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* net: Fix inconsistent teardown and release of private netdev state.David S. Miller2017-06-071-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Network devices can allocate reasources and private memory using netdev_ops->ndo_init(). However, the release of these resources can occur in one of two different places. Either netdev_ops->ndo_uninit() or netdev->destructor(). The decision of which operation frees the resources depends upon whether it is necessary for all netdev refs to be released before it is safe to perform the freeing. netdev_ops->ndo_uninit() presumably can occur right after the NETDEV_UNREGISTER notifier completes and the unicast and multicast address lists are flushed. netdev->destructor(), on the other hand, does not run until the netdev references all go away. Further complicating the situation is that netdev->destructor() almost universally does also a free_netdev(). This creates a problem for the logic in register_netdevice(). Because all callers of register_netdevice() manage the freeing of the netdev, and invoke free_netdev(dev) if register_netdevice() fails. If netdev_ops->ndo_init() succeeds, but something else fails inside of register_netdevice(), it does call ndo_ops->ndo_uninit(). But it is not able to invoke netdev->destructor(). This is because netdev->destructor() will do a free_netdev() and then the caller of register_netdevice() will do the same. However, this means that the resources that would normally be released by netdev->destructor() will not be. Over the years drivers have added local hacks to deal with this, by invoking their destructor parts by hand when register_netdevice() fails. Many drivers do not try to deal with this, and instead we have leaks. Let's close this hole by formalizing the distinction between what private things need to be freed up by netdev->destructor() and whether the driver needs unregister_netdevice() to perform the free_netdev(). netdev->priv_destructor() performs all actions to free up the private resources that used to be freed by netdev->destructor(), except for free_netdev(). netdev->needs_free_netdev is a boolean that indicates whether free_netdev() should be done at the end of unregister_netdevice(). Now, register_netdevice() can sanely release all resources after ndo_ops->ndo_init() succeeds, by invoking both ndo_ops->ndo_uninit() and netdev->priv_destructor(). And at the end of unregister_netdevice(), we invoke netdev->priv_destructor() and optionally call free_netdev(). Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers: add explicit interrupt.h includesFlorian Westphal2017-03-301-0/+1
| | | | | | | | | | | These files all use functions declared in interrupt.h, but currently rely on implicit inclusion of this file (via netns/xfrm.h). That won't work anymore when the flow cache is removed so include that header where needed. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* sched/headers: Prepare to use <linux/rcuupdate.h> instead of ↵Ingo Molnar2017-03-021-0/+2
| | | | | | | | | | | | | | | | <linux/rculist.h> in <linux/sched.h> We don't actually need the full rculist.h header in sched.h anymore, we will be able to include the smaller rcupdate.h header instead. But first update code that relied on the implicit header inclusion. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* ktime: Cleanup ktime_set() usageThomas Gleixner2016-12-251-2/+2
| | | | | | | | | | ktime_set(S,N) was required for the timespec storage type and is still useful for situations where a Seconds and Nanoseconds part of a time value needs to be converted. For anything where the Seconds argument is 0, this is pointless and can be replaced with a simple assignment. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org>
* Makefile: drop -D__CHECK_ENDIAN__ from cflagsMichael S. Tsirkin2016-12-151-2/+0
| | | | | | | | | | | That's the default now, no need for makefiles to set it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Kalle Valo <kvalo@codeaurora.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
* mac802154: use rate limited warnings for malformed framesAristeu Rozanski2016-09-191-2/+2
| | | | | | Signed-off-by: Aristeu Rozanski <arozansk@redhat.com> Acked-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: don't warn on unsupported framesAristeu Rozanski2016-09-191-0/+5
| | | | | | | | | Just because we don't support certain types of frames yet doesn't mean we have to flood the message log with warnings about "invalid" frames. Signed-off-by: Aristeu Rozanski <arozansk@redhat.com> Acked-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: set phy net namespace for new ifacesAlexander Aring2016-09-191-0/+1
