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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-20 13:43:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-20 13:43:21 -0700
commit06f4e926d256d902dd9a53dcb400fd74974ce087 (patch)
tree0b438b67f5f0eff6fd617bc497a9dace6164a488 /include/net/caif
parent8e7bfcbab3825d1b404d615cb1b54f44ff81f981 (diff)
parentd93515611bbc70c2fe4db232e5feb448ed8e4cc9 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits) macvlan: fix panic if lowerdev in a bond tg3: Add braces around 5906 workaround. tg3: Fix NETIF_F_LOOPBACK error macvlan: remove one synchronize_rcu() call networking: NET_CLS_ROUTE4 depends on INET irda: Fix error propagation in ircomm_lmp_connect_response() irda: Kill set but unused variable 'bytes' in irlan_check_command_param() irda: Kill set but unused variable 'clen' in ircomm_connect_indication() rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport() be2net: Kill set but unused variable 'req' in lancer_fw_download() irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication() atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined. rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer(). rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler() rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection() rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window() pkt_sched: Kill set but unused variable 'protocol' in tc_classify() isdn: capi: Use pr_debug() instead of ifdefs. tg3: Update version to 3.119 tg3: Apply rx_discards fix to 5719/5720 ... Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c as per Davem.
Diffstat (limited to 'include/net/caif')
-rw-r--r--include/net/caif/caif_dev.h50
-rw-r--r--include/net/caif/cfcnfg.h71
-rw-r--r--include/net/caif/cfctrl.h15
-rw-r--r--include/net/caif/cffrml.h7
-rw-r--r--include/net/caif/cfmuxl.h2
-rw-r--r--include/net/caif/cfpkt.h76
-rw-r--r--include/net/caif/cfsrvl.h32
7 files changed, 64 insertions, 189 deletions
diff --git a/include/net/caif/caif_dev.h b/include/net/caif/caif_dev.h
index 8eff83b95366..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.
@@ -62,46 +63,45 @@ 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_release_client - Release adaptation layer reference to client.
+ * caif_client_register_refcnt - register ref-count functions provided by client.
*
- * @client_layer: Client layer.
+ * @adapt_layer: Client layer using CAIF Stack.
+ * @hold: Function provided by client layer increasing ref-count
+ * @put: Function provided by client layer decreasing ref-count
*
- * Releases a client/adaptation layer use of the caif stack.
- * This function must be used after caif_disconnect_client to
- * decrease the reference count of the service layer.
- */
-void caif_release_client(struct cflayer *client_layer);
-
-/**
- * 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.
+ * Client of the CAIF Stack must register functions for reference counting.
+ * These functions are called by the CAIF Stack for every upstream packet,
+ * and must therefore be implemented efficiently.
*
+ * Client should call caif_free_client when reference count degrease to zero.
*/
-int connect_req_to_link_param(struct cfcnfg *cnfg,
- struct caif_connect_request *con_req,
- struct cfctrl_link_param *channel_setup_param);
+void caif_client_register_refcnt(struct cflayer *adapt_layer,
+ void (*hold)(struct cflayer *lyr),
+ void (*put)(struct cflayer *lyr));
/**
- * get_caif_conf() - Get the configuration handler.
+ * caif_free_client - Free memory used to manage the client in the CAIF Stack.
+ *
+ * @client_layer: Client layer to be removed.
+ *
+ * This function must be called from client layer in order to free memory.
+ * Caller must guarantee that no packets are in flight upstream when calling
+ * this function.
*/
-struct cfcnfg *get_caif_conf(void);
-
+void caif_free_client(struct cflayer *adap_layer);
#endif /* CAIF_DEV_H_ */
diff --git a/include/net/caif/cfcnfg.h b/include/net/caif/cfcnfg.h
index f33d36341132..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);
/**
@@ -88,61 +92,12 @@ 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.
+ * cfcnfg_set_phy_state() - Set the state of the physical interface device.
