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2013-05-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-5/+6
Pull networking updates from David Miller: "Highlights (1721 non-merge commits, this has to be a record of some sort): 1) Add 'random' mode to team driver, from Jiri Pirko and Eric Dumazet. 2) Make it so that any driver that supports configuration of multiple MAC addresses can provide the forwarding database add and del calls by providing a default implementation and hooking that up if the driver doesn't have an explicit set of handlers. From Vlad Yasevich. 3) Support GSO segmentation over tunnels and other encapsulating devices such as VXLAN, from Pravin B Shelar. 4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton. 5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita Dukkipati. 6) In the PHY layer, allow supporting wake-on-lan in situations where the PHY registers have to be written for it to be configured. Use it to support wake-on-lan in mv643xx_eth. From Michael Stapelberg. 7) Significantly improve firewire IPV6 support, from YOSHIFUJI Hideaki. 8) Allow multiple packets to be sent in a single transmission using network coding in batman-adv, from Martin Hundebøll. 9) Add support for T5 cxgb4 chips, from Santosh Rastapur. 10) Generalize the VXLAN forwarding tables so that there is more flexibility in configurating various aspects of the endpoints. From David Stevens. 11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver, from Dmitry Kravkov. 12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo Neira Ayuso. 13) Start adding networking selftests. 14) In situations of overload on the same AF_PACKET fanout socket, or per-cpu packet receive queue, minimize drop by distributing the load to other cpus/fanouts. From Willem de Bruijn and Eric Dumazet. 15) Add support for new payload offset BPF instruction, from Daniel Borkmann. 16) Convert several drivers over to mdoule_platform_driver(), from Sachin Kamat. 17) Provide a minimal BPF JIT image disassembler userspace tool, from Daniel Borkmann. 18) Rewrite F-RTO implementation in TCP to match the final specification of it in RFC4138 and RFC5682. From Yuchung Cheng. 19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear you like netlink, so I implemented netlink dumping of netlink sockets.") From Andrey Vagin. 20) Remove ugly passing of rtnetlink attributes into rtnl_doit functions, from Thomas Graf. 21) Allow userspace to be able to see if a configuration change occurs in the middle of an address or device list dump, from Nicolas Dichtel. 22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes Frederic Sowa. 23) Increase accuracy of packet length used by packet scheduler, from Jason Wang. 24) Beginning set of changes to make ipv4/ipv6 fragment handling more scalable and less susceptible to overload and locking contention, from Jesper Dangaard Brouer. 25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*() instead. From Hong Zhiguo. 26) Optimize route usage in IPVS by avoiding reference counting where possible, from Julian Anastasov. 27) Convert IPVS schedulers to RCU, also from Julian Anastasov. 28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger Eitzenberger. 29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG, nfnetlink_log, and nfnetlink_queue. From Gao feng. 30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa. 31) Support several new r8169 chips, from Hayes Wang. 32) Support tokenized interface identifiers in ipv6, from Daniel Borkmann. 33) Use usbnet_link_change() helper in USB net driver, from Ming Lei. 34) Add 802.1ad vlan offload support, from Patrick McHardy. 35) Support mmap() based netlink communication, also from Patrick McHardy. 36) Support HW timestamping in mlx4 driver, from Amir Vadai. 37) Rationalize AF_PACKET packet timestamping when transmitting, from Willem de Bruijn and Daniel Borkmann. 38) Bring parity to what's provided by /proc/net/packet socket dumping and the info provided by netlink socket dumping of AF_PACKET sockets. From Nicolas Dichtel. 39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin Poirier" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits) filter: fix va_list build error af_unix: fix a fatal race with bit fields bnx2x: Prevent memory leak when cnic is absent bnx2x: correct reading of speed capabilities net: sctp: attribute printl with __printf for gcc fmt checks netlink: kconfig: move mmap i/o into netlink kconfig netpoll: convert mutex into a semaphore netlink: Fix skb ref counting. net_sched: act_ipt forward compat with xtables mlx4_en: fix a build error on 32bit arches Revert "bnx2x: allow nvram test to run when device is down" bridge: avoid OOPS if root port not found drivers: net: cpsw: fix kernel warn on cpsw irq enable sh_eth: use random MAC address if no valid one supplied 3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA) tg3: fix to append hardware time stamping flags unix/stream: fix peeking with an offset larger than data in queue unix/dgram: fix peeking with an offset larger than data in queue unix/dgram: peek beyond 0-sized skbs openvswitch: Remove unneeded ovs_netdev_get_ifindex() ...