| | | | | | | | | | This patch sets the net namespace when creating SoftMAC interfaces. This is important if the namespace at phy layer was switched before. Currently we losing interfaces in some namespace and it's not possible to recover that. Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2016-03-191-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: "Highlights: 1) Support more Realtek wireless chips, from Jes Sorenson. 2) New BPF types for per-cpu hash and arrap maps, from Alexei Starovoitov. 3) Make several TCP sysctls per-namespace, from Nikolay Borisov. 4) Allow the use of SO_REUSEPORT in order to do per-thread processing of incoming TCP/UDP connections. The muxing can be done using a BPF program which hashes the incoming packet. From Craig Gallek. 5) Add a multiplexer for TCP streams, to provide a messaged based interface. BPF programs can be used to determine the message boundaries. From Tom Herbert. 6) Add 802.1AE MACSEC support, from Sabrina Dubroca. 7) Avoid factorial complexity when taking down an inetdev interface with lots of configured addresses. We were doing things like traversing the entire address less for each address removed, and flushing the entire netfilter conntrack table for every address as well. 8) Add and use SKB bulk free infrastructure, from Jesper Brouer. 9) Allow offloading u32 classifiers to hardware, and implement for ixgbe, from John Fastabend. 10) Allow configuring IRQ coalescing parameters on a per-queue basis, from Kan Liang. 11) Extend ethtool so that larger link mode masks can be supported. From David Decotigny. 12) Introduce devlink, which can be used to configure port link types (ethernet vs Infiniband, etc.), port splitting, and switch device level attributes as a whole. From Jiri Pirko. 13) Hardware offload support for flower classifiers, from Amir Vadai. 14) Add "Local Checksum Offload". Basically, for a tunneled packet the checksum of the outer header is 'constant' (because with the checksum field filled into the inner protocol header, the payload of the outer frame checksums to 'zero'), and we can take advantage of that in various ways. From Edward Cree" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits) bonding: fix bond_get_stats() net: bcmgenet: fix dma api length mismatch net/mlx4_core: Fix backward compatibility on VFs phy: mdio-thunder: Fix some Kconfig typos lan78xx: add ndo_get_stats64 lan78xx: handle statistics counter rollover RDS: TCP: Remove unused constant RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket net: smc911x: convert pxa dma to dmaengine team: remove duplicate set of flag IFF_MULTICAST bonding: remove duplicate set of flag IFF_MULTICAST net: fix a comment typo ethernet: micrel: fix some error codes ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it bpf, dst: add and use dst_tclassid helper bpf: make skb->tc_classid also readable net: mvneta: bm: clarify dependencies cls_bpf: reset class and reuse major in da ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c ldmvsw: Add ldmvsw.c driver code ...
| * mac802154: Fixes kernel oops when unloading a radio driverKoen Zandberg2016-02-231-1/+1
| | | | | | | | | | | | | | | | | | Destroying the workqueue before unregistering the net device caused a kernel oops Signed-off-by: Koen Zandberg <koen@bergzand.net> Acked-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* | mac802154: Use skcipherHerbert Xu2016-01-272-20/+24
|/ | | | | | | This patch replaces uses of blkcipher with skcipher. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
* mac802154: constify ieee802154_llsec_ops structureJulia Lawall2016-01-041-1/+1
| | | | | | | | | | | The ieee802154_llsec_ops structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: tx: fix synced xmit deadlockAlexander Aring2015-12-102-12/+0
| | | | | | | | | | | | | This patch reverts 6001d52 ("mac802154: tx: don't allow if down while sync tx"). This has side effects with stop callback which flush the transmit workqueue. The stop callback will wait until the workqueue is flushed and holding the rtnl lock. That means it can happen that the stop callback waits forever because it try to lock the rtnl mutex which is already hold by stop callback. Cc: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: Delete an unnecessary check before the function call "kfree_skb"Markus Elfring2015-11-191-2/+1
| | | | | | | | | | The kfree_skb() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: llsec: use kzfreeAlexander Aring2015-10-211-10/+10
| | | | | | | | This patch will use kzfree instead kfree for security related information which can be offered by acccident. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: change mtu size behaviourAlexander Aring2015-09-302-12/+11
| | | | | | | | | | | | | | | | | This patch changes the mtu size of 802.15.4 interfaces. The current setting is the meaning of the maximum transport unit with mac header, which is 127 bytes according 802.15.4. The linux meaning of the mtu size field is the maximum payload of a mac frame. Like in ethernet, which is 1500 bytes. We have dynamic length of mac frames in 802.15.4, this is why we assume the minimum header length which is hard_header_len. This contains fc and sequence fields. These can evaluated by driver layer without additional checks. We currently don't support to set the FCS from userspace, so we need to subtract this from mtu size as well. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add comments for llsec issuesAlexander Aring2015-09-302-0/+8
