- 07 Jan, 2015 16 commits
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Antonio Quartulli authored
Reported-by: checkpatch Signed-off-by:
Antonio Quartulli <antonio@meshcoding.com> Signed-off-by:
Marek Lindner <mareklindner@neomailbox.ch>
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Martin Hundebøll authored
Since other network components (and some drivers) uses the control block provided in skb's, the network coding feature might wrongly assume that an SKB has been decoded, and thus not try to code it with another packet again. This happens for instance when batman-adv is running on a bridge device. Fix this by clearing the control block for every received SKB. Introduced by 3c12de9a ("batman-adv: network coding - code and transmit packets if possible") Signed-off-by:
Martin Hundebøll <martin@hundeboll.net> Signed-off-by:
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Antonio Quartulli authored
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Antonio Quartulli authored
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Antonio Quartulli authored
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Antonio Quartulli authored
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Antonio Quartulli authored
Signed-off-by:
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Martin Hundebøll authored
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Martin Hundebøll authored
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Martin Hundebøll authored
Signed-off-by:
Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by:
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Martin Hundebøll authored
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Simon Wunderlich authored
This variable became obsolete when changing to the new bonding mechanism based on the multi interface optimization. Since its not used anywhere, remove it. Reported-by:
Linus Lüssing <linus.luessing@web.de> Signed-off-by:
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Antonio Quartulli authored
Cc: Linus Lüssing <linus.luessing@web.de> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: "Just a pile of random fixes, including: 1) Do not apply TSO limits to non-TSO packets, fix from Herbert Xu. 2) MDI{,X} eeprom check in e100 driver is reversed, from John W. Linville. 3) Missing error return assignments in several ethernet drivers, from Julia Lawall. 4) Altera TSE device doesn't come back up after ifconfig down/up sequence, fix from Kostya Belezko. 5) Add more cases to the check for whether the qmi_wwan device has a bogus MAC address and needs to be assigned a random one. From Kristian Evensen. 6) Fix interrupt hangs in CPSW, from Felipe Balbi. 7) Implement ndo_features_check in r8152 so that the stack doesn't feed GSO packets which are outside of the chip's capabilities. From Hayes Wang" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits) qla3xxx: don't allow never end busy loop xen-netback: fixing the propagation of the transmit shaper timeout r8152: support ndo_features_check batman-adv: fix potential TT client + orig-node memory leak batman-adv: fix multicast counter when purging originators batman-adv: fix counter for multicast supporting nodes batman-adv: fix lock class for decoding hash in network-coding.c batman-adv: fix delayed foreign originator recognition batman-adv: fix and simplify condition when bonding should be used Revert "mac80211: Fix accounting of the tailroom-needed counter" net: ethernet: cpsw: fix hangs with interrupts enic: free all rq buffs when allocation fails qmi_wwan: Set random MAC on devices with buggy fw openvswitch: Consistently include VLAN header in flow and port stats. tcp: Do not apply TSO segment limit to non-TSO packets Altera TSE: Add missing phydev net/mlx4_core: Fix error flow in mlx4_init_hca() net/mlx4_core: Correcly update the mtt's offset in the MR re-reg flow qlcnic: Fix return value in qlcnic_probe() net: axienet: fix error return code ... -
git://git.code.sf.net/p/openipmi/linux-ipmiLinus Torvalds authored
Pull IPMI fixlet from Corey Minyard: "Fix a compile warning" * tag 'for-linus-3' of git://git.code.sf.net/p/openipmi/linux-ipmi: ipmi: Fix compile warning with tv_usec
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- 06 Jan, 2015 24 commits
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Feng Kan authored
This adds support for APM X-Gene ethernet driver to use ACPI table to derive ethernet driver parameter. Signed-off-by:
Feng Kan <fkan@apm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Andy Shevchenko authored
The counter variable wasn't increased at all which may stuck under certain circumstances. Signed-off-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by:
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Andy Fleming authored
The Freescale mEMAC supports operating at 10/100/1000/10G, and its associated MDIO controller is likewise capable of operating both Clause 22 and Clause 45 MDIO buses. It is nearly identical to the MDIO controller on the XGMAC, so we just modify that driver. Portions of this driver developed by: Sandeep Singh <sandeep@freescale.com> Roy Zang <tie-fei.zang@freescale.com> Signed-off-by:
Andy Fleming <afleming@gmail.com> Signed-off-by:
Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by:
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Ed Swierk authored
