ieee820154: add max frame retries setting support
This patch add support for setting mac frame retries setting via
nl802154 framework.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index af38355..0e272c6 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -667,6 +667,30 @@
return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
}
+static int
+nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
+ struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
+ s8 max_frame_retries;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
+ return -EINVAL;
+
+ max_frame_retries = nla_get_s8(
+ info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
+
+ /* check 802.15.4 constraints */
+ if (max_frame_retries < -1 || max_frame_retries > 7)
+ return -EINVAL;
+
+ return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
+}
+
#define NL802154_FLAG_NEED_WPAN_PHY 0x01
#define NL802154_FLAG_NEED_NETDEV 0x02
#define NL802154_FLAG_NEED_RTNL 0x04
@@ -817,6 +841,14 @@
.internal_flags = NL802154_FLAG_NEED_NETDEV |
NL802154_FLAG_NEED_RTNL,
},
+ {
+ .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
+ .doit = nl802154_set_max_frame_retries,
+ .policy = nl802154_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
};
/* initialisation/exit functions */
diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h
index 263095c..f9171aa 100644
--- a/net/ieee802154/rdev-ops.h
+++ b/net/ieee802154/rdev-ops.h
@@ -59,4 +59,13 @@
max_csma_backoffs);
}
+static inline int
+rdev_set_max_frame_retries(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev,
+ const s8 max_frame_retries)
+{
+ return rdev->ops->set_max_frame_retries(&rdev->wpan_phy, wpan_dev,
+ max_frame_retries);
+}
+
#endif /* __CFG802154_RDEV_OPS */
diff --git a/net/mac802154/cfg.c b/net/mac802154/cfg.c
index d72feeb..a8f6eaa 100644
--- a/net/mac802154/cfg.c
+++ b/net/mac802154/cfg.c
@@ -140,6 +140,21 @@
return 0;
}
+static int ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy,
+ struct wpan_dev *wpan_dev,
+ const s8 max_frame_retries)
+{
+ struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
+
+ ASSERT_RTNL();
+
+ if (!(local->hw.flags & IEEE802154_HW_FRAME_RETRIES))
+ return -EOPNOTSUPP;
+
+ wpan_dev->frame_retries = max_frame_retries;
+ return 0;
+}
+
const struct cfg802154_ops mac802154_config_ops = {
.add_virtual_intf_deprecated = ieee802154_add_iface_deprecated,
.del_virtual_intf_deprecated = ieee802154_del_iface_deprecated,
@@ -148,4 +163,5 @@
.set_short_addr = ieee802154_set_short_addr,
.set_backoff_exponent = ieee802154_set_backoff_exponent,
.set_max_csma_backoffs = ieee802154_set_max_csma_backoffs,
+ .set_max_frame_retries = ieee802154_set_max_frame_retries,
};