| | | | | | | | | | | | | | | While doing a little test with the llsec implementation I saw these issues. We should move decryption and encruption somewhere else, otherwise while capturing with wireshark the mac header shows secuirty fields but the payload is plaintext. A complete other issue is what doing with HardMAC drivers where the payload is always plaintext. I think we need a special handling then in userspace. We currently doesn't support any HardMAC transceivers, so we should fix the first issue for SoftMAC transceivers. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: add support for security layerAlexander Aring2015-09-301-0/+205
| | | | | | | | | | | | | This patch adds support for accessing mac802154 llsec implementation over nl802154. I added for a new Kconfig entry to provide this functionality CONFIG_IEEE802154_NL802154_EXPERIMENTAL. This interface is still in development. It provides to change security parameters and add/del/dump entries of security tables. Later we can add also a get to get an entry by unique identifier. Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: iface: assume big endian for af_packetAlexander Aring2015-09-241-5/+3
| | | | | | | | | | | | | The callback "create" and "parse" from header_ops are called from netdev core upper-layer functionality, like af_packet. These callbacks assumes big endian for addresses and we should not introduce a special byteordering handling for ieee802154 over af_packet in userspace. We have an identical issue with setting the mac address which also assumes big endian byteordering. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: tx: add warning if MTU exceedsAlexander Aring2015-09-221-0/+11
| | | | | | | | | | Sending over AF_PACKET RAW sockets we can sending frames which exceeds MTU size. To handling it correct we need to change things in AF_PACKET which knows on RAW sockets an additional FCS is set by hardware or mac802154 transmit functionality. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: change needed headroom/tailroomAlexander Aring2015-09-222-6/+14
| | | | | | | | | | | | | | | | | | | | | This patch cleanups needed_headroom, needed_tailroom and hard_header_len fields for wpan and lowpan interfaces. For wpan interfaces the worst case mac header len should be part of needed_headroom, currently this is set as hard_header_len, but hard_header_len should be set to the minimum header length which xmit call assumes and this is the minimum frame length of 802.15.4. The hard_header_len value will check inside send callbacl of AF_PACKET raw sockets. For lowpan interfaces, if fragmentation isn't needed the skb will call dev_hard_header for 802154 layer and queue it afterwards. This happens without new skb allocation, so we need the same headroom and tailroom lengths like 802154 inside 802154 6lowpan layer. At least we assume as minimum header length an ipv6 header size. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: introduce wpan_dev_header_opsAlexander Aring2015-09-221-12/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current header_ops callback structure of net device are used mostly from 802.15.4 upper-layers. Because this callback structure is a very generic one, which is also used by e.g. DGRAM AF_PACKET sockets, we can't make this callback structure 802.15.4 specific which is currently is. I saw the smallest "constraint" for calling this callback with dev_hard_header/dev_parse_header by AF_PACKET which assign a 8 byte array for address void pointers. Currently 802.15.4 specific protocols like af802154 and 6LoWPAN will assign the "struct ieee802154_addr" as these parameters which is greater than 8 bytes. The current callback implementation for header_ops.create assumes always a complete "struct ieee802154_addr" which AF_PACKET can't never handled and is greater than 8 bytes. For that reason we introduce now a "generic" create/parse header_ops callback which allows handling with intra-pan extended addresses only. This allows a small use-case with AF_PACKET to send "somehow" a valid dataframe over DGRAM. To keeping the current dev_hard_header behaviour we introduce a similar callback structure "wpan_dev_header_ops" which contains 802.15.4 specific upper-layer header creation functionality, which can be called by wpan_dev_hard_header. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: llsec: fix device deletion from listAlexander Aring2015-09-221-0/+1