* @cnfg: Configuration object
- * @phy_pref: Caif Link Layer preference
+ * @phy_layer: Physical Layer representation
+ * @up: State of device
*/
-struct dev_info *cfcnfg_get_phyid(struct cfcnfg *cnfg,
- enum cfcnfg_phy_preference phy_pref);
+int cfcnfg_set_phy_state(struct cfcnfg *cnfg, struct cflayer *phy_layer,
+ bool up);
-/**
- * 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);
#endif /* CFCNFG_H_ */
diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
index e54f6396fa4c..9e5425b4a1d7 100644
--- a/include/net/caif/cfctrl.h
+++ b/include/net/caif/cfctrl.h
@@ -121,19 +121,10 @@ int cfctrl_linkup_request(struct cflayer *cfctrl,
struct cflayer *user_layer);
int cfctrl_linkdown_req(struct cflayer *cfctrl, u8 linkid,
struct cflayer *client);
-void cfctrl_sleep_req(struct cflayer *cfctrl);
-void cfctrl_wake_req(struct cflayer *cfctrl);
-void cfctrl_getstartreason_req(struct cflayer *cfctrl);
+
struct cflayer *cfctrl_create(void);
-void cfctrl_set_dnlayer(struct cflayer *this, struct cflayer *dn);
-void cfctrl_set_uplayer(struct cflayer *this, struct cflayer *up);
struct cfctrl_rsp *cfctrl_get_respfuncs(struct cflayer *layer);
-bool cfctrl_req_eq(struct cfctrl_request_info *r1,
- struct cfctrl_request_info *r2);
-void cfctrl_insert_req(struct cfctrl *ctrl,
- struct cfctrl_request_info *req);
-struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
- struct cfctrl_request_info *req);
-void cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer);
+int cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer);
+void cfctrl_remove(struct cflayer *layr);
#endif /* CFCTRL_H_ */
diff --git a/include/net/caif/cffrml.h b/include/net/caif/cffrml.h
index 3f14d2e1ce61..afac1a48cce7 100644
--- a/include/net/caif/cffrml.h
+++ b/include/net/caif/cffrml.h
@@ -7,10 +7,15 @@
#ifndef CFFRML_H_
#define CFFRML_H_
#include <net/caif/caif_layer.h>
+#include <linux/netdevice.h>
struct cffrml;
-struct cflayer *cffrml_create(u16 phyid, bool DoFCS);
+struct cflayer *cffrml_create(u16 phyid, bool use_fcs);
+void cffrml_free(struct cflayer *layr);
void cffrml_set_uplayer(struct cflayer *this, struct cflayer *up);
void cffrml_set_dnlayer(struct cflayer *this, struct cflayer *dn);
+void cffrml_put(struct cflayer *layr);
+void cffrml_hold(struct cflayer *layr);
+int cffrml_refcnt_read(struct cflayer *layr);
#endif /* CFFRML_H_ */
diff --git a/include/net/caif/cfmuxl.h b/include/net/caif/cfmuxl.h
index 4e1b4f33423e..5847a196b8ad 100644
--- a/include/net/caif/cfmuxl.h
+++ b/include/net/caif/cfmuxl.h
@@ -16,7 +16,5 @@ int cfmuxl_set_uplayer(struct cflayer *layr, struct cflayer *up, u8 linkid);
struct cflayer *cfmuxl_remove_dnlayer(struct cflayer *layr, u8 phyid);
int cfmuxl_set_dnlayer(struct cflayer *layr, struct cflayer *up, u8 phyid);
struct cflayer *cfmuxl_remove_uplayer(struct cflayer *layr, u8 linkid);
-bool cfmuxl_is_phy_inuse(struct cflayer *layr, u8 phyid);
-u8 cfmuxl_get_phyid(struct cflayer *layr, u8 channel_id);
#endif /* CFMUXL_H_ */
diff --git a/include/net/caif/cfpkt.h b/include/net/caif/cfpkt.h
index fbc681beff52..6bd200a4754a 100644
--- a/include/net/caif/cfpkt.h
+++ b/include/net/caif/cfpkt.h
@@ -16,12 +16,6 @@ struct cfpkt;
*/
struct cfpkt *cfpkt_create(u16 len);
-/* Create a CAIF packet.
- * data Data to copy.
- * len Length of packet to be created
- * @return New packet.
- */
-struct cfpkt *cfpkt_create_uplink(const unsigned char *data, unsigned int len);
/*
* Destroy a CAIF Packet.
* pkt Packet to be destoyed.
@@ -181,22 +175,6 @@ u16 cfpkt_iterate(struct cfpkt *pkt,
u16 (*iter_func)(u16 chks, void *buf, u16 len),
u16 data);
-/* Append by giving user access to packet buffer
- * cfpkt Packet to append to
- * buf Buffer inside pkt that user shall copy data into
- * buflen Length of buffer and number of bytes added to packet
- * @return 0 on error, 1 on success
- */
-int cfpkt_raw_append(struct cfpkt *cfpkt, void **buf, unsigned int buflen);
-
-/* Extract by giving user access to packet buffer
- * cfpkt Packet to extract from
- * buf Buffer inside pkt that user shall copy data from
- * buflen Length of buffer and number of bytes removed from packet
- * @return 0 on error, 1 on success
- */
-int cfpkt_raw_extract(struct cfpkt *cfpkt, void **buf, unsigned int buflen);
-
/* Map from a "native" packet (e.g. Linux Socket Buffer) to a CAIF packet.
* dir - Direction indicating whether this packet is to be sent or received.
* nativepkt - The native packet to be transformed to a CAIF packet
@@ -210,59 +188,6 @@ struct cfpkt *cfpkt_fromnative(enum caif_direction dir, void *nativepkt);
*/
void *cfpkt_tonative(struct cfpkt *pkt);
-/*
- * Insert a packet in the packet queue.
