Define enable_dynack API to enable ack timeout estimation algorithm through
nl80211
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@xxxxxxxxx>
---
include/net/cfg80211.h | 4 ++++
include/uapi/linux/nl80211.h | 5 +++++
net/wireless/nl80211.c | 7 +++++++
net/wireless/rdev-ops.h | 11 +++++++++++
net/wireless/trace.h | 5 +++++
5 files changed, 32 insertions(+)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 0a080c4..5a86922 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2313,6 +2313,8 @@ struct cfg80211_qos_map {
* @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
* given interface This is used e.g. for dynamic HT 20/40 MHz channel width
* changes during the lifetime of the BSS.
+ *
+ * @enable_dynack: Enable ack timeout estimation algorithm
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -2553,6 +2555,8 @@ struct cfg80211_ops {
int (*set_ap_chanwidth)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_chan_def *chandef);
+
+ int (*enable_dynack)(struct wiphy *wiphy);
};
/*
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index f1db15b..7cc5ecd 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1594,6 +1594,9 @@ enum nl80211_commands {
* @NL80211_ATTR_TDLS_INITIATOR: flag attribute indicating the current end is
* the TDLS link initiator.
*
+ * @NL80211_ATTR_WIPHY_DYNACK: whether dynamic ack timeout estimation algorithm
+ * is enabled
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1936,6 +1939,8 @@ enum nl80211_attrs {
NL80211_ATTR_TDLS_INITIATOR,
+ NL80211_ATTR_WIPHY_DYNACK,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 082f5c6..c814b45 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -225,6 +225,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
[NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
[NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
[NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
+ [NL80211_ATTR_WIPHY_DYNACK] = { .type = NLA_FLAG },
[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
@@ -2192,6 +2193,12 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
return result;
}
+ if (info->attrs[NL80211_ATTR_WIPHY_DYNACK]) {
+ result = rdev_enable_dynack(rdev);
+ if (result)
+ return result;
+ }
+
changed = 0;
if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 56c2240..48df1f5 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -915,4 +915,15 @@ rdev_set_ap_chanwidth(struct cfg80211_registered_device *rdev,
return ret;
}
+static inline int rdev_enable_dynack(struct cfg80211_registered_device *rdev)
+{
+ int ret;
+
+ trace_rdev_enable_dynack(&rdev->wiphy);
+ ret = rdev->ops->enable_dynack(&rdev->wiphy);
+ trace_rdev_return_int(&rdev->wiphy, ret);
+
+ return ret;
+}
+
#endif /* __CFG80211_RDEV_OPS */
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 0c524cd..0c222b5 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -1896,6 +1896,11 @@ TRACE_EVENT(rdev_set_ap_chanwidth,
WIPHY_PR_ARG, NETDEV_PR_ARG, CHAN_DEF_PR_ARG)
);
+DEFINE_EVENT(wiphy_only_evt, rdev_enable_dynack,
+ TP_PROTO(struct wiphy *wiphy),
+ TP_ARGS(wiphy)
+);
+
/*************************************************************
* cfg80211 exported functions traces *
*************************************************************/
--
1.9.1
--
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