summaryrefslogtreecommitdiff
path: root/net/mac80211/link.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211/link.c')
-rw-r--r--net/mac80211/link.c61
1 files changed, 40 insertions, 21 deletions
diff --git a/net/mac80211/link.c b/net/mac80211/link.c
index e82db88a47f8..6148208b320e 100644
--- a/net/mac80211/link.c
+++ b/net/mac80211/link.c
@@ -2,7 +2,7 @@
/*
* MLO link handling
*
- * Copyright (C) 2022 Intel Corporation
+ * Copyright (C) 2022-2023 Intel Corporation
*/
#include <linux/slab.h>
#include <linux/kernel.h>
@@ -142,25 +142,34 @@ static int ieee80211_check_dup_link_addrs(struct ieee80211_sub_if_data *sdata)
}
static void ieee80211_set_vif_links_bitmaps(struct ieee80211_sub_if_data *sdata,
- u16 links)
+ u16 valid_links, u16 dormant_links)
{
- sdata->vif.valid_links = links;
-
- if (!links) {
+ sdata->vif.valid_links = valid_links;
+ sdata->vif.dormant_links = dormant_links;
+
+ if (!valid_links ||
+ WARN((~valid_links & dormant_links) ||
+ !(valid_links & ~dormant_links),
+ "Invalid links: valid=0x%x, dormant=0x%x",
+ valid_links, dormant_links)) {
sdata->vif.active_links = 0;
+ sdata->vif.dormant_links = 0;
return;
}
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
/* in an AP all links are always active */
- sdata->vif.active_links = links;
+ sdata->vif.active_links = valid_links;
+
+ /* AP links are not expected to be disabled */
+ WARN_ON(dormant_links);
break;
case NL80211_IFTYPE_STATION:
if (sdata->vif.active_links)
break;
- WARN_ON(hweight16(links) > 1);
- sdata->vif.active_links = links;
+ sdata->vif.active_links = valid_links & ~dormant_links;
+ WARN_ON(hweight16(sdata->vif.active_links) > 1);
break;
default:
WARN_ON(1);
@@ -169,7 +178,7 @@ static void ieee80211_set_vif_links_bitmaps(struct ieee80211_sub_if_data *sdata,
static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata,
struct link_container **to_free,
- u16 new_links)
+ u16 new_links, u16 dormant_links)
{
u16 old_links = sdata->vif.valid_links;
u16 old_active = sdata->vif.active_links;
@@ -245,7 +254,7 @@ static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata,
/* for keys we will not be able to undo this */
ieee80211_tear_down_links(sdata, to_free, rem);
- ieee80211_set_vif_links_bitmaps(sdata, new_links);
+ ieee80211_set_vif_links_bitmaps(sdata, new_links, dormant_links);
/* tell the driver */
ret = drv_change_vif_links(sdata->local, sdata,
@@ -258,7 +267,7 @@ static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata,
/* restore config */
memcpy(sdata->link, old_data, sizeof(old_data));
memcpy(sdata->vif.link_conf, old, sizeof(old));
- ieee80211_set_vif_links_bitmaps(sdata, old_links);
+ ieee80211_set_vif_links_bitmaps(sdata, old_links, dormant_links);
/* and free (only) the newly allocated links */
memset(to_free, 0, sizeof(links));
goto free;
@@ -282,12 +291,13 @@ deinit:
}
int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
- u16 new_links)
+ u16 new_links, u16 dormant_links)
{
struct link_container *links[IEEE80211_MLD_MAX_NUM_LINKS];
int ret;
- ret = ieee80211_vif_update_links(sdata, links, new_links);
+ ret = ieee80211_vif_update_links(sdata, links, new_links,
+ dormant_links);
ieee80211_free_links(sdata, links);
return ret;
@@ -304,7 +314,7 @@ void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata)
*/
sdata_lock(sdata);
- ieee80211_vif_update_links(sdata, links, 0);
+ ieee80211_vif_update_links(sdata, links, 0, 0);
sdata_unlock(sdata);
ieee80211_free_links(sdata, links);
@@ -328,8 +338,7 @@ static int _ieee80211_set_active_links(struct ieee80211_sub_if_data *sdata,
if (sdata->vif.type != NL80211_IFTYPE_STATION)
return -EINVAL;
- /* cannot activate links that don't exist */
- if (active_links & ~sdata->vif.valid_links)
+ if (active_links & ~ieee80211_vif_usable_links(&sdata->vif))
return -EINVAL;
/* nothing to do */
@@ -409,6 +418,7 @@ static int _ieee80211_set_active_links(struct ieee80211_sub_if_data *sdata,
IEEE80211_CHANCTX_SHARED);
WARN_ON_ONCE(ret);
+ ieee80211_mgd_set_link_qos_params(link);
ieee80211_link_info_change_notify(sdata, link,
BSS_CHANGED_ERP_CTS_PROT |
BSS_CHANGED_ERP_PREAMBLE |
@@ -423,7 +433,6 @@ static int _ieee80211_set_active_links(struct ieee80211_sub_if_data *sdata,
BSS_CHANGED_TWT |
BSS_CHANGED_HE_OBSS_PD |
BSS_CHANGED_HE_BSS_COLOR);
- ieee80211_mgd_set_link_qos_params(link);
}
old_active = sdata->vif.active_links;
@@ -438,14 +447,14 @@ static int _ieee80211_set_active_links(struct ieee80211_sub_if_data *sdata,
return 0;
}
-int ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links)
+int __ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_local *local = sdata->local;
u16 old_active;
int ret;
- sdata_lock(sdata);
+ sdata_assert_lock(sdata);
mutex_lock(&local->sta_mtx);
mutex_lock(&local->mtx);
mutex_lock(&local->key_mtx);
@@ -467,6 +476,17 @@ int ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links)
mutex_unlock(&local->key_mtx);
mutex_unlock(&local->mtx);
mutex_unlock(&local->sta_mtx);
+
+ return ret;
+}
+
+int ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ int ret;
+
+ sdata_lock(sdata);
+ ret = __ieee80211_set_active_links(vif, active_links);
sdata_unlock(sdata);
return ret;
@@ -484,8 +504,7 @@ void ieee80211_set_active_links_async(struct ieee80211_vif *vif,
if (sdata->vif.type != NL80211_IFTYPE_STATION)
return;
- /* cannot activate links that don't exist */
- if (active_links & ~sdata->vif.valid_links)
+ if (active_links & ~ieee80211_vif_usable_links(&sdata->vif))
return;
/* nothing to do */
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-18 10:47:20 +0300