| | | | | | | | | This patch adds a missing list_del when a device description will be deleted. Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add ack request default handlingAlexander Aring2015-08-101-0/+11
| | | | | | | | | | | This patch introduce a new mib entry which isn't part of 802.15.4 but useful as default behaviour to set the ack request bit or not if we don't know if the ack request bit should set. This is currently used for stacks like IEEE 802.15.4 6LoWPAN. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: change frame_retries behaviourAlexander Aring2015-08-102-8/+4
| | | | | | | | | | | | | | | | | | | This patch changes the default minimum value of frame_retries to 0 and changes the frame_retries default value to 3 which is also 802.15.4 default. We don't use the frame_retries "-1" value as indicator for no-aret mode anymore, instead we checking on the ack request bit inside the 802.15.4 frame control field. This allows a acknowledge handling per frame. This checking is done by transceiver or inside xmit callback of driver layer. If a transceiver doesn't support ARET handling the transmit functionality ignores ack frames then, which isn't well but should not effect anything of current functionality. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: cfg: remove test and set checksAlexander Aring2015-08-101-16/+0
| | | | | | | | | | | | | | | | This patch removes several checks if a value is really changed. This makes only sense if we have another layer call e.g. calling the driver_ops which is done by callbacks like "set_channel". For MAC settings which need to be set by phy registers (if the phy supports that handling) this is set by doing an interface up currently and are not direct driver_ops calls, so we remove the checks from these configuration callbacks. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Suggested-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: fix wpan mac setting while lowpan is thereAlexander Aring2015-08-101-0/+15
| | | | | | | | | | | | | | | | | | | | If we currently change the mac address inside the wpan interface while we have a lowpan interface on top of the wpan interface, the mac address setting doesn't reach the lowpan interface. The effect would be that the IPv6 lowpan interface has the old SLAAC address and isn't working anymore because the lowpan interface use in internal mechanism sometimes dev->addr which is the old mac address of the wpan interface. This patch checks if a wpan interface belongs to lowpan interface, if yes then we need to check if the lowpan interface is down and change the mac address also at the lowpan interface. When the lowpan interface will be set up afterwards, it will use the correct SLAAC address which based on the updated mac address setting. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Tested-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: Fix memory corruption with global deferred transmit state.Lennert Buytenhek2015-07-303-21/+12
| | | | | | | | | | | | | | | | | | | When transmitting a packet via a mac802154 driver that can sleep in its transmit function, mac802154 defers the call to the driver's transmit function to a per-device workqueue. However, mac802154 uses a single global work_struct for this, which means that if you have more than one registered mac802154 interface in the system, and you transmit on more than one of them at the same time, you'll very easily cause memory corruption. This patch moves the deferred transmit processing state from global variables to struct ieee802154_local, and this seems to fix the memory corruption issue. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: fix ieee802154_rx handlingVarka Bhadram2015-07-233-4/+3
| | | | | | | | | Instead of passing ieee802154_hw pointer to ieee802154_rx, we can directly pass the ieee802154_local pointer. Signed-off-by: Varka Bhadram <varkabhadram@gmail.com> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: do not export ieee802154_rx()Varka Bhadram2015-07-232-1/+1
| | | | | | | | | | | | Right now there are no other users for ieee802154_rx() in kernel. So lets remove EXPORT_SYMBOL() for this. Also it moves the function prototype from global header file to local header file. Signed-off-by: Varka Bhadram <varkabhadram@gmail.com> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: cfg: add suspend and resume callbacksAlexander Aring2015-07-233-2/+54
| | | | | | | | | | | | | | | | | | | This patch introduces suspend and resume callbacks to mac802154. When doing suspend we calling the stop driver callback which should stop the receiving of frames. A transceiver should go into low-power mode then. Calling resume will call the start driver callback, which starts receiving again and allow to transmit frames. This was tested only with the fakelb driver and a qemu vm by doing the following commands: echo "devices" > /sys/power/pm_test echo "freeze" > /sys/power/state while doing some high traffic between two fakelb phys. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: util: add stop_device utility functionAlexander Aring2015-07-233-5/+11
