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* caif: Kconfig and Makefile fixesSjur Braendeland2010-06-29
| | | | | | | | Use "depends on" instead of "if" in Kconfig files. Fixed CAIF debug flag, and removed unnecessary clean-* options. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Add debug connection type for CAIF.Sjur Braendeland2010-06-20
| | | | | | | | | | | | | | | | | Added new CAIF protocol type CAIFPROTO_DEBUG for accessing CAIF debug on the ST Ericsson modems. There are two debug servers on the modem, one for radio related debug (CAIF_RADIO_DEBUG_SERVICE) and the other for communication/application related debug (CAIF_COM_DEBUG_SERVICE). The debug connection can contain trace debug printouts or interactive debug used for debugging and test. Debug connections can be of type STREAM or SEQPACKET. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Use link layer MTU instead of fixed MTUSjur Braendeland2010-06-20
| | | | | | | | | 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 Braendeland2010-06-20
| | | | | | | | 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: Bugfix not all services uses flow-ctrl.Sjur Braendeland2010-06-20
| | | | | | | | | Flow control is not used by all CAIF services. The usage of flow control is now part of the gerneal initialization function for CAIF Services. Signed-off-by: Sjur Braendeland@stericsson.com Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2010-06-11
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
| * caif: fix a couple range checksDan Carpenter2010-06-09
| | | | | | | | | | | | | | | | The extra ! character means that these conditions are always false. 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: cleanup: remove duplicate checksDan Carpenter2010-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | "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>
* | caif: remove unneeded null check in caif_connect()Dan Carpenter2010-05-31
|/ | | | | | | | | | | | We already dereferenced uaddr towards the start of the function when we checked that "uaddr->sa_family != AF_CAIF". Both the check here and the earlier check were added in bece7b2398d0: "caif: Rewritten socket implementation". Before that patch, we assumed that we recieved a valid pointer for uaddr, and based on that, I have removed this check. 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: unlock on error path in cfserl_receive()Dan Carpenter2010-05-29
| | | | | | | | | | There was an spin_unlock missing on the error path. The spin_lock was tucked in with the declarations so it was hard to spot. I added a new line. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Sjur Brændeland <sjurbren@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Bugfix - use MSG_TRUNC in receiveSjur Braendeland2010-05-24
| | | | | | | | | Fixed handling when skb don't fit in user buffer, instead of returning -EMSGSIZE, the buffer is truncated (just as unix seqpakcet does). Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Bugfix - missing spin_unlockSjur Braendeland2010-05-24
| | | | | | | | Splint found missing spin_unlock. Corrected this an some other trivial split warnings. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Bugfix - Poll can't return POLLHUP while connecting.Sjur Braendeland2010-05-24
| | | | | | | | | | Discovered bug when testing async connect. While connecting poll should not return POLLHUP, but POLLOUT when connected. Also fixed the sysfs flow-control-counters. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Bugfix - handle mem-allocation failuresSjur Braendeland2010-05-24
| | | | | | | | Discovered bugs when injecting slab allocation failures. Add checks on all memory allocation. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Bugfix - use standard Linux listsSjur Braendeland2010-05-24
| | | | | | | | Discovered bug when running high number of parallel connect requests. Replace buggy home brewed list with linux/list.h. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Bugfix - wait_ev*_timeout returns long.Sjur Braendeland2010-05-24
| | | | | | | | Discovered bug when testing on 64bit architecture. Fixed by using long to store result from wait_event_interruptible_timeout. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-caif: drop redundant Kconfig entriesMike Frysinger2010-05-24
| | | | | | | | | | | There is already a submenu entry that is always displayed, so there is no need to also show a dedicated CAIF comment. Drop dead commented code while we're here, and change the submenu text to better match the style everyone else is using. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Remove unnecessary returns from void function()sJoe Perches2010-05-18
