[PATCH wpan-next 01/20] net: mac802154: Allow the creation of coordinator interfaces

[Miquel Raynal <miquel.raynal@bootlin.com>]

As a first strep in introducing proper PAN management and association,
we need to be able to create coordinator interfaces which might act as
coordinator or PAN coordinator.

Hence, let's add the minimum support to allow the creation of these
interfaces. This might be restrained and improved later.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 net/mac802154/iface.c | 14 ++++++++------
 net/mac802154/rx.c    |  2 +-
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c
index 500ed1b81250..7ac0c5685d3f 100644
--- a/net/mac802154/iface.c
+++ b/net/mac802154/iface.c
@@ -273,13 +273,13 @@ ieee802154_check_concurrent_iface(struct ieee802154_sub_if_data *sdata,
 		if (nsdata != sdata && ieee802154_sdata_running(nsdata)) {
 			int ret;
 
-			/* TODO currently we don't support multiple node types
-			 * we need to run skb_clone at rx path. Check if there
-			 * exist really an use case if we need to support
-			 * multiple node types at the same time.
+			/* TODO currently we don't support multiple node/coord
+			 * types we need to run skb_clone at rx path. Check if
+			 * there exist really an use case if we need to support
+			 * multiple node/coord types at the same time.
 			 */
-			if (wpan_dev->iftype == NL802154_IFTYPE_NODE &&
-			    nsdata->wpan_dev.iftype == NL802154_IFTYPE_NODE)
+			if (wpan_dev->iftype != NL802154_IFTYPE_MONITOR &&
+			    nsdata->wpan_dev.iftype != NL802154_IFTYPE_MONITOR)
 				return -EBUSY;
 
 			/* check all phy mac sublayer settings are the same.
@@ -577,6 +577,7 @@ ieee802154_setup_sdata(struct ieee802154_sub_if_data *sdata,
 	wpan_dev->short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
 
 	switch (type) {
+	case NL802154_IFTYPE_COORD:
 	case NL802154_IFTYPE_NODE:
 		ieee802154_be64_to_le64(&wpan_dev->extended_addr,
 					sdata->dev->dev_addr);
@@ -636,6 +637,7 @@ ieee802154_if_add(struct ieee802154_local *local, const char *name,
 	ieee802154_le64_to_be64(ndev->perm_addr,
 				&local->hw.phy->perm_extended_addr);
 	switch (type) {
+	case NL802154_IFTYPE_COORD:
 	case NL802154_IFTYPE_NODE:
 		ndev->type = ARPHRD_IEEE802154;
 		if (ieee802154_is_valid_extended_unicast_addr(extended_addr)) {
diff --git a/net/mac802154/rx.c b/net/mac802154/rx.c
index b8ce84618a55..39459d8d787a 100644
--- a/net/mac802154/rx.c
+++ b/net/mac802154/rx.c
@@ -203,7 +203,7 @@ __ieee802154_rx_handle_packet(struct ieee802154_local *local,
 	}
 
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		if (sdata->wpan_dev.iftype != NL802154_IFTYPE_NODE)
+		if (sdata->wpan_dev.iftype == NL802154_IFTYPE_MONITOR)
 			continue;
 
 		if (!ieee802154_sdata_running(sdata))
-- 
2.34.1