This patch extends the ethtool plugin module eeprom API to support cards whose phy support is delegated to a separate driver. The handlers for ETHTOOL_GMODULEINFO and ETHTOOL_GMODULEEEPROM call the module_info and module_eeprom functions if the phy driver provides them; otherwise the handlers call the equivalent ethtool_ops functions provided by network drivers with built-in phy support. Signed-off-by:
Ed Swierk <eswierk@skyportsystems.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 bugfixes from Ted Ts'o: "Revert a potential seek_data/hole regression which shows up when using ext4 to handle ext3 file systems, plus two minor bug fixes" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: remove spurious KERN_INFO from ext4_warning call Revert "ext4: fix suboptimal seek_{data,hole} extents traversial" ext4: prevent online resize with backup superblock
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Linus Torvalds authored
Jay Foad reports that the address sanitizer test (asan) sometimes gets confused by a stack pointer that ends up being outside the stack vma that is reported by /proc/maps. This happens due to an interaction between RLIMIT_STACK and the guard page: when we do the guard page check, we ignore the potential error from the stack expansion, which effectively results in a missing guard page, since the expected stack expansion won't have been done. And since /proc/maps explicitly ignores the guard page (commit d7824370: "mm: fix up some user-visible effects of the stack guard page"), the stack pointer ends up being outside the reported stack area. This is the minimal patch: it just propagates the error. It also effectively makes the guard page part of the stack limit, which in turn measn that the actual real stack is one page less than the stack limit. Let's see if anybody notices. We could teach acct_stack_growth() to allow an extra page for a grow-up/grow-down stack in the rlimit test, but I don't want to add more complexity if it isn't needed. Reported-and-tested-by:
Jay Foad <jay.foad@gmail.com> Cc: stable@vger.kernel.org Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.open-mesh.org/linux-mergeDavid S. Miller authored
Included changes: - ensure bonding is used (if enabled) for packets coming in the soft interface - fix race condition to avoid orig_nodes to be deleted right after being added - avoid false positive lockdep splats by assigning lockclass to the proper hashtable lock objects - avoid miscounting of multicast 'disabled' nodes in the network - fix memory leak in the Global Translation Table in case of originator interval change Signed-off-by: -
Palik, Imre authored
Since e9ce7cb6 ("xen-netback: Factor queue-specific data into queue struct"), the transimt shaper timeout is always set to 0. The value the user sets via xenbus is never propagated to the transmit shaper. This patch fixes the issue. Cc: Anthony Liguori <aliguori@amazon.com> Signed-off-by:
Imre Palik <imrep@amazon.de> Acked-by:
Ian Campbell <ian.campbell@citrix.com> Signed-off-by:
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Shrikrishna Khare authored
Rx ring 2 size can be configured by adjusting rx-jumbo parameter of ethtool -G. Signed-off-by:
Ramya Bolla <bollar@vmware.com> Signed-off-by:
Shreyas Bhatewara <sbhatewara@vmware.com> Signed-off-by:
Shrikrishna Khare <skhare@vmware.com> Signed-off-by:
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David S. Miller authored
Merge tag 'mac80211-for-davem-2015-01-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Here's just a single fix - a revert of a patch that broke the p54 and cw2100 drivers (arguably due to bad assumptions there.) Since this affects kernels since 3.17, I decided to revert for now and we'll revisit this optimisation properly for -next. Signed-off-by:
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hayeswang authored
Support ndo_features_check to avoid: - the transport offset is more than the hw limitation when using hw checksum. - the skb->len of a GSO packet is more than the limitation. Signed-off-by:
Hayes Wang <hayeswang@realtek.com> Signed-off-by:
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Richard Cochran authored
This driver makes use of the clocksource code. Previously it had only included the proper header indirectly, but that chain was inadvertently broken by 74d23cc7 "time: move the timecounter/cyclecounter code into its own file." This patch fixes the issue by including clocksource.h directly. Signed-off-by:
Richard Cochran <richardcochran@gmail.com> Signed-off-by:
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Hariprasad Shenai authored
Signed-off-by:
Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by:
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Linus Lüssing authored
This patch fixes a potential memory leak which can occur once an originator times out. On timeout the according global translation table entry might not get purged correctly. Furthermore, the non purged TT entry will cause its orig-node to leak, too. Which additionally can lead to the new multicast optimization feature not kicking in because of a therefore bogus counter. In detail: The batadv_tt_global_entry->orig_list holds the reference to the orig-node. Usually this reference is released after BATADV_PURGE_TIMEOUT through: _batadv_purge_orig()-> batadv_purge_orig_node()->batadv_update_route()->_batadv_update_route()-> batadv_tt_global_del_orig() which purges this global tt entry and releases the reference to the orig-node. However, if between two batadv_purge_orig_node() calls the orig-node timeout grew to 2*BATADV_PURGE_TIMEOUT then this call path isn't reached. Instead the according orig-node is removed from the originator hash in _batadv_purge_orig(), the batadv_update_route() part is skipped and won't be reached anymore. Fixing the issue by moving batadv_tt_global_del_orig() out of the rcu callback. Signed-off-by:
