cfg80211: support TX error rate CQM
Let the user configure serveral TX error conection quality monitoring
parameters: % error rate, survey interval, and # of attempted packets.
On exceeding the TX failure rate over the given interval, the driver
will send a CQM notify event with the actual TX failure rate and
packets attempted.
Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index be8750f..9216e45 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6267,8 +6267,35 @@
[NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
[NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
+ [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
+ [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
+ [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
};
+static int nl80211_set_cqm_txe(struct genl_info *info,
+ u32 rate, u32 pkts, u32 intvl)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct wireless_dev *wdev;
+ struct net_device *dev = info->user_ptr[1];
+
+ if ((rate < 0 || rate > 100) ||
+ (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
+ return -EINVAL;
+
+ wdev = dev->ieee80211_ptr;
+
+ if (!rdev->ops->set_cqm_txe_config)
+ return -EOPNOTSUPP;
+
+ if (wdev->iftype != NL80211_IFTYPE_STATION &&
+ wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
+
+ return rdev->ops->set_cqm_txe_config(wdev->wiphy, dev,
+ rate, pkts, intvl);
+}
+
static int nl80211_set_cqm_rssi(struct genl_info *info,
s32 threshold, u32 hysteresis)
{
@@ -6316,6 +6343,14 @@
threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
+ } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
+ attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
+ attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
+ u32 rate, pkts, intvl;
+ rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
+ pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
+ intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
+ err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
} else
err = -EINVAL;
@@ -8496,6 +8531,56 @@
}
void
+nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *peer,
+ u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
+{
+ struct sk_buff *msg;
+ struct nlattr *pinfoattr;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
+ nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
+ nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
+ goto nla_put_failure;
+
+ pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
+ if (!pinfoattr)
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
+ goto nla_put_failure;
+
+ nla_nest_end(msg, pinfoattr);
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
+ return;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
+void
nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *peer,
u32 num_packets, gfp_t gfp)