| | | | | | | | This patch adds ieee802154_stop_device for preparing a utility function to stop the ieee802154 device. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: remove unused macroVarka Bhadram2015-07-231-2/+0
| | | | | | | | This patch removes the unused macro which was removed with the rework of linux-wpan kernel. Signed-off-by: Varka Bhadram <varkab@cdac.in> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: use WARN_ON() macroVarka Bhadram2015-07-231-4/+2
| | | | | | | | | This patch will generate the warning if the required driver ops were not defined. Also it removes unnecessary debug message. Signed-off-by: Varka Bhadram <varkab@cdac.in> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add llsec address update workaroundAlexander Aring2015-07-233-3/+15
| | | | | | | | | | | | | This patch adds a workaround for using the new nl802154 netlink interface with the old ieee802154 netlink interface togehter. The nl802154 currently supports no access for llsec layer, currently there are users outside which are using both interfaces at the same time. This patch adds a necessary call when addresses are updated. Reported-by: Simon Vincent <simon.vincent@xsilon.com> Suggested-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2015-06-2513-248/+555
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: 1) Add TX fast path in mac80211, from Johannes Berg. 2) Add TSO/GRO support to ibmveth, from Thomas Falcon 3) Move away from cached routes in ipv6, just like ipv4, from Martin KaFai Lau. 4) Lots of new rhashtable tests, from Thomas Graf. 5) Run ingress qdisc lockless, from Alexei Starovoitov. 6) Allow servers to fetch TCP packet headers for SYN packets of new connections, for fingerprinting. From Eric Dumazet. 7) Add mode parameter to pktgen, for testing receive. From Alexei Starovoitov. 8) Cache access optimizations via simplifications of build_skb(), from Alexander Duyck. 9) Move page frag allocator under mm/, also from Alexander. 10) Add xmit_more support to hv_netvsc, from KY Srinivasan. 11) Add a counter guard in case we try to perform endless reclassify loops in the packet scheduler. 12) Extern flow dissector to be programmable and use it in new "Flower" classifier. From Jiri Pirko. 13) AF_PACKET fanout rollover fixes, performance improvements, and new statistics. From Willem de Bruijn. 14) Add netdev driver for GENEVE tunnels, from John W Linville. 15) Add ingress netfilter hooks and filtering, from Pablo Neira Ayuso. 16) Fix handling of epoll edge triggers in TCP, from Eric Dumazet. 17) Add an ECN retry fallback for the initial TCP handshake, from Daniel Borkmann. 18) Add tail call support to BPF, from Alexei Starovoitov. 19) Add several pktgen helper scripts, from Jesper Dangaard Brouer. 20) Add zerocopy support to AF_UNIX, from Hannes Frederic Sowa. 21) Favor even port numbers for allocation to connect() requests, and odd port numbers for bind(0), in an effort to help avoid ip_local_port_range exhaustion. From Eric Dumazet. 22) Add Cavium ThunderX driver, from Sunil Goutham. 23) Allow bpf programs to access skb_iif and dev->ifindex SKB metadata, from Alexei Starovoitov. 24) Add support for T6 chips in cxgb4vf driver, from Hariprasad Shenai. 25) Double TCP Small Queues default to 256K to accomodate situations like the XEN driver and wireless aggregation. From Wei Liu. 26) Add more entropy inputs to flow dissector, from Tom Herbert. 27) Add CDG congestion control algorithm to TCP, from Kenneth Klette Jonassen. 28) Convert ipset over to RCU locking, from Jozsef Kadlecsik. 29) Track and act upon link status of ipv4 route nexthops, from Andy Gospodarek. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1670 commits) bridge: vlan: flush the dynamically learned entries on port vlan delete bridge: multicast: add a comment to br_port_state_selection about blocking state net: inet_diag: export IPV6_V6ONLY sockopt stmmac: troubleshoot unexpected bits in des0 & des1 net: ipv4 sysctl option to ignore routes when nexthop link is down net: track link-status of ipv4 nexthops net: switchdev: ignore unsupported bridge flags net: Cavium: Fix MAC address setting in shutdown state drivers: net: xgene: fix for ACPI support without ACPI ip: report the original address of ICMP messages net/mlx5e: Prefetch skb data on RX net/mlx5e: Pop cq outside mlx5e_get_cqe net/mlx5e: Remove mlx5e_cq.sqrq back-pointer net/mlx5e: Remove extra spaces net/mlx5e: Avoid TX CQE generation if more xmit packets expected net/mlx5e: Avoid redundant dev_kfree_skb() upon NOP completion net/mlx5e: Remove re-assignment of wq type in mlx5e_enable_rq() net/mlx5e: Use skb_shinfo(skb)->gso_segs rather than counting them net/mlx5e: Static mapping of netdev priv resources to/from netdev TX queues net/mlx4_en: Use HW counters for rx/tx bytes/packets in PF device ...