Linus Lüssing <linus.luessing@c0d3.blue> Acked-by:
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Linus Lüssing authored
When purging an orig_node we should only decrease counter tracking the number of nodes without multicast optimizations support if it was increased through this orig_node before. A not yet quite initialized orig_node (meaning it did not have its turn in the mcast-tvlv handler so far) which gets purged would not adhere to this and will lead to a counter imbalance. Fixing this by adding a check whether the orig_node is mcast-initalized before decreasing the counter in the mcast-orig_node-purging routine. Introduced by 60432d75 ("batman-adv: Announce new capability via multicast TVLV") Reported-by:
Tobias Hachmer <tobias@hachmer.de> Signed-off-by:
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Linus Lüssing authored
A miscounting of nodes having multicast optimizations enabled can lead to multicast packet loss in the following scenario: If the first OGM a node receives from another one has no multicast optimizations support (no multicast tvlv) then we are missing to increase the counter. This potentially leads to the wrong assumption that we could safely use multicast optimizations. Fixings this by increasing the counter if the initial OGM has the multicast TVLV unset, too. Introduced by 60432d75 ("batman-adv: Announce new capability via multicast TVLV") Reported-by:
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Martin Hundebøll authored
batadv_has_set_lock_class() is called with the wrong hash table as first argument (probably due to a copy-paste error), which leads to false positives when running with lockdep. Introduced-by: 612d2b4f ("batman-adv: network coding - save overheard and tx packets for decoding") Signed-off-by:
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Linus Lüssing authored
Currently it can happen that the reception of an OGM from a new originator is not being accepted. More precisely it can happen that an originator struct gets allocated and initialized (batadv_orig_node_new()), even the TQ gets calculated and set correctly (batadv_iv_ogm_calc_tq()) but still the periodic orig_node purging thread will decide to delete it if it has a chance to jump between these two function calls. This is because batadv_orig_node_new() initializes the last_seen value to zero and its caller (batadv_iv_ogm_orig_get()) makes it visible to other threads by adding it to the hash table already. batadv_iv_ogm_calc_tq() will set the last_seen variable to the correct, current time a few lines later but if the purging thread jumps in between that it will think that the orig_node timed out and will wrongly schedule it for deletion already. If the purging interval is the same as the originator interval (which is the default: 1 second), then this game can continue for several rounds until the random OGM jitter added enough difference between these two (in tests, two to about four rounds seemed common). Fixing this by initializing the last_seen variable of an orig_node to the current time before adding it to the hash table. Signed-off-by:
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Simon Wunderlich authored
The current condition actually does NOT consider bonding when the interface the packet came in from is the soft interface, which is the opposite of what it should do (and the comment describes). Fix that and slightly simplify the condition. Reported-by:
Ray Gibson <booray@gmail.com> Signed-off-by:
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David S. Miller authored
Daniel Borkmann says: ==================== net: allow setting congctl via routing table This is the second part of our work and allows for setting the congestion control algorithm via routing table. For details, please see individual patches. Since patch 1 is a bug fix, we suggest applying patch 1 to net, and then merging net into net-next, for example, and following up with the remaining feature patches wrt dependencies. Joint work with Florian Westphal, suggested by Hannes Frederic Sowa. Patch for iproute2 is available under [1], but will be reposted with along with the man-page update when this set hits net-next. [1] http://patchwork.ozlabs.org/patch/418149/ Thanks! v2 -> v3: - Added module auto-loading as suggested by David Miller, thanks! - Added patch 2 for handling possible sleeps in fib6 - While working on this, we discovered a bug, hence fix in patch 1 - Added auto-loading to patch 4 - Rebased, retested, rest the same. v1 -> v2: - Very sorry, I noticed I had decnet disabled during testing. Added missing header include in decnet, rest as is. ==================== Signed-off-by:
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Daniel Borkmann authored
