161,33 +164,57 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
static inline static inline
--- a/net/mac80211/mesh_hwmp.c --- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c
@@ -491,8 +491,11 @@ static u32 hwmp_route_info_get(struct ie @@ -394,6 +394,7 @@ static u32 hwmp_route_info_get(struct ie
u32 orig_sn, orig_metric;
unsigned long orig_lifetime, exp_time;
u32 last_hop_metric, new_metric;
+ bool flush_mpath = false;
bool process = true;
u8 hopcount;
@@ -491,8 +492,10 @@ static u32 hwmp_route_info_get(struct ie
} }
if (fresh_info) { if (fresh_info) {
- if (rcu_access_pointer(mpath->next_hop) != sta) - if (rcu_access_pointer(mpath->next_hop) != sta)
+ if (rcu_access_pointer(mpath->next_hop) != sta) { + if (rcu_access_pointer(mpath->next_hop) != sta) {
mpath->path_change_count++; mpath->path_change_count++;
+ mesh_hdr_cache_flush(mpath->sdata, mpath->dst, + flush_mpath = true;
+ false);
+ } + }
mesh_path_assign_nexthop(mpath, sta); mesh_path_assign_nexthop(mpath, sta);
mpath->flags |= MESH_PATH_SN_VALID; mpath->flags |= MESH_PATH_SN_VALID;
mpath->metric = new_metric; mpath->metric = new_metric;
@@ -539,8 +542,11 @@ static u32 hwmp_route_info_get(struct ie @@ -502,6 +505,8 @@ static u32 hwmp_route_info_get(struct ie
mpath->hop_count = hopcount;
mesh_path_activate(mpath);
spin_unlock_bh(&mpath->state_lock);
+ if (flush_mpath)
+ mesh_hdr_cache_flush_mpath(mpath);
ewma_mesh_fail_avg_init(&sta->mesh->fail_avg);
/* init it at a low value - 0 start is tricky */
ewma_mesh_fail_avg_add(&sta->mesh->fail_avg, 1);
@@ -539,8 +544,10 @@ static u32 hwmp_route_info_get(struct ie
} }
if (fresh_info) { if (fresh_info) {
- if (rcu_access_pointer(mpath->next_hop) != sta) - if (rcu_access_pointer(mpath->next_hop) != sta)
+ if (rcu_access_pointer(mpath->next_hop) != sta) { + if (rcu_access_pointer(mpath->next_hop) != sta) {
mpath->path_change_count++; mpath->path_change_count++;
+ mesh_hdr_cache_flush(mpath->sdata, mpath->dst, + flush_mpath = true;
+ false);
+ } + }
mesh_path_assign_nexthop(mpath, sta); mesh_path_assign_nexthop(mpath, sta);
mpath->metric = last_hop_metric; mpath->metric = last_hop_metric;
mpath->exp_time = time_after(mpath->exp_time, exp_time) mpath->exp_time = time_after(mpath->exp_time, exp_time)
@@ -977,7 +983,7 @@ free: @@ -548,6 +555,8 @@ static u32 hwmp_route_info_get(struct ie
mpath->hop_count = 1;
mesh_path_activate(mpath);
spin_unlock_bh(&mpath->state_lock);
+ if (flush_mpath)
+ mesh_hdr_cache_flush_mpath(mpath);
ewma_mesh_fail_avg_init(&sta->mesh->fail_avg);
/* init it at a low value - 0 start is tricky */
ewma_mesh_fail_avg_add(&sta->mesh->fail_avg, 1);
@@ -977,7 +986,7 @@ free:
* Locking: the function must be called from within a rcu read lock block. * Locking: the function must be called from within a rcu read lock block.
