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authorThomas Pedersen <thomas@cozybit.com>2011-11-25 05:15:24 +0400
committerJohn W. Linville <linville@tuxdriver.com>2011-11-28 23:44:06 +0400
commitdca7e9430cb3e492437a5ce891b8b3e315c147ca (patch)
treea7503e86e20e649074bbaccd5272d61a51425e2e /net
parentd3c1597b8d1ba0447ce858c7c385eabcf69f2c8f (diff)
downloadlinux-dca7e9430cb3e492437a5ce891b8b3e315c147ca.tar.xz
{nl,cfg,mac}80211: implement dot11MeshHWMPperrMinInterval
As per 802.11mb 13.9.11.3 Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/cfg.c3
-rw-r--r--net/mac80211/debugfs_netdev.c3
-rw-r--r--net/mac80211/ieee80211_i.h4
-rw-r--r--net/mac80211/mesh.c1
-rw-r--r--net/mac80211/mesh_hwmp.c6
-rw-r--r--net/wireless/mesh.c2
-rw-r--r--net/wireless/nl80211.c6
7 files changed, 24 insertions, 1 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7ccba83dc8c8..393b2a4445b8 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1272,6 +1272,9 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
conf->dot11MeshHWMPpreqMinInterval =
nconf->dot11MeshHWMPpreqMinInterval;
+ if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
+ conf->dot11MeshHWMPperrMinInterval =
+ nconf->dot11MeshHWMPperrMinInterval;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
mask))
conf->dot11MeshHWMPnetDiameterTraversalTime =
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 9352819a986b..8df28910b8ee 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -405,6 +405,8 @@ IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
+IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
+ u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
@@ -534,6 +536,7 @@ static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
+ MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
MESHPARAMS_ADD(path_refresh_time);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 7a757a97ba37..a785d61defe1 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -514,7 +514,9 @@ struct ieee80211_if_mesh {
atomic_t mpaths;
/* Timestamp of last SN update */
unsigned long last_sn_update;
- /* Timestamp of last SN sent */
+ /* Time when it's ok to send next PERR */
+ unsigned long next_perr;
+ /* Timestamp of last PREQ sent */
unsigned long last_preq;
struct mesh_rmc *rmc;
spinlock_t mesh_preq_queue_lock;
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index ee82d2f7f114..c707c8bf6d2c 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -749,6 +749,7 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
atomic_set(&ifmsh->mpaths, 0);
mesh_rmc_init(sdata);
ifmsh->last_preq = jiffies;
+ ifmsh->next_perr = jiffies;
/* Allocate all mesh structures when creating the first mesh interface. */
if (!mesh_allocated)
ieee80211s_init();
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 208ba35661f9..fe93386d6aa9 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -241,11 +241,15 @@ int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn,
{
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct ieee80211_mgmt *mgmt;
u8 *pos, ie_len;
int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.mesh_action) +
sizeof(mgmt->u.action.u.mesh_action);
+ if (time_before(jiffies, ifmsh->next_perr))
+ return -EAGAIN;
+
skb = dev_alloc_skb(local->hw.extra_tx_headroom +
hdr_len +
2 + 15 /* PERR IE */);
@@ -290,6 +294,8 @@ int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn,
/* see note in function header */
prepare_frame_for_deferred_tx(sdata, skb);
+ ifmsh->next_perr = TU_TO_EXP_TIME(
+ ifmsh->mshcfg.dot11MeshHWMPperrMinInterval);
ieee80211_add_pending_skb(local, skb);
return 0;
}
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index b7b7868f4128..8c550df13037 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -20,6 +20,7 @@
* interface
*/
#define MESH_PREQ_MIN_INT 10
+#define MESH_PERR_MIN_INT 100
#define MESH_DIAM_TRAVERSAL_TIME 50
/*
@@ -47,6 +48,7 @@ const struct mesh_config default_mesh_config = {
.dot11MeshMaxPeerLinks = MESH_MAX_ESTAB_PLINKS,
.dot11MeshHWMPactivePathTimeout = MESH_PATH_TIMEOUT,
.dot11MeshHWMPpreqMinInterval = MESH_PREQ_MIN_INT,
+ .dot11MeshHWMPperrMinInterval = MESH_PERR_MIN_INT,
.dot11MeshHWMPnetDiameterTraversalTime = MESH_DIAM_TRAVERSAL_TIME,
.dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES,
.path_refresh_time = MESH_PATH_REFRESH_TIME,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 5699c3b1aba4..0ee512b85a1f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3195,6 +3195,8 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
cur_params.dot11MeshHWMPactivePathTimeout);
NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
cur_params.dot11MeshHWMPpreqMinInterval);
+ NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
+ cur_params.dot11MeshHWMPperrMinInterval);
NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
cur_params.dot11MeshHWMPnetDiameterTraversalTime);
NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
@@ -3229,6 +3231,7 @@ static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_A
[NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
[NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
[NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
+ [NL80211_MESHCONF_HWMP_PERR_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 },
@@ -3303,6 +3306,9 @@ do {\
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
nla_get_u16);
+ FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
+ mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
+ nla_get_u16);
FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
dot11MeshHWMPnetDiameterTraversalTime,
mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,