linux/include/net/caif, branch v3.0.84

caif: Update documentation of CAIF transmit and receive functions.

2011-05-23T00:11:48Z

Trivial patch updating documentation in header files only. Error handling of CAIF transmit errors was changed by commit: caif: Don't resend if dev_queue_xmit fails. This patch updates the documentation accordingly. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller

caif: remove unesesarry exports

2011-05-15T21:45:56Z

Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller

caif: Handle dev_queue_xmit errors.

2011-05-15T21:45:56Z

Do proper handling of dev_queue_xmit errors in order to avoid double free of skb and leaks in error conditions. In cfctrl pending requests are removed when CAIF Link layer goes down. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller

caif: prepare support for namespaces

2011-05-15T21:45:55Z

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 Signed-off-by: David S. Miller

caif: Protected in-flight packets using dev or sock refcont.

2011-05-15T21:45:55Z

CAIF Socket Layer and ip-interface registers reference counters in CAIF service layer. The functions sock_hold, sock_put and dev_hold, dev_put are used by CAIF Stack to protect from freeing memory while packets are in-flight. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller

caif: Move refcount from service layer to sock and dev.

2011-05-15T21:45:55Z

Instead of having reference counts in caif service layers, we hook into existing refcount handling in socket layer and netdevice. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller

caif: Add ref-count to framing layer

2011-05-15T21:45:55Z

Introduce Per-cpu reference for lower part of CAIF Stack. Before freeing payload is disabled, synchronize_rcu() is called, and then ref-count verified to be zero. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller

caif: Use RCU instead of spin-lock in caif_dev.c

2011-05-15T21:45:54Z

RCU read_lock and refcount is used to protect in-flight packets. Use RCU and counters to manage freeing lower part of the CAIF stack if CAIF-link layer is removed. Old solution based on delaying removal of device is removed. When CAIF link layer goes down the use of CAIF link layer is disabled (by calling caif_set_phy_state()), but removal and freeing of the lower part of the CAIF stack is done when Link layer is unregistered. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller

caif: Use rcu_read_lock in CAIF mux layer.

2011-05-15T21:45:54Z

Replace spin_lock with rcu_read_lock when accessing lists to layers and cache. While packets are in flight rcu_read_lock should not be held, instead ref-counters are used in combination with RCU. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller

caif: code cleanup

2011-04-11T22:08:47Z

Cleanup of new CAIF code. * make local functions static * remove code that is never used * expand get_caif_conf() since wrapper is no longer needed * make args to comparison functions const * rename connect_req_to_link_param to keep exported names consistent Compile tested only. Signed-off-by: Stephen Hemminger Acked-by: Sjur Brændeland Signed-off-by: David S. Miller