2013-03-21filter: add minimal BPF JIT image disassemblerDaniel Borkmann1-5/+6
This is a minimal stand-alone user space helper, that allows for debugging or verification of emitted BPF JIT images. This is in particular useful for emitted opcode debugging, since minor bugs in the JIT compiler can be fatal. The disassembler is architecture generic and uses libopcodes and libbfd. How to get to the disassembly, example: 1) `echo 2 > /proc/sys/net/core/bpf_jit_enable` 2) Load a BPF filter (e.g. `tcpdump -p -n -s 0 -i eth1 host 192.168.20.0/24`) 3) Run e.g. `bpf_jit_disasm -o` to disassemble the most recent JIT code output `bpf_jit_disasm -o` will display the related opcodes to a particular instruction as well. Example for x86_64: $ ./bpf_jit_disasm 94 bytes emitted from JIT compiler (pass:3, flen:9) ffffffffa0356000 + <x>: 0: push %rbp 1: mov %rsp,%rbp 4: sub $0x60,%rsp 8: mov %rbx,-0x8(%rbp) c: mov 0x68(%rdi),%r9d 10: sub 0x6c(%rdi),%r9d 14: mov 0xe0(%rdi),%r8 1b: mov $0xc,%esi 20: callq 0xffffffffe0d01b71 25: cmp $0x86dd,%eax 2a: jne 0x000000000000003d 2c: mov $0x14,%esi 31: callq 0xffffffffe0d01b8d 36: cmp $0x6,%eax [...] 5c: leaveq 5d: retq $ ./bpf_jit_disasm -o 94 bytes emitted from JIT compiler (pass:3, flen:9) ffffffffa0356000 + <x>: 0: push %rbp 55 1: mov %rsp,%rbp 48 89 e5 4: sub $0x60,%rsp 48 83 ec 60 8: mov %rbx,-0x8(%rbp) 48 89 5d f8 c: mov 0x68(%rdi),%r9d 44 8b 4f 68 10: sub 0x6c(%rdi),%r9d 44 2b 4f 6c [...] 5c: leaveq c9 5d: retq c3 Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar1-2/+14
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Conflicts: tools/Makefile Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: . Honor parallel jobs, fix from Borislav Petkov . Introduce tools/lib/lk library, initially just removing duplication among tools/perf and tools/vm. from Borislav Petkov . Fix build on non-glibc systems due to libio.h absence, from Cody P Schafer. . Remove some perf_session and tracing dead code, from David Ahern. . Introduce perf stat --repeat forever, from Frederik Deweerdt. . Add perf test entries for checking --cpu in record and stat, from Jiri Olsa. . Add perf test entries for checking breakpoint overflow signal handler issues, from Jiri Olsa. . Add perf test entry for for checking number of EXIT events, from Namhyung Kim. . Simplify some perf_evlist methods and to allow 'stat' to share code with 'record' and 'trace'. . Remove dead code in related to libtraceevent integration, from Namhyung Kim. . Event group view for 'annotate' in --stdio, --tui and --gtk, from Namhyung Kim. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> [ resolved the trivial merge conflict with upstream ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-15perf tools: Introduce tools/lib/lk libraryBorislav Petkov1-2/+14
This introduces the tools/lib/lk library, that will gradually have the routines that now are used in tools/perf/ and other tools and that can be shared. Start by carving out debugfs routines for general use. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1361374353-30385-5-git-send-email-bp@alien8.de [ committer note: Add tools/lib/lk/ to perf's MANIFEST so that its tarballs continue to build ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-02-20Merge branch 'for-3.9' of ↵Linus Torvalds1-9/+10