| | | | | | | | | | | | | | | | This patch removes from net/ (but not any netfilter files) all the unnecessary return; statements that precede the last closing brace of void functions. It does not remove the returns that are immediately preceded by a label as gcc doesn't like that. Done via: $ grep -rP --include=*.[ch] -l "return;\n}" net/ | \ xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }' Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/caif: Use kzallocJulia Lawall2010-05-18
| | | | | | | | | | | | | | | | | | | | | | | 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>
* Bugfix: Link selection was swapped in switch.Sjur Braendeland2010-04-28
| | | | | Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Bugfixes in CAIF netdevice for close and flow controlSjur Braendeland2010-04-28
| | | | | | | | | | | Changes: o Bugfix: Flow control was causing the device to be destroyed. o Bugfix: Handle CAIF channel connect failures. o If the underlying link layer is gone the net-device is no longer removed, but closed. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Rewritten socket implementationSjur Braendeland2010-04-28
| | | | | | | | | | | | Changes: This is a complete re-write of the socket layer. Making the socket implementation more aligned with the other socket layers and using more of the support functions available in sock.c. Lots of code is copied from af_unix (and some from af_irda). Non-blocking mode should be working as well. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* caif: Disconnect without waiting for responseSjur Braendeland2010-04-28
| | | | | | | | | | | | | | | | | | | 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 Braendeland2010-04-28
| | | | | | | | | | 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 Braendeland2010-04-28
| | | | | | | | | | | | 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: use sk_sleep()Eric Dumazet2010-04-26
| | | | | | | | Commit aa395145 (net: sk_sleep() helper) missed three files in the conversion. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sk_sleep() helperEric Dumazet2010-04-20
| | | | | | | | | | | | | | | | | Define a new function to return the waitqueue of a "struct sock". static inline wait_queue_head_t *sk_sleep(struct sock *sk) { return sk->sk_sleep; } Change all read occurrences of sk_sleep by a call to this function. Needed for a future RCU conversion. sk_sleep wont be a field directly available. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-caif: using kmalloc/kfree requires the include of slab.hStephen Rothwell2010-04-01
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-caif: add CAIF Kconfig and MakefilesSjur Braendeland2010-03-30
| | | | | | | | | | Kconfig and Makefiles with options for: CAIF: Including caif CAIF_DEBUG: CAIF Debug CAIF_NETDEV: CAIF Network Device for GPRS Contexts Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-caif: add CAIF netdeviceSjur Braendeland2010-03-30
| | | | | | | | Adding GPRS Net Device for PDP Contexts. The device can be managed by RTNL as defined in if_caif.h. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-caif: add CAIF socket implementationSjur Braendeland2010-03-30
| | | | | | | | | | Implementation of CAIF sockets for protocol and address family PF_CAIF and AF_CAIF. CAIF socket is connection oriented implementing SOCK_SEQPACKET and SOCK_STREAM interface with supporting blocking and non-blocking mode. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-caif: add CAIF device registration functionalitySjur Braendeland2010-03-30
| | | | | | | Registration and deregistration of CAIF Link Layer. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-caif: add CAIF generic caif support functionsSjur Braendeland2010-03-30
| | | | | | | | | | 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>
* net-caif: add CAIF core protocol stackSjur Braendeland2010-03-30
CAIF generic protocol implementation. This layer is somewhat generic in order to be able to use and test it outside the Linux Kernel. cfctrl.c - CAIF control protocol layer cfdbgl.c - CAIF debug protocol layer cfdgml.c - CAIF datagram protocol layer cffrml.c - CAIF framing protocol layer cfmuxl.c - CAIF mux protocol layer cfrfml.c - CAIF remote file manager protocol layer cfserl.c - CAIF serial (fragmentation) protocol layer cfsrvl.c - CAIF generic service layer functions cfutill.c - CAIF utility protocol layer cfveil.c - CAIF AT protocol layer cfvidl.c - CAIF video protocol layer Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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