* *
*/ */
@@ -196,7 +223,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
{ {
struct ieee80211_sub_if_data *sdata = mpath->sdata; struct ieee80211_sub_if_data *sdata = mpath->sdata;
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
@@ -1215,6 +1221,20 @@ static int mesh_nexthop_lookup_nolearn(s @@ -1215,6 +1224,20 @@ static int mesh_nexthop_lookup_nolearn(s
return 0; return 0;
} }
@@ -217,7 +244,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
/** /**
* mesh_nexthop_lookup - put the appropriate next hop on a mesh frame. Calling * mesh_nexthop_lookup - put the appropriate next hop on a mesh frame. Calling
* this function is considered "using" the associated mpath, so preempt a path * this function is considered "using" the associated mpath, so preempt a path
@@ -1242,19 +1262,18 @@ int mesh_nexthop_lookup(struct ieee80211 @@ -1242,19 +1265,18 @@ int mesh_nexthop_lookup(struct ieee80211
if (!mpath || !(mpath->flags & MESH_PATH_ACTIVE)) if (!mpath || !(mpath->flags & MESH_PATH_ACTIVE))
return -ENOENT; return -ENOENT;
@@ -295,14 +322,21 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
static inline bool mpath_expired(struct mesh_path *mpath) static inline bool mpath_expired(struct mesh_path *mpath)
{ {
return (mpath->flags & MESH_PATH_ACTIVE) && return (mpath->flags & MESH_PATH_ACTIVE) &&
@@ -381,6 +417,211 @@ struct mesh_path *mesh_path_new(struct i @@ -381,6 +417,254 @@ struct mesh_path *mesh_path_new(struct i
return new_mpath; return new_mpath;
} }
+static void mesh_hdr_cache_entry_free(struct mesh_hdr_cache *cache,
+ struct mhdr_cache_entry *entry)
+{
+ hlist_del_rcu(&entry->walk_list);
+ rhashtable_remove_fast(&cache->rhead, &entry->rhash, mesh_hdr_rht_params);
+ kfree_rcu(entry, rcu);
+}
+
+struct mhdr_cache_entry * +struct mhdr_cache_entry *
+mesh_get_cached_hdr(struct ieee80211_sub_if_data *sdata, const u8 *addr) +mesh_get_cached_hdr(struct ieee80211_sub_if_data *sdata, const u8 *addr)
+{ +{
+ struct mesh_path *mpath, *mppath;
+ struct mhdr_cache_entry *entry; + struct mhdr_cache_entry *entry;
+ struct mesh_hdr_cache *cache; + struct mesh_hdr_cache *cache;
+ +
@@ -311,14 +345,19 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (!entry) + if (!entry)
+ return NULL; + return NULL;
+ +
+ mpath = rcu_dereference(entry->mpath); + if (!(entry->mpath->flags & MESH_PATH_ACTIVE) ||
+ mppath = rcu_dereference(entry->mppath); + mpath_expired(entry->mpath)) {
+ if (!(mpath->flags & MESH_PATH_ACTIVE) || mpath_expired(mpath)) + spin_lock_bh(&cache->walk_lock);
+ entry = rhashtable_lookup(&cache->rhead, addr, mesh_hdr_rht_params);
+ if (entry)
+ mesh_hdr_cache_entry_free(cache, entry);
+ spin_unlock_bh(&cache->walk_lock);
+ return NULL; + return NULL;
+ }
+ +
+ mesh_refresh_path(sdata, mpath, NULL); + mesh_refresh_path(sdata, entry->mpath, NULL);
+ if (mppath) + if (entry->mppath)
+ mppath->exp_time = jiffies; + entry->mppath->exp_time = jiffies;
+ entry->timestamp = jiffies; + entry->timestamp = jiffies;
+ +
+ return entry; + return entry;
@@ -332,7 +371,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ struct mesh_hdr_cache *cache; + struct mesh_hdr_cache *cache;
+ struct mhdr_cache_entry *mhdr, *old_mhdr; + struct mhdr_cache_entry *mhdr, *old_mhdr;
+ struct ieee80211s_hdr *meshhdr; + struct ieee80211s_hdr *meshhdr;
+ struct sta_info *next_hop; + struct sta_info *sta;
+ struct ieee80211_key *key; + struct ieee80211_key *key;
+ struct mesh_path *mppath; + struct mesh_path *mppath;
+ u16 meshhdr_len; + u16 meshhdr_len;
@@ -353,8 +392,8 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (atomic_read(&cache->rhead.nelems) >= MESH_HEADER_CACHE_MAX_SIZE) + if (atomic_read(&cache->rhead.nelems) >= MESH_HEADER_CACHE_MAX_SIZE)
+ return; + return;
+ +
+ next_hop = rcu_dereference(mpath->next_hop); + sta = rcu_dereference(mpath->next_hop);
+ if (!next_hop) + if (!sta)
+ return; + return;
+ +
+ if ((meshhdr->flags & MESH_FLAGS_AE) == MESH_FLAGS_AE_A5_A6) { + if ((meshhdr->flags & MESH_FLAGS_AE) == MESH_FLAGS_AE_A5_A6) {
@@ -374,7 +413,12 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ +
+ mppath->fast_xmit_check = jiffies; + mppath->fast_xmit_check = jiffies;
+ +
+ key = rcu_access_pointer(next_hop->ptk[next_hop->ptk_idx]); + /*
+ * Same use of the sta lock as in ieee80211_check_fast_xmit, in order
+ * to protect against concurrent sta key updates.