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup changes from Tejun Heo: "Nothing too drastic. - Removal of synchronize_rcu() from userland visible paths. - Various fixes and cleanups from Li. - cgroup_rightmost_descendant() added which will be used by cpuset changes (it will be a separate pull request)." * 'for-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: fail if monitored file and event_control are in different cgroup cgroup: fix cgroup_rmdir() vs close(eventfd) race cpuset: fix cpuset_print_task_mems_allowed() vs rename() race cgroup: fix exit() vs rmdir() race cgroup: remove bogus comments in cgroup_diput() cgroup: remove synchronize_rcu() from cgroup_diput() cgroup: remove duplicate RCU free on struct cgroup sched: remove redundant NULL cgroup check in task_group_path() sched: split out css_online/css_offline from tg creation/destruction cgroup: initialize cgrp->dentry before css_alloc() cgroup: remove a NULL check in cgroup_exit() cgroup: fix bogus kernel warnings when cgroup_create() failed cgroup: remove synchronize_rcu() from rebind_subsystems() cgroup: remove synchronize_rcu() from cgroup_attach_{task|proc}() cgroup: use new hashtable implementation cgroups: fix cgroup_event_listener error handling cgroups: move cgroup_event_listener.c to tools/cgroup cgroup: implement cgroup_rightmost_descendant() cgroup: remove unused dummy cgroup_fork_callbacks()
2013-01-30tools: Correct typo in tools MakefileBorislav Petkov1-1/+1
It should be make -C tools/ <tool>_install Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Ingo Molnar <mingo@kernel.org> Link: http://lkml.kernel.org/r/1359456492-22156-1-git-send-email-bp@alien8.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-01-07cgroups: move cgroup_event_listener.c to tools/cgroupGreg Thelen1-9/+10
Move the cgroup_event_listener.c tool from Documentation into the new tools/cgroup directory. This change involves wiring cgroup_event_listener.c into the tools/ make system so that is can be built with: $ make tools/cgroup Signed-off-by: Greg Thelen <gthelen@google.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2012-11-19tools: Define a Makefile function to do subdir processingDavid Howells1-12/+12
Define a Makefile function that can be called with $(call ...) to wrap the subdir make invocations in tools/Makefile. This will allow us in the next patch to insert bits in there to honour O= flags when called from the top-level Makefile. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Borislav Petkov <bp@amd64.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1378.1352379110@warthog.procyon.org.uk Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-04-11tools: Connect to the kernel build systemBorislav Petkov1-0/+10
Now you can do $ make tools/<toolname> from the toplevel kernel directory and have the respective tool built. If you want to build and install it, do $ make tools/<toolname>_install $ make tools/<toolname>_clean should clean the respective tool directories. If you want to clean all in tools, simply do $ make tools/clean Also, if you want to get what the possible targets are, simply calling $ make tools/ should give you the short help. $ make tools/install installs all tools, of course. Doh. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Sam Ravnborg <sam@ravnborg.org> Link: http://lkml.kernel.org/r/1334162178-17152-6-git-send-email-bp@amd64.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-04-11tools: Add a help targetBorislav Petkov1-0/+20
... and make it the default one so that calling 'make' without arguments in the tools/ directory gives you the possible targets to build along with a short description of what they are. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Sam Ravnborg <sam@ravnborg.org> Link: http://lkml.kernel.org/r/1334162178-17152-5-git-send-email-bp@amd64.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-04-11tools: Add a toplevel MakefileBorislav Petkov1-0/+47
Add a Makefile with all the targets under tools/. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Sam Ravnborg <sam@ravnborg.org> Link: http://lkml.kernel.org/r/1334162178-17152-4-git-send-email-bp@amd64.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>