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* caif: Fixes freeze on Link layer removal.sjur.brandeland@stericsson.com2011-05-221-25/+19
| | | | | | | | | | | | | | | | | | | | CAIF Socket layer - caif_socket.c: - Plug mem-leak at reconnect. - Always call disconnect to cleanup CAIF stack. - Disconnect will always report success. CAIF configuration layer - cfcnfg.c - Disconnect must dismantle the caif stack correctly - Protect against faulty removals (check on id zero) CAIF mux layer - cfmuxl.c - When inserting new service layer in the MUX remove any old entries with the same ID. - When removing CAIF Link layer, remove the associated service layers before notifying service layers. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: remove unesesarry exportssjur.brandeland@stericsson.com2011-05-151-1/+0
| | | | | Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Handle dev_queue_xmit errors.sjur.brandeland@stericsson.com2011-05-151-1/+1
| | | | | | | | | 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 <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: prepare support for namespacessjur.brandeland@stericsson.com2011-05-151-30/+116
| | | | | | | | | 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>
* caif: Add ref-count to framing layersjur.brandeland@stericsson.com2011-05-151-1/+8
| | | | | | | | | 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 <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Use RCU and lists in cfcnfg.c for managing caif link layerssjur.brandeland@stericsson.com2011-05-151-160/+213
| | | | | | | | | RCU lists are used for handling the link layers instead of array. When generating CAIF phy-id, ifindex is used as base. Legal range is 1-6. Introduced set_phy_state() for managing CAIF Link layer state. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: code cleanupStephen Hemminger2011-04-111-1/+1
| | | | | | | | | | | | | | | | 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 <shemminger@vyatta.com> Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: cleanup unused macros in net directoryShan Wei2011-01-191-2/+0
| | | | | | | | | | | Clean up some unused macros in net/*. 1. be left for code change. e.g. PGV_FROM_VMALLOC, PGV_FROM_VMALLOC, KMEM_SAFETYZONE. 2. never be used since introduced to kernel. e.g. P9_RDMA_MAX_SGE, UTIL_CTRL_PKT_SIZE. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Acked-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: checking the wrong variableDan Carpenter2011-01-151-4/+5
| | | | | | | | | | | In the original code we check if (servl == NULL) twice. The first time should print the message that cfmuxl_remove_uplayer() failed and set "ret" correctly, but instead it just returns success. The second check should be checking the value of "ret" instead of "servl". Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Bugfix for socket priority, bindtodev and dbg channel.André Carvalho de Matos2010-11-031-10/+7
| | | | | | | | | | | | | | | | | | | Changes: o Bugfix: SO_PRIORITY for SOL_SOCKET could not be handled in caif's setsockopt, using the struct sock attribute priority instead. o Bugfix: SO_BINDTODEVICE for SOL_SOCKET could not be handled in caif's setsockopt, using the struct sock attribute ifindex instead. o Wrong assert statement for RFM layer segmentation. o CAIF Debug channels was not working over SPI, caif_payload_info containing padding info must be initialized. o Check on pointer before dereferencing when unregister dev in caif_dev.c Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Minor fixes in log prints.Sjur Braendeland2010-09-211-1/+1
| | | | | | | Use pr_debug for flow control printouts, and refine an error printout. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/caif: Use pr_fmtJoe Perches2010-09-061-28/+21
| | | | | | | | | | | | | | | This patch standardizes caif message logging prefixes. Add #define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__ Add missing "\n"s to some logging messages Convert pr_warning to pr_warn This changes the logging message prefix from CAIF: to caif: for all uses but caif_socket.c and chnl_net.c. Those now use their filename without extension. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Use link layer MTU instead of fixed MTUSjur Braendeland2010-06-201-4/+40
| | | | | | | | | Previously CAIF supported maximum transfer size of ~4050. The transfer size is now calculated dynamically based on the link layers mtu size. Signed-off-by: Sjur Braendeland@stericsson.com Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Bugfix - RFM must support segmentation.Sjur Braendeland2010-06-201-1/+3
| | | | | | | | CAIF Remote File Manager may send or receive more than 4050 bytes. Due to this The CAIF RFM service have to support segmentation. Signed-off-by: Sjur Braendeland@stericsson.com Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: cleanup: remove duplicate checksDan Carpenter2010-05-311-6/+2
| | | | | | | | | | | | | | "phyinfo" can never be null here because we assigned it an address, so I removed both the assert and the second check inside the if statement. I removed the "phyinfo->phy_layer != NULL" check as well because that was asserted earlier. Walter Harms suggested I move the "phyinfo->phy_ref_count++;" outside the if condition for readability, so I have done that. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/caif: Use kzallocJulia Lawall2010-05-171-2/+1
| | | | | | | | | | | | | | | | | | | | | | | Use kzalloc rather than the combination of kmalloc and memset. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,size,flags; statement S; @@ -x = kmalloc(size,flags); +x = kzalloc(size,flags); if (x == NULL) S -memset(x, 0, size); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Disconnect without waiting for responseSjur Braendeland2010-04-281-110/+45
| | | | | | | | | | | | | | | | | | | Changes: o Function cfcnfg_disconn_adapt_layer is changed to do asynchronous disconnect, not waiting for any response from the modem. Due to this the function cfcnfg_linkdestroy_rsp does nothing anymore. o Because disconnect may take down a connection before a connect response is received the function cfcnfg_linkup_rsp is checking if the client is still waiting for the response, if not a disconnect request is sent to the modem. o cfctrl is no longer keeping track of pending disconnect requests. o Added function cfctrl_cancel_req, which is used for deleting a pending connect request if disconnect is done before connect response is received. o Removed unused function cfctrl_insert_req2 o Added better handling of connect reject from modem. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Add reference counting to service layerSjur Braendeland2010-04-281-0/+7
| | | | | | | | | | Changes: o Added functions cfsrvl_get and cfsrvl_put. o Added support release_client to use by socket and net device. o Increase reference counting for in-flight packets from cfmuxl Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Rename functions in cfcnfg and caif_devSjur Braendeland2010-04-281-26/+25
| | | | | | | | | | | | Changes: o Renamed cfcnfg_del_adapt_layer to cfcnfg_disconn_adapt_layer o Fixed typo cfcfg to cfcnfg o Renamed linkid to channel_id o Updated documentation in caif_dev.h o Minor formatting changes Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-caif: using kmalloc/kfree requires the include of slab.hStephen Rothwell2010-04-011-0/+1
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-caif: add CAIF generic caif support functionsSjur Braendeland2010-03-301-0/+529
Support functions for the caif protocol stack: cfcnfg.c - CAIF Configuration Module used for adding and removing drivers and connection cfpkt_skbuff.c - CAIF Packet layer (SKB helper functions) Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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