+ */
+ spin_lock_bh(&sta->lock);
+ key = rcu_access_pointer(sta->ptk[sta->ptk_idx]);
+ if (!key) + if (!key)
+ key = rcu_access_pointer(sdata->default_unicast_key); + key = rcu_access_pointer(sdata->default_unicast_key);
+ +
@@ -386,7 +430,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ +
+ if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) || + if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) ||
+ (key->flags & KEY_FLAG_TAINTED)) + (key->flags & KEY_FLAG_TAINTED))
+ return; + goto unlock_sta;
+ +
+ switch (key->conf.cipher) { + switch (key->conf.cipher) {
+ case WLAN_CIPHER_SUITE_CCMP: + case WLAN_CIPHER_SUITE_CCMP:
@@ -404,25 +448,25 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ hdrlen += IEEE80211_GCMP_HDR_LEN; + hdrlen += IEEE80211_GCMP_HDR_LEN;
+ break; + break;
+ default: + default:
+ return; + goto unlock_sta;
+ } + }
+ } + }
+ +
+ if (WARN_ON_ONCE(hdrlen + meshhdr_len + sizeof(rfc1042_header) > + if (WARN_ON_ONCE(hdrlen + meshhdr_len + sizeof(rfc1042_header) >
+ MESH_HEADER_MAX_LEN)) + MESH_HEADER_MAX_LEN))
+ return; + goto unlock_sta;
+ +
+ mhdr = kzalloc(sizeof(*mhdr), GFP_ATOMIC); + mhdr = kzalloc(sizeof(*mhdr), GFP_ATOMIC);
+ if (!mhdr) + if (!mhdr)
+ return; + goto unlock_sta;
+ +
+ memcpy(mhdr->addr_key, mppath->dst, ETH_ALEN); + memcpy(mhdr->addr_key, mppath->dst, ETH_ALEN);
+ mhdr->machdr_len = hdrlen; + mhdr->machdr_len = hdrlen;
+ mhdr->hdrlen = mhdr->machdr_len + meshhdr_len + sizeof(rfc1042_header); + mhdr->hdrlen = mhdr->machdr_len + meshhdr_len + sizeof(rfc1042_header);
+ rcu_assign_pointer(mhdr->mpath, mpath); + mhdr->mpath = mpath;
+ if (meshhdr->flags & MESH_FLAGS_AE) + if (meshhdr->flags & MESH_FLAGS_AE)
+ rcu_assign_pointer(mhdr->mppath, mppath); + mhdr->mppath = mppath;
+ rcu_assign_pointer(mhdr->key, key); + mhdr->key = key;
+ mhdr->timestamp = jiffies; + mhdr->timestamp = jiffies;
+ mhdr->band = info->band; + mhdr->band = info->band;
+ mhdr->pn_offs = pn_offs; + mhdr->pn_offs = pn_offs;
@@ -444,19 +488,28 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ old_mhdr = rhashtable_lookup_get_insert_fast(&cache->rhead, + old_mhdr = rhashtable_lookup_get_insert_fast(&cache->rhead,
+ &mhdr->rhash, + &mhdr->rhash,
+ mesh_hdr_rht_params); + mesh_hdr_rht_params);
+ if (likely(!old_mhdr)) + if (unlikely(IS_ERR(old_mhdr))) {
+ hlist_add_head(&mhdr->walk_list, &cache->walk_head);
+ else
+ kfree(mhdr); + kfree(mhdr);
+ spin_unlock_bh(&cache->walk_lock); + goto unlock_cache;
+} + }
+ +
+static void mesh_hdr_cache_entry_free(struct mesh_hdr_cache *cache, + /*
+ struct mhdr_cache_entry *entry) + * replace any previous entry in the hash table, in case we're
+{ + * replacing it with a different type (e.g. mpath -> mpp)
+ hlist_del_rcu(&entry->walk_list); + */
+ rhashtable_remove_fast(&cache->rhead, &entry->rhash, mesh_hdr_rht_params); + if (unlikely(old_mhdr)) {
+ kfree_rcu(entry, rcu); + rhashtable_replace_fast(&cache->rhead, &old_mhdr->rhash,
+ &mhdr->rhash, mesh_hdr_rht_params);
+ hlist_del_rcu(&old_mhdr->walk_list);
