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2015-12-23sfc: Retry MCDI after NO_EVB_PORT error on a VFBert Kenward
After reboot the vswitch configuration from the PF may not be complete before the VF attempts to restore filters. In that case we see NO_EVB_PORT errors from the MC. Retry up to a time limit or until a different result is seen. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-23Merge branch 'cxgb4-next'David S. Miller
Hariprasad Shenai says: ==================== Trivial enhancements for cxgb4 This series adds a debug message if adapter isn't inserted in right PCI slot. Changes naming conventions for iSCSI rx queues, use node info while allocating rx queue and use napi_complete_done() api in napi handler. This patch series has been created against net-next tree and includes patches on cxgb4 driver. We have included all the maintainers of respective drivers. Kindly review the change and let us know in case of any review comments. Thanks V2: Dropped 'dcb_info' debug entry patch, since the same can be achieved using lldp tool. Based on review comments by Or Gerlitz <gerlitz.or@gmail.com> and David Miller. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-23cxgb4: Use napi_complete_done() api in napi handlerHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-23cxgb4: Use the node info to alloc_ring() for RX queuesHariprasad Shenai
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-23cxgb4: get naming correct for iscsi queuesHariprasad Shenai
All the upper level protocols like rdma, iscsi have their own offload rx queues, so instead of using the generic naming convention be specific while naming them. Improves code readability Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-23cxgb4: Warn if device doesn't have enough PCI bandwidthHariprasad Shenai
Check if the device get enough bandwidth from the entire PCI chain to satisfy its capabilities. This patch determines the PCIe device's bandwidth capabilities by reading its PCIe Link Capabilities registers and then call the pcie_get_minimum_link function to ensure that the adapter is hooked into a slot which is capable of providing the necessary bandwidth capabilities. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22Merge branch 'bindtodevice_tw_rst'David S. Miller
Florian Westphal says: ==================== tcp: honour SO_BINDTODEVICE for TW_RST case too This is V2, this time as a small series since I followed Erics advice to split this into smaller chunks, I hope this makes it easier to review. First patch adds inet_sk_transparent helper. Second patch contains an if/else swap that I split from the original TW_RST v1 one. Third patch is the actual change without the superfluous sock_net change. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22tcp: honour SO_BINDTODEVICE for TW_RST case tooFlorian Westphal
Hannes points out that when we generate tcp reset for timewait sockets we pretend we found no socket and pass NULL sk to tcp_vX_send_reset(). Make it cope with inet tw sockets and then provide tw sk. This makes RSTs appear on correct interface when SO_BINDTODEVICE is used. Packetdrill test case: // want default route to be used, we rely on BINDTODEVICE `ip route del 192.0.2.0/24 via 192.168.0.2 dev tun0` 0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 // test case still works due to BINDTODEVICE 0.001 setsockopt(3, SOL_SOCKET, SO_BINDTODEVICE, "tun0", 4) = 0 0.100...0.200 connect(3, ..., ...) = 0 0.100 > S 0:0(0) <mss 1460,sackOK,nop,nop> 0.200 < S. 0:0(0) ack 1 win 32792 <mss 1460,sackOK,nop,nop> 0.200 > . 1:1(0) ack 1 0.210 close(3) = 0 0.210 > F. 1:1(0) ack 1 win 29200 0.300 < . 1:1(0) ack 2 win 46 // more data while in FIN_WAIT2, expect RST 1.300 < P. 1:1001(1000) ack 1 win 46 // fails without this change -- default route is used 1.301 > R 1:1(0) win 0 Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22tcp: send_reset: test for non-NULL sk firstFlorian Westphal
tcp_md5_do_lookup requires a full socket, so once we extend _send_reset() to also accept timewait socket we would have to change if (!sk && hash_location) to something like if ((!sk || !sk_fullsock(sk)) && hash_location) { ... } else { (sk && sk_fullsock(sk)) tcp_md5_do_lookup() } Switch the two branches: check if we have a socket first, then fall back to a listener lookup if we saw a md5 option (hash_location). Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22net: add inet_sk_transparent() helperFlorian Westphal
Avoids cluttering tcp_v4_send_reset when followup patch extends it to deal with timewait sockets. Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22mlxsw: core: Use devm_kzalloc to allocate mlxsw_hwmon structureJiri Pirko
