caif: prepare support for namespaces

Use struct net to reference CAIF configuration object instead of static variables.
Refactor functions caif_connect_client, caif_disconnect_client and squach
files cfcnfg.c and caif_config_utils.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 14 insertions, 81 deletions

diff --git a/include/net/caif/caif_dev.h b/include/net/caif/caif_dev.h
index 6638435525fc..c011281d92c0 100644
--- a/include/net/caif/caif_dev.h
+++ b/include/net/caif/caif_dev.h
@@ -11,6 +11,7 @@
 #include <net/caif/cfcnfg.h>
 #include <linux/caif/caif_socket.h>
 #include <linux/if.h>
+#include <linux/net.h>
 
 /**
  * struct caif_param - CAIF parameters.
@@ -62,16 +63,18 @@ struct caif_connect_request {
  * E.g. CAIF Socket will call this function for each socket it connects
  * and have one client_layer instance for each socket.
  */
-int caif_connect_client(struct caif_connect_request *conn_req,
+int caif_connect_client(struct net *net,
+                        struct caif_connect_request *conn_req,
                         struct cflayer *client_layer, int *ifindex,
                         int *headroom, int *tailroom);
 
 /**
  * caif_disconnect_client - Disconnects a client from the CAIF stack.
  *
- * @client_layer: Client layer to be removed.
+ * @client_layer: Client layer to be disconnected.
  */
-int caif_disconnect_client(struct cflayer *client_layer);
+int caif_disconnect_client(struct net *net, struct cflayer *client_layer);
+
 
 /**
  * caif_client_register_refcnt - register ref-count functions provided by client.
@@ -91,21 +94,6 @@ void caif_client_register_refcnt(struct cflayer *adapt_layer,
                                         void (*hold)(struct cflayer *lyr),
                                         void (*put)(struct cflayer *lyr));
 /**
- * caif_connect_req_to_link_param - Translate configuration parameters
- *                                  from socket format to internal format.
- * @cnfg:       Pointer to configuration handler
- * @con_req:    Configuration parameters supplied in function
- *              caif_connect_client
- * @channel_setup_param: Parameters supplied to the CAIF Core stack for
- *                       setting up channels.
- *
- */
-
-int caif_connect_req_to_link_param(struct cfcnfg *cnfg,
-                                   struct caif_connect_request *con_req,
-                                   struct cfctrl_link_param *setup_param);
-
-/**
  * caif_free_client - Free memory used to manage the client in the CAIF Stack.
  *
  * @client_layer: Client layer to be removed.
diff --git a/include/net/caif/cfcnfg.h b/include/net/caif/cfcnfg.h
index e0a1eb5d7eaf..3e93a4a4b677 100644
--- a/include/net/caif/cfcnfg.h
+++ b/include/net/caif/cfcnfg.h
@@ -46,6 +46,12 @@ enum cfcnfg_phy_preference {
 };
 
 /**
+ * cfcnfg_create() - Get the CAIF configuration object given network.
+ * @net:        Network for the CAIF configuration object.
+ */
+struct cfcnfg *get_cfcnfg(struct net *net);
+
+/**
  * cfcnfg_create() - Create the CAIF configuration object.
  */
 struct cfcnfg *cfcnfg_create(void);
@@ -65,17 +71,15 @@ void cfcnfg_remove(struct cfcnfg *cfg);
  * @dev:        Pointer to link layer device
  * @phy_layer:  Specify the physical layer. The transmit function
  *              MUST be set in the structure.
- * @phyid:      The assigned physical ID for this layer, used in
- *              cfcnfg_add_adapt_layer to specify PHY for the link.
  * @pref:       The phy (link layer) preference.
  * @fcs:        Specify if checksum is used in CAIF Framing Layer.
- * @stx:        Specify if Start Of Frame extension is used.
+ * @stx:        Specify if Start Of Frame eXtention is used.
  */
 
 void
 cfcnfg_add_phy_layer(struct cfcnfg *cnfg, enum cfcnfg_phy_type phy_type,
                      struct net_device *dev, struct cflayer *phy_layer,
-                     u16 *phyid, enum cfcnfg_phy_preference pref,
+                     enum cfcnfg_phy_preference pref,
                      bool fcs, bool stx);
 
 /**
@@ -88,65 +92,6 @@ cfcnfg_add_phy_layer(struct cfcnfg *cnfg, enum cfcnfg_phy_type phy_type,
 int cfcnfg_del_phy_layer(struct cfcnfg *cnfg, struct cflayer *phy_layer);
 
 /**
- * cfcnfg_disconn_adapt_layer - Disconnects an adaptation layer.
- *
- * @cnfg:       Pointer to a CAIF configuration object, created by
- *              cfcnfg_create().
- * @adap_layer: Adaptation layer to be removed.
- */
-int cfcnfg_disconn_adapt_layer(struct cfcnfg *cnfg,
-                        struct cflayer *adap_layer);
-
-/**
- * cfcnfg_release_adap_layer - Used by client to release the adaptation layer.
- *
- * @adap_layer: Adaptation layer.
- */
-void cfcnfg_release_adap_layer(struct cflayer *adap_layer);
-
-/**
- * cfcnfg_add_adaptation_layer - Add an adaptation layer to the CAIF stack.
- *
- * The adaptation Layer is where the interface to application or higher-level
- * driver functionality is implemented.
- *
- * @cnfg:               Pointer to a CAIF configuration object, created by
- *                      cfcnfg_create().
- * @param:              Link setup parameters.
- * @adap_layer:         Specify the adaptation layer; the receive and
- *                      flow-control functions MUST be set in the structure.
- * @ifindex:            Link layer interface index used for this connection.
- * @proto_head:         Protocol head-space needed by CAIF protocol,
- *                      excluding link layer.
- * @proto_tail:         Protocol tail-space needed by CAIF protocol,
- *                      excluding link layer.
- */
-int cfcnfg_add_adaptation_layer(struct cfcnfg *cnfg,
-                            struct cfctrl_link_param *param,
-                            struct cflayer *adap_layer,
-                            int *ifindex,
-                            int *proto_head,
-                            int *proto_tail);
-
-/**
- * cfcnfg_get_phyid() - Get physical ID, given type.
- * Returns one of the physical interfaces matching the given type.
- * Zero if no match is found.
- * @cnfg:       Configuration object
- * @phy_pref:   Caif Link Layer preference
- */
-struct dev_info *cfcnfg_get_phyid(struct cfcnfg *cnfg,
-                     enum cfcnfg_phy_preference phy_pref);
-
-/**
- * cfcnfg_get_id_from_ifi() - Get the Physical Identifier of ifindex,
- *                      it matches caif physical id with the kernel interface id.
- * @cnfg:       Configuration object
- * @ifi:        ifindex obtained from socket.c bindtodevice.
- */
-int cfcnfg_get_id_from_ifi(struct cfcnfg *cnfg, int ifi);
-
-/**
  * cfcnfg_set_phy_state() - Set the state of the physical interface device.
  * @cnfg:       Configuration object
  * @phy_layer:  Physical Layer representation