+ kfree_rcu(old_mhdr, rcu);
+ }
+
+ hlist_add_head(&mhdr->walk_list, &cache->walk_head);
+
+unlock_cache:
+ spin_unlock_bh(&cache->walk_lock);
+unlock_sta:
+ spin_unlock_bh(&sta->lock);
+} +}
+ +
+void mesh_hdr_cache_gc(struct ieee80211_sub_if_data *sdata) +void mesh_hdr_cache_gc(struct ieee80211_sub_if_data *sdata)
@@ -477,8 +530,23 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ spin_unlock_bh(&cache->walk_lock); + spin_unlock_bh(&cache->walk_lock);
+} +}
+ +
+void mesh_hdr_cache_flush(struct ieee80211_sub_if_data *sdata, const u8 *addr, +void mesh_hdr_cache_flush_mpath(struct mesh_path *mpath)
+ bool is_mpp) +{
+ struct ieee80211_sub_if_data *sdata = mpath->sdata;
+ struct mesh_hdr_cache *cache = &sdata->u.mesh.hdr_cache;
+ struct mhdr_cache_entry *entry;
+ struct hlist_node *n;
+
+ cache = &sdata->u.mesh.hdr_cache;
+ spin_lock_bh(&cache->walk_lock);
+ hlist_for_each_entry_safe(entry, n, &cache->walk_head, walk_list)
+ if (entry->mpath == mpath)
+ mesh_hdr_cache_entry_free(cache, entry);
+ spin_unlock_bh(&cache->walk_lock);
+}
+
+void mesh_hdr_cache_flush_sta(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta)
+{ +{
+ struct mesh_hdr_cache *cache = &sdata->u.mesh.hdr_cache; + struct mesh_hdr_cache *cache = &sdata->u.mesh.hdr_cache;
+ struct mhdr_cache_entry *entry; + struct mhdr_cache_entry *entry;
@@ -486,45 +554,58 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ +
+ cache = &sdata->u.mesh.hdr_cache; + cache = &sdata->u.mesh.hdr_cache;
+ spin_lock_bh(&cache->walk_lock); + spin_lock_bh(&cache->walk_lock);
+
+ /* Only one header per mpp address is expected in the header cache */
+ if (is_mpp) {
+ entry = rhashtable_lookup(&cache->rhead, addr,
+ mesh_hdr_rht_params);
+ if (entry)
+ mesh_hdr_cache_entry_free(cache, entry);
+ goto out;
+ }
+
+ hlist_for_each_entry_safe(entry, n, &cache->walk_head, walk_list) + hlist_for_each_entry_safe(entry, n, &cache->walk_head, walk_list)
+ if (ether_addr_equal(entry->mpath->dst, addr)) + if (rcu_access_pointer(entry->mpath->next_hop) == sta)
+ mesh_hdr_cache_entry_free(cache, entry); + mesh_hdr_cache_entry_free(cache, entry);
+ spin_unlock_bh(&cache->walk_lock);
+}
+ +
+out: +void mesh_hdr_cache_flush_mpp(struct ieee80211_sub_if_data *sdata,
+ const u8 *addr)
+{
+ struct mesh_hdr_cache *cache = &sdata->u.mesh.hdr_cache;
+ struct mhdr_cache_entry *entry;
+
+ cache = &sdata->u.mesh.hdr_cache;
+ spin_lock_bh(&cache->walk_lock);
+ entry = rhashtable_lookup(&cache->rhead, addr, mesh_hdr_rht_params);
+ if (entry)
+ mesh_hdr_cache_entry_free(cache, entry);
+ spin_unlock_bh(&cache->walk_lock); + spin_unlock_bh(&cache->walk_lock);
+} +}
+ +
/** /**
* mesh_path_add - allocate and add a new path to the mesh path table * mesh_path_add - allocate and add a new path to the mesh path table
* @dst: destination address of the path (ETH_ALEN length) * @dst: destination address of the path (ETH_ALEN length)
@@ -521,6 +762,8 @@ static void mesh_path_free_rcu(struct me @@ -464,6 +748,8 @@ int mpp_path_add(struct ieee80211_sub_if