KASan reported use-after-free for the hwmon structure. So fix this by using devm_kzalloc and let the core take care about freeing the memory during device dettach. Reported-by: Ido Schimmel <idosch@mellanox.com> Fixes: 89309da39 ("mlxsw: core: Implement temperature hwmon interface") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22net: tcp: deal with listen sockets properly in tcp_abort.Lorenzo Colitti
When closing a listen socket, tcp_abort currently calls tcp_done without clearing the request queue. If the socket has a child socket that is established but not yet accepted, the child socket is then left without a parent, causing a leak. Fix this by setting the socket state to TCP_CLOSE and calling inet_csk_listen_stop with the socket lock held, like tcp_close does. Tested using net_test. With this patch, calling SOCK_DESTROY on a listen socket that has an established but not yet accepted child socket results in the parent and the child being closed, such that they no longer appear in sock_diag dumps. Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22mlxsw: core: Allow to reset temperature history via hwmon interfaceJiri Pirko
Add another sysfs hwmon attribute to expose possibility to reset temperature sensors history. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22RDS: don't pretend to use cpu notifiersSebastian Andrzej Siewior
It looks like an attempt to use CPU notifier here which was never completed. Nobody tried to wire it up completely since 2k9. So I unwind this code and get rid of everything not required. Oh look! 19 lines were removed while code still does the same thing. Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Tested-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22net-sysfs: use to_net_dev in net_namespace()Geliang Tang
Use to_net_dev() instead of open-coding it. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22Merge branch '100GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 100GbE Intel Wired LAN Driver Updates 2015-12-22 This series contains updates to fm10k only. Bruce cleans up the initialization of fm10k_workqueue at the global level, which fixes a checkpatch.pl error. Made several other cleanups of the driver, like making structures that do not change constant, remove unused code, cleanup code comments and use boolean states true/false instead of an integer since a bool is all that is needed. Jacob fixed the TLV format for little endian structures which are 4 byte aligned copy, so add an additional __aligned(4) and __packed to ensure that these structures are actually 4 byte aligned and packed correctly. Updated the driver to use ether_addr_equal() instead of memcmp() to compare MAC addresses. Alex Duyck cleans up the exception handling so all of the paths result in a similar state if we fail. Specifically the driver will now unload the mailbox interrupt, free the queue vectors and MSI-X, and then detach the interface. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-22fm10k: IS_ENABLED() is not appropriate for boolean kconfig optionBruce Allan
Tri-states need 'if IS_ENABLED()', booleans should use 'ifdef'. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22fm10k: cleanup mailbox code comments etcBruce Allan
Cleanup a number of issues with function header comments, lower-case acronyms (i.e. FIFO, TLV), duplicate comments and a stubbed-out header comment for fm10k_sm_mbx_init. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22fm10k: use true/false for boolean get_host_stateBruce Allan
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22fm10k: remove unused struct elementBruce Allan
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22fm10k: constify fm10k_mac_ops, fm10k_iov_ops and fm10k_info structuresBruce Allan
These structures never change so declare them as const. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22fm10k: address operator not needed when declaring function pointersBruce Allan
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22fm10k: use ether_addr_equal instead of memcmpJacob Keller
When comparing MAC addresses, use ether_addr_equal instead of memcmp to ETH_ALEN length. Found and replaced using the following sed: sed -e 's/memcmp\x28\(.*\), ETH_ALEN\x29/!ether_addr_equal\x28\1\x29/' Reported-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22fm10k: Cleanup exception handling for changing queuesAlexander Duyck
This patch is meant to cleanup the exception handling for the paths where we reset the interrupts and then reconfigure them. In all of these paths we had very different levels of exception handling. I have updated the driver so that all of the paths should result in a similar state if we fail. Specifically the driver will now unload the mailbox interrupt, free the queue vectors and MSI-X, and then detach the interface. In addition for any of the PCIe related resets I have added a check with the hw_ready function to just make sure the registers are in a readable state prior to reopening the interface. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22fm10k: correctly pack TLV structures and explain reasoningJacob Keller