| * mac802154: iface: cleanup stack variableAlexander Aring2015-06-171-1/+1
| | | | | | | | | | | | | | | | There is no need to init res with zero, res can be unused but then we returning zero and not res. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: iface: fix order while interface upAlexander Aring2015-06-171-48/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the hardware setting before calling the driver start callback which activates the receive handling. The hardware setup contains settings like address filtering which should be setup before activate the receive handling on the transceiver. These setting are protected by ieee802154_check_concurrent_iface check. This means we need to set these registers once before calling drv_start and can't be overwritten by other interfaces. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: iface: flush workqueue before stopAlexander Aring2015-06-151-0/+1
| | | | | | | | | | | | | | | | | | This patch flushs the workqueue which is currently used for xmit_sync callback before calling stop driver-ops. Flush the queue will ensure all pending tx frames are transmitted. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: iface: fix hrtimer cancel on ifdownAlexander Aring2015-06-151-3/+3
| | | | | | | | | | | | | | | | | | | | | | The interframe spacing timer is a per phy definition and is part of a ieee802154_local structure. If we have possible multiple interfaces ifdown one interface then the timer should not be cancled. First if the last interface is down and the receive handling is stopped we should be sure that the interframe spacing timer isn't run anymore. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: rx packet handle cleanupVarka Bhadram2015-06-151-2/+4
| | | | | | | | | | | | | | | | | | This patch replaces !netif_running(sdata->dev) with !ieee802154_sdata_running(sdata) and also devide the code two separate if branches. Signed-off-by: Varka Bhadram <varkab@cdac.in> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154/iface: remove superfluous WARN_ON call in slave_open()Stefan Schmidt2015-06-091-1/+0
| | | | | | | | | | | | | | | | | | | | This call was used before we aligned our code with the wireless code base. We are wanted to handle this in the err: code path. Which would actually not work because the WARN_ON() macro would reset the res value to 0 and thus we would never hit err:. Removing it makes the code do what we actually intend. Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: remove unneeded vif structAlexander Aring2015-06-073-9/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the virtual interface structure from sub if data struct, because it isn't used anywhere. This structure could be useful for give per interface information at softmac driver layer. Nevertheless there exist no use case currently and it contains the interface type information currently. This information is also stored inside wpan dev which is now used to check on the wpan dev interface type. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Acked-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: add trace functionality for driver opsVarka Bhadram2015-06-024-15/+362
| | | | | | | | | | | | | | | | This patch adds trace events for driver operations. Signed-off-by: Varka Bhadram <varkab@cdac.in> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * ieee802154: Fix EUI-64 station address validation.Lennert Buytenhek2015-05-311-2/+2
| | | | | | | | | | | | | | | | | | Refuse to allow setting an EUI-64 group address as an interface address, as those are not valid station addresses. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * nl802154: add support to set cca ed levelAlexander Aring2015-05-271-0/+19
| | | | | | | | | | | | | | | | | | This patch adds support for setting the current cca ed level value over nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * ieee802154: add set transmit power supportVarka Bhadram2015-05-271-0/+19
| | | | | | | | | | | | | | | | | | This patch adds transmission power setting support for IEEE-802.15.4 devices via nl802154. Signed-off-by: Varka Bhadram <varkab@cdac.in> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: mac802154_mlme_start_req() optimisation.Lennert Buytenhek2015-05-261-18/+11
| | | | | | | | | | | | | | | | | | | | | | mac802154_mlme_start_req() calls ieee802154_mlme_ops(dev)->llsec->set_params() on the net_device passed into it, however, this net_device will always be a mac802154 net_device, so just call mac802154_set_params() directly instead. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: Avoid rtnl deadlock in mac802154_wpan_ioctl().Lennert Buytenhek2015-05-261-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ->ndo_do_ioctl() can be entered with the rtnl lock already held, for example when sending a wext ioctl to a device (in which case the rtnl lock is taken by wext_ioctl_dispatch()), but mac802154_wpan_ioctl() currently unconditionally takes the rtnl lock on entry, which can cause deadlocks. To fix this, bail out of mac802154_wpan_ioctl() before taking the rtnl lock if the ioctl cmd is not one of the cmds we implement. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * mac802154: remove mib lockAlexander Aring2015-05-235-73/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the mib lock. The new locking mechanism is to protect the mib values with the rtnl lock. Note that this isn't always necessary if we have an interface up the most mib values are readonly (e.g. address settings). With this behaviour we can remove locking in hotpath like frame parsing completely. It depends on context if we need to hold the rtnl lock or not, this makes the callbacks of ieee802154_mlme_ops unnecessary because these callbacks hols always the locks. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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