- * pktq Packet queue to insert into
- * pkt Packet to be inserted in queue
- * prio Priority of packet
- */
-void cfpkt_queue(struct cfpktq *pktq, struct cfpkt *pkt,
- unsigned short prio);
-
-/*
- * Remove a packet from the packet queue.
- * pktq Packet queue to fetch packets from.
- * @return Dequeued packet.
- */
-struct cfpkt *cfpkt_dequeue(struct cfpktq *pktq);
-
-/*
- * Peek into a packet from the packet queue.
- * pktq Packet queue to fetch packets from.
- * @return Peeked packet.
- */
-struct cfpkt *cfpkt_qpeek(struct cfpktq *pktq);
-
-/*
- * Initiates the packet queue.
- * @return Pointer to new packet queue.
- */
-struct cfpktq *cfpktq_create(void);
-
-/*
- * Get the number of packets in the queue.
- * pktq Packet queue to fetch count from.
- * @return Number of packets in queue.
- */
-int cfpkt_qcount(struct cfpktq *pktq);
-
-/*
- * Put content of packet into buffer for debuging purposes.
- * pkt Packet to copy data from
- * buf Buffer to copy data into
- * buflen Length of data to copy
- * @return Pointer to copied data
- */
-char *cfpkt_log_pkt(struct cfpkt *pkt, char *buf, int buflen);
-
-/*
- * Clones a packet and releases the original packet.
- * This is used for taking ownership of a packet e.g queueing.
- * pkt Packet to clone and release.
- * @return Cloned packet.
- */
-struct cfpkt *cfpkt_clone_release(struct cfpkt *pkt);
-
/*
* Returns packet information for a packet.
@@ -270,5 +195,4 @@ struct cfpkt *cfpkt_clone_release(struct cfpkt *pkt);
* @return Packet information
*/
struct caif_payload_info *cfpkt_info(struct cfpkt *pkt);
-/*! @} */
#endif /* CFPKT_H_ */
diff --git a/include/net/caif/cfsrvl.h b/include/net/caif/cfsrvl.h
index b1fa87ee0992..0f5905241843 100644
--- a/include/net/caif/cfsrvl.h
+++ b/include/net/caif/cfsrvl.h
@@ -10,6 +10,7 @@
#include <linux/stddef.h>
#include <linux/types.h>
#include <linux/kref.h>
+#include <linux/rculist.h>
struct cfsrvl {
struct cflayer layer;
@@ -17,12 +18,13 @@ struct cfsrvl {
bool phy_flow_on;
bool modem_flow_on;
bool supports_flowctrl;
- void (*release)(struct kref *);
+ void (*release)(struct cflayer *layer);
struct dev_info dev_info;
- struct kref ref;
+ void (*hold)(struct cflayer *lyr);
+ void (*put)(struct cflayer *lyr);
+ struct rcu_head rcu;
};
-void cfsrvl_release(struct kref *kref);
struct cflayer *cfvei_create(u8 linkid, struct dev_info *dev_info);
struct cflayer *cfdgml_create(u8 linkid, struct dev_info *dev_info);
struct cflayer *cfutill_create(u8 linkid, struct dev_info *dev_info);
@@ -30,8 +32,12 @@ struct cflayer *cfvidl_create(u8 linkid, struct dev_info *dev_info);
struct cflayer *cfrfml_create(u8 linkid, struct dev_info *dev_info,
int mtu_size);
struct cflayer *cfdbgl_create(u8 linkid, struct dev_info *dev_info);
+
+void cfsrvl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,
+ int phyid);
+
bool cfsrvl_phyid_match(struct cflayer *layer, int phyid);
-void cfservl_destroy(struct cflayer *layer);
+
void cfsrvl_init(struct cfsrvl *service,
u8 channel_id,
struct dev_info *dev_info,
@@ -41,23 +47,19 @@ u8 cfsrvl_getphyid(struct cflayer *layer);
static inline void cfsrvl_get(struct cflayer *layr)
{
- struct cfsrvl *s;
- if (layr == NULL)
+ struct cfsrvl *s = container_of(layr, struct cfsrvl, layer);
+ if (layr == NULL || layr->up == NULL || s->hold == NULL)
return;
- s = container_of(layr, struct cfsrvl, layer);
- kref_get(&s->ref);
+
+ s->hold(layr->up);
}
static inline void cfsrvl_put(struct cflayer *layr)
{
- struct cfsrvl *s;
- if (layr == NULL)
+ struct cfsrvl *s = container_of(layr, struct cfsrvl, layer);
+ if (layr == NULL || layr->up == NULL || s->hold == NULL)
return;
- s = container_of(layr, struct cfsrvl, layer);
- WARN_ON(!s->release);
- if (s->release)
- kref_put(&s->ref, s->release);
+ s->put(layr->up);
}
-
#endif /* CFSRVL_H_ */