The TLV format for little endian structures is actually 4 byte aligned copy. To this end, we need to add an additional __aligned(4) marker along with __packed to ensure that these structures are actually 4 byte aligned and packed correctly. Use of just __packed will not work as this will result in 1byte alignment which is incorrect. Add a comment explaining the reasoning behind why these structures need the special treatment. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22fm10k: don't initialize fm10k_workqueue at global levelBruce Allan
Cleans up checkpatch GLOBAL_INITIALIZERS error Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-20ibmveth: consolidate kmalloc of array, memset 0 to kcallocNicholas Mc Guire
This is an API consolidation only. The use of kmalloc + memset to 0 is equivalent to kcalloc in this case as it is allocating an array of elements. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-19netcp: fix regression in receive processingArnd Bergmann
A cleanup patch I did was unfortunately wrong and introduced multiple serious bugs in the netcp rx processing, as indicated by these correct gcc warnings: drivers/net/ethernet/ti/netcp_core.c:776:14: warning: 'buf_ptr' may be used uninitialized in this function [-Wuninitialized] drivers/net/ethernet/ti/netcp_core.c:687:14: warning: 'ptr' may be used uninitialized in this function [-Wuninitialized] I have checked the patch once more and found that a call to get_pkt_info() accidentally got removed in netcp_free_rx_desc_chain, and netcp_process_one_rx_packet no longer retrieved the correct buffer length. This patch should fix all the known problems, but I did not test on real hardware. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 899077791403 ("netcp: try to reduce type confusion in descriptors") Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18asix: silence log message from oversize packetstephen hemminger
Since it is possible for an external system to send oversize packets at anytime, it is best for driver not to print a message and spam the log (potential external DoS). Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=109471 Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18tcp: diag: add support for request sockets to tcp_abort()Eric Dumazet
Adding support for SYN_RECV request sockets to tcp_abort() is quite easy after our tcp listener rewrite. Note that we also need to better handle listeners, or we might leak not yet accepted children, because of a missing inet_csk_listen_stop() call. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Lorenzo Colitti <lorenzo@google.com> Tested-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18Merge branch 'bpf-misc-updates'David S. Miller
Daniel Borkmann says: ==================== Misc BPF updates This series contains a couple of misc updates to the BPF code, besides others a new helper bpf_skb_load_bytes(), moving clearing of A/X to the classic converter, etc. Please see individual patches for details. Thanks! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18bpf, test: add couple of test casesDaniel Borkmann
Add couple of test cases for interpreter but also JITs, f.e. to test that when imm32 moves are being done, upper 32bits of the regs are being zero extended. Without JIT: [...] [ 1114.129301] test_bpf: #43 MOV REG64 jited:0 128 PASS [ 1114.130626] test_bpf: #44 MOV REG32 jited:0 139 PASS [ 1114.132055] test_bpf: #45 LD IMM64 jited:0 124 PASS [...] With JIT (generated code can as usual be nicely verified with the help of bpf_jit_disasm tool): [...] [ 1062.726782] test_bpf: #43 MOV REG64 jited:1 6 PASS [ 1062.726890] test_bpf: #44 MOV REG32 jited:1 6 PASS [ 1062.726993] test_bpf: #45 LD IMM64 jited:1 6 PASS [...] Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18bpf, x86: detect/optimize loading 0 immediatesDaniel Borkmann
When sometimes structs or variables need to be initialized/'memset' to 0 in an eBPF C program, the x86 BPF JIT converts this to use immediates. We can however save a couple of bytes (f.e. even up to 7 bytes on a single emmission of BPF_LD | BPF_IMM | BPF_DW) in the image by detecting such case and use xor on the dst register instead. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18bpf: fix misleading comment in bpf_convert_filterDaniel Borkmann
Comment says "User BPF's register A is mapped to our BPF register 6", which is actually wrong as the mapping is on register 0. This can already be inferred from the code itself. So just remove it before someone makes assumptions based on that. Only code tells truth. ;) Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18bpf: move clearing of A/X into classic to eBPF migration prologueDaniel Borkmann