This work adds the possibility to define a per route/destination congestion control algorithm. Generally, this opens up the possibility for a machine with different links to enforce specific congestion control algorithms with optimal strategies for each of them based on their network characteristics, even transparently for a single application listening on all links. For our specific use case, this additionally facilitates deployment of DCTCP, for example, applications can easily serve internal traffic/dsts in DCTCP and external one with CUBIC. Other scenarios would also allow for utilizing e.g. long living, low priority background flows for certain destinations/routes while still being able for normal traffic to utilize the default congestion control algorithm. We also thought about a per netns setting (where different defaults are possible), but given its actually a link specific property, we argue that a per route/destination setting is the most natural and flexible. The administrator can utilize this through ip-route(8) by appending "congctl [lock] <name>", where <name> denotes the name of a congestion control algorithm and the optional lock parameter allows to enforce the given algorithm so that applications in user space would not be allowed to overwrite that algorithm for that destination. The dst metric lookups are being done when a dst entry is already available in order to avoid a costly lookup and still before the algorithms are being initialized, thus overhead is very low when the feature is not being used. While the client side would need to drop the current reference on the module, on server side this can actually even be avoided as we just got a flat-copied socket clone. Joint work with Florian Westphal. Suggested-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
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Daniel Borkmann authored
This patch adds the minimum necessary for the RTAX_CC_ALGO congestion control metric to be set up and dumped back to user space. While the internal representation of RTAX_CC_ALGO is handled as a u32 key, we avoided to expose this implementation detail to user space, thus instead, we chose the netlink attribute that is being exchanged between user space to be the actual congestion control algorithm name, similarly as in the setsockopt(2) API in order to allow for maximum flexibility, even for 3rd party modules. It is a bit unfortunate that RTAX_QUICKACK used up a whole RTAX slot as it should have been stored in RTAX_FEATURES instead, we first thought about reusing it for the congestion control key, but it brings more complications and/or confusion than worth it. Joint work with Florian Westphal. Signed-off-by:
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Daniel Borkmann authored
This patch adds necessary infrastructure to the congestion control framework for later per route congestion control support. For a per route congestion control possibility, our aim is to store a unique u32 key identifier into dst metrics, which can then be mapped into a tcp_congestion_ops struct. We argue that having a RTAX key entry is the most simple, generic and easy way to manage, and also keeps the memory footprint of dst entries lower on 64 bit than with storing a pointer directly, for example. Having a unique key id also allows for decoupling actual TCP congestion control module management from the FIB layer, i.e. we don't have to care about expensive module refcounting inside the FIB at this point. We first thought of using an IDR store for the realization, which takes over dynamic assignment of unused key space and also performs the key to pointer mapping in RCU. While doing so, we stumbled upon the issue that due to the nature of dynamic key distribution, it just so happens, arguably in very rare occasions, that excessive module loads and unloads can lead to a possible reuse of previously used key space. Thus, previously stale keys in the dst metric are now being reassigned to a different congestion control algorithm, which might lead to unexpected behaviour. One way to resolve this would have been to walk FIBs on the actually rare occasion of a module unload and reset the metric keys for each FIB in each netns, but that's just very costly. Therefore, we argue a better solution is to reuse the unique congestion control algorithm name member and map that into u32 key space through jhash. For that, we split the flags attribute (as it currently uses 2 bits only anyway) into two u32 attributes, flags and key, so that we can keep the cacheline boundary of 2 cachelines on x86_64 and cache the precalculated key at registration time for the fast path. On average we might expect 2 - 4 modules being loaded worst case perhaps 15, so a key collision possibility is extremely low, and guaranteed collision-free on LE/BE for all in-tree modules. Overall this results in much simpler code, and all without the overhead of an IDR. Due to the deterministic nature, modules can now be unloaded, the congestion control algorithm for a specific but unloaded key will fall back to the default one, and on module reload time it will switch back to the expected algorithm transparently. Joint work with Florian Westphal. Signed-off-by:
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Daniel Borkmann authored
We can just move this to an extra function and make the code a bit more readable, no functional change. Joint work with Florian Westphal. Signed-off-by:
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