static void __mesh_path_del(struct mesh_table *tbl, struct mesh_path *mpath) if (ret)
kfree(new_mpath);
+ else
+ mesh_hdr_cache_flush_mpp(sdata, dst);
sdata->u.mesh.mpp_paths_generation++;
return ret;
@@ -523,6 +809,10 @@ static void __mesh_path_del(struct mesh_
{ {
+ mesh_hdr_cache_flush(mpath->sdata, mpath->dst,
+ tbl == &mpath->sdata->u.mesh.mpp_paths);
hlist_del_rcu(&mpath->walk_list); hlist_del_rcu(&mpath->walk_list);
rhashtable_remove_fast(&tbl->rhead, &mpath->rhash, mesh_rht_params); rhashtable_remove_fast(&tbl->rhead, &mpath->rhash, mesh_rht_params);
+ if (tbl == &mpath->sdata->u.mesh.mpp_paths)
+ mesh_hdr_cache_flush_mpp(mpath->sdata, mpath->dst);
+ else
+ mesh_hdr_cache_flush_mpath(mpath);
mesh_path_free_rcu(tbl, mpath); mesh_path_free_rcu(tbl, mpath);
@@ -747,6 +990,7 @@ void mesh_path_fix_nexthop(struct mesh_p }
@@ -747,6 +1037,7 @@ void mesh_path_fix_nexthop(struct mesh_p
mpath->exp_time = 0; mpath->exp_time = 0;
mpath->flags = MESH_PATH_FIXED | MESH_PATH_SN_VALID; mpath->flags = MESH_PATH_FIXED | MESH_PATH_SN_VALID;
mesh_path_activate(mpath); mesh_path_activate(mpath);
+ mesh_hdr_cache_flush(mpath->sdata, mpath->dst, false); + mesh_hdr_cache_flush_mpath(mpath);
spin_unlock_bh(&mpath->state_lock); spin_unlock_bh(&mpath->state_lock);
ewma_mesh_fail_avg_init(&next_hop->mesh->fail_avg); ewma_mesh_fail_avg_init(&next_hop->mesh->fail_avg);
/* init it at a low value - 0 start is tricky */ /* init it at a low value - 0 start is tricky */
@@ -758,6 +1002,7 @@ void mesh_pathtbl_init(struct ieee80211_ @@ -758,6 +1049,7 @@ void mesh_pathtbl_init(struct ieee80211_
{ {
mesh_table_init(&sdata->u.mesh.mesh_paths); mesh_table_init(&sdata->u.mesh.mesh_paths);
mesh_table_init(&sdata->u.mesh.mpp_paths); mesh_table_init(&sdata->u.mesh.mpp_paths);
@@ -532,7 +613,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
} }
static static
@@ -785,6 +1030,7 @@ void mesh_path_expire(struct ieee80211_s @@ -785,6 +1077,7 @@ void mesh_path_expire(struct ieee80211_s
void mesh_pathtbl_unregister(struct ieee80211_sub_if_data *sdata) void mesh_pathtbl_unregister(struct ieee80211_sub_if_data *sdata)
{ {
@@ -565,7 +646,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ +
+ /* flush fast xmit cache if the address path changed */ + /* flush fast xmit cache if the address path changed */
+ if (update) + if (update)
+ mesh_hdr_cache_flush(sdata, proxied_addr, true); + mesh_hdr_cache_flush_mpp(sdata, proxied_addr);
+ +
rcu_read_unlock(); rcu_read_unlock();
} }
@@ -577,12 +658,12 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
return; return;
+ if (ieee80211_vif_is_mesh(&sdata->vif)) + if (ieee80211_vif_is_mesh(&sdata->vif))
+ mesh_hdr_cache_flush(sdata, sta->addr, false); + mesh_hdr_cache_flush_sta(sdata, sta);
+ +
/* Locking here protects both the pointer itself, and against concurrent /* Locking here protects both the pointer itself, and against concurrent
* invocations winning data access races to, e.g., the key pointer that * invocations winning data access races to, e.g., the key pointer that
* is used. * is used.