Back in the days where eBPF (or back then "internal BPF" ;->) was not exposed to user space, and only the classic BPF programs internally translated into eBPF programs, we missed the fact that for classic BPF A and X needed to be cleared. It was fixed back then via 83d5b7ef99c9 ("net: filter: initialize A and X registers"), and thus classic BPF specifics were added to the eBPF interpreter core to work around it. This added some confusion for JIT developers later on that take the eBPF interpreter code as an example for deriving their JIT. F.e. in f75298f5c3fe ("s390/bpf: clear correct BPF accumulator register"), at least X could leak stack memory. Furthermore, since this is only needed for classic BPF translations and not for eBPF (verifier takes care that read access to regs cannot be done uninitialized), more complexity is added to JITs as they need to determine whether they deal with migrations or native eBPF where they can just omit clearing A/X in their prologue and thus reduce image size a bit, see f.e. cde66c2d88da ("s390/bpf: Only clear A and X for converted BPF programs"). In other cases (x86, arm64), A and X is being cleared in the prologue also for eBPF case, which is unnecessary. Lets move this into the BPF migration in bpf_convert_filter() where it actually belongs as long as the number of eBPF JITs are still few. It can thus be done generically; allowing us to remove the quirk from __bpf_prog_run() and to slightly reduce JIT image size in case of eBPF, while reducing code duplication on this matter in current(/future) eBPF JITs. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Tested-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Cc: Zi Shen Lim <zlim.lnx@gmail.com> Cc: Yang Shi <yang.shi@linaro.org> Acked-by: Yang Shi <yang.shi@linaro.org> Acked-by: Zi Shen Lim <zlim.lnx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18bpf: add bpf_skb_load_bytes helperDaniel Borkmann
When hacking tc programs with eBPF, one of the issues that come up from time to time is to load addresses from headers. In eBPF as in classic BPF, we have BPF_LD | BPF_ABS | BPF_{B,H,W} instructions that extract a byte, half-word or word out of the skb data though helpers such as bpf_load_pointer() (interpreter case). F.e. extracting a whole IPv6 address could possibly look like ... union v6addr { struct { __u32 p1; __u32 p2; __u32 p3; __u32 p4; }; __u8 addr[16]; }; [...] a.p1 = htonl(load_word(skb, off)); a.p2 = htonl(load_word(skb, off + 4)); a.p3 = htonl(load_word(skb, off + 8)); a.p4 = htonl(load_word(skb, off + 12)); [...] /* access to a.addr[...] */ This work adds a complementary helper bpf_skb_load_bytes() (we also have bpf_skb_store_bytes()) as an alternative where the same call would look like from an eBPF program: ret = bpf_skb_load_bytes(skb, off, addr, sizeof(addr)); Same verifier restrictions apply as in ffeedafbf023 ("bpf: introduce current->pid, tgid, uid, gid, comm accessors") case, where stack memory access needs to be statically verified and thus guaranteed to be initialized in first use (otherwise verifier cannot tell whether a subsequent access to it is valid or not as it's runtime dependent). Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains the first batch of Netfilter updates for the upcoming 4.5 kernel. This batch contains userspace netfilter header compilation fixes, support for packet mangling in nf_tables, the new tracing infrastructure for nf_tables and cgroup2 support for iptables. More specifically, they are: 1) Two patches to include dependencies in our netfilter userspace headers to resolve compilation problems, from Mikko Rapeli. 2) Four comestic cleanup patches for the ebtables codebase, from Ian Morris. 3) Remove duplicate include in the netfilter reject infrastructure, from Stephen Hemminger. 4) Two patches to simplify the netfilter defragmentation code for IPv6, patch from Florian Westphal. 5) Fix root ownership of /proc/net netfilter for unpriviledged net namespaces, from Philip Whineray. 6) Get rid of unused fields in struct nft_pktinfo, from Florian Westphal. 7) Add mangling support to our nf_tables payload expression, from Patrick McHardy. 8) Introduce a new netlink-based tracing infrastructure for nf_tables, from Florian Westphal. 9) Change setter functions in nfnetlink_log to be void, from Rami Rosen. 10) Add netns support to the cttimeout infrastructure. 11) Add cgroup2 support to iptables, from Tejun Heo. 12) Introduce nfnl_dereference_protected() in nfnetlink, from Florian. 13) Add support for mangling pkttype in the nf_tables meta expression, also from Florian. BTW, I need that you pull net into net-next, I have another batch that requires changes that I don't yet see in net. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18nfp: call netif_carrier_off() during initJakub Kicