{nl,cfg,mac}80211: let userspace set RANN interval
Allow userspace to set Root Announcement Interval for our mesh
interface. Also, RANN interval is now in proper units of TUs.
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 89dec16..20353bb 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -1861,6 +1861,9 @@
* @NL80211_MESHCONF_ELEMENT_TTL: specifies the value of TTL field set at a
* source mesh point for path selection elements.
*
+ * @NL80211_MESHCONF_HWMP_RANN_INTERVAL: The interval of time (in TUs) between
+ * root announcements are transmitted.
+ *
* @NL80211_MESHCONF_ATTR_MAX: highest possible mesh configuration attribute
*
* @__NL80211_MESHCONF_ATTR_AFTER_LAST: internal use
@@ -1882,6 +1885,7 @@
NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
NL80211_MESHCONF_HWMP_ROOTMODE,
NL80211_MESHCONF_ELEMENT_TTL,
+ NL80211_MESHCONF_HWMP_RANN_INTERVAL,
/* keep last */
__NL80211_MESHCONF_ATTR_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index d29d11a..4f0d12e 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -755,6 +755,7 @@
u16 dot11MeshHWMPpreqMinInterval;
u16 dot11MeshHWMPnetDiameterTraversalTime;
u8 dot11MeshHWMPRootMode;
+ u16 dot11MeshHWMPRannInterval;
};
/**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index c1fa577..9995c83 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1137,6 +1137,10 @@
conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
ieee80211_mesh_root_setup(ifmsh);
}
+ if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) {
+ conf->dot11MeshHWMPRannInterval =
+ nconf->dot11MeshHWMPRannInterval;
+ }
return 0;
}
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 75ece3d..bac9443 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -372,6 +372,8 @@
u.mesh.mshcfg.min_discovery_timeout, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
+IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
+ u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
#endif
@@ -486,6 +488,7 @@
MESHPARAMS_ADD(path_refresh_time);
MESHPARAMS_ADD(min_discovery_timeout);
MESHPARAMS_ADD(dot11MeshHWMPRootMode);
+ MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
#undef MESHPARAMS_ADD
}
#endif
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index e120fef..1c4f53c 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -537,7 +537,8 @@
mesh_path_tx_root_frame(sdata);
mod_timer(&ifmsh->mesh_path_root_timer,
- round_jiffies(jiffies + IEEE80211_MESH_RANN_INTERVAL));
+ round_jiffies(jiffies +
+ usecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPRannInterval * 1024)));
}
#ifdef CONFIG_PM
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 9d9116e..2027207 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -175,7 +175,6 @@
#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
#define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
-#define IEEE80211_MESH_RANN_INTERVAL (1 * HZ)
#define MESH_DEFAULT_BEACON_INTERVAL 1000 /* in 1024 us units */
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 7b517c4..ae3de75 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -695,7 +695,7 @@
u8 ttl, flags, hopcount;
u8 *orig_addr;
u32 orig_sn, metric;
- u32 interval = cpu_to_le32(IEEE80211_MESH_RANN_INTERVAL);
+ u32 interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval;
bool root_is_gate;
ttl = rann->rann_ttl;
@@ -743,7 +743,7 @@
mesh_path_sel_frame_tx(MPATH_RANN, flags, orig_addr,
cpu_to_le32(orig_sn),
0, NULL, 0, broadcast_addr,
- hopcount, ttl, interval,
+ hopcount, ttl, cpu_to_le32(interval),
cpu_to_le32(metric + mpath->metric),
0, sdata);
mpath->sn = orig_sn;
@@ -1044,11 +1044,11 @@
mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
- u32 interval = cpu_to_le32(IEEE80211_MESH_RANN_INTERVAL);
+ u32 interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval;
mesh_path_sel_frame_tx(MPATH_RANN, 0, sdata->vif.addr,
cpu_to_le32(++ifmsh->sn),
0, NULL, 0, broadcast_addr,
0, sdata->u.mesh.mshcfg.element_ttl,
- interval, 0, 0, sdata);
+ cpu_to_le32(interval), 0, 0, sdata);
}
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 5c11608..b5a39d4 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -12,6 +12,7 @@
#define MESH_HOLD_T 100
#define MESH_PATH_TIMEOUT 5000
+#define MESH_RANN_INTERVAL 5000
/*
* Minimum interval between two consecutive PREQs originated by the same
@@ -49,6 +50,7 @@
.dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES,
.path_refresh_time = MESH_PATH_REFRESH_TIME,
.min_discovery_timeout = MESH_MIN_DISCOVERY_TIMEOUT,
+ .dot11MeshHWMPRannInterval = MESH_RANN_INTERVAL,
};
const struct mesh_setup default_mesh_setup = {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 93ee888..bbf3d73 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3035,6 +3035,8 @@
cur_params.dot11MeshHWMPnetDiameterTraversalTime);
NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
cur_params.dot11MeshHWMPRootMode);
+ NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
+ cur_params.dot11MeshHWMPRannInterval);
nla_nest_end(msg, pinfoattr);
genlmsg_end(msg, hdr);
return genlmsg_reply(msg, info);
@@ -3063,6 +3065,7 @@
[NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
[NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
[NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
+ [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
};
static const struct nla_policy
@@ -3141,6 +3144,10 @@
dot11MeshHWMPRootMode, mask,
NL80211_MESHCONF_HWMP_ROOTMODE,
nla_get_u8);
+ FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
+ dot11MeshHWMPRannInterval, mask,
+ NL80211_MESHCONF_HWMP_RANN_INTERVAL,
+ nla_get_u16);
if (mask_out)
*mask_out = mask;