@@ -3723,6 +3726,155 @@ free: @@ -3723,6 +3726,162 @@ free:
kfree_skb(skb); kfree_skb(skb);
} }
@@ -593,6 +674,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ struct ieee80211_local *local = sdata->local; + struct ieee80211_local *local = sdata->local;
+ struct ieee80211_tx_data tx = {}; + struct ieee80211_tx_data tx = {};
+ struct ieee80211_tx_info *info; + struct ieee80211_tx_info *info;
+ struct tid_ampdu_tx *tid_tx;
+ struct ieee80211_key *key; + struct ieee80211_key *key;
+ struct ieee80211_hdr *hdr; + struct ieee80211_hdr *hdr;
+ struct mesh_path *mpath; + struct mesh_path *mpath;
@@ -633,6 +715,12 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ hdr = (struct ieee80211_hdr *)skb->data; + hdr = (struct ieee80211_hdr *)skb->data;
+ tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK; + tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+ *ieee80211_get_qos_ctl(hdr) = tid; + *ieee80211_get_qos_ctl(hdr) = tid;
+ tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
+ if (tid_tx) {
+ if (tid_tx->timeout)
+ tid_tx->last_tx = jiffies;
+ info->flags |= IEEE80211_TX_CTL_AMPDU;
+ }
+ +
+ ieee80211_aggr_check(sdata, sta, skb); + ieee80211_aggr_check(sdata, sta, skb);
+ +
@@ -662,15 +750,15 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ bool copy_sa = false; + bool copy_sa = false;
+ u16 ethertype; + u16 ethertype;
+ +
+ if (!ieee80211_hw_check(&local->hw, SUPPORT_FAST_XMIT))
+ return false;
+
+ if (ctrl_flags & IEEE80211_TX_CTRL_SKIP_MPATH_LOOKUP) + if (ctrl_flags & IEEE80211_TX_CTRL_SKIP_MPATH_LOOKUP)
+ return false; + return false;
+ +
+ if (ifmsh->mshcfg.dot11MeshNolearn) + if (ifmsh->mshcfg.dot11MeshNolearn)
+ return false; + return false;
+ +
+ if (!ieee80211_hw_check(&local->hw, SUPPORT_FAST_XMIT))
+ return false;
+
+ /* Add support for these cases later */ + /* Add support for these cases later */
+ if (ifmsh->ps_peers_light_sleep || ifmsh->ps_peers_deep_sleep) + if (ifmsh->ps_peers_light_sleep || ifmsh->ps_peers_deep_sleep)
+ return false; + return false;
@@ -738,7 +826,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata, static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta, struct sta_info *sta,
struct ieee80211_fast_tx *fast_tx, struct ieee80211_fast_tx *fast_tx,
@@ -4244,8 +4396,14 @@ void __ieee80211_subif_start_xmit(struct @@ -4244,8 +4403,14 @@ void __ieee80211_subif_start_xmit(struct
return; return;
} }
@@ -753,7 +841,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
if (ieee80211_lookup_ra_sta(sdata, skb, &sta)) if (ieee80211_lookup_ra_sta(sdata, skb, &sta))
goto out_free; goto out_free;
@@ -4255,8 +4413,6 @@ void __ieee80211_subif_start_xmit(struct @@ -4255,8 +4420,6 @@ void __ieee80211_subif_start_xmit(struct
skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, sta, skb)); skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, sta, skb));
ieee80211_aggr_check(sdata, sta, skb); ieee80211_aggr_check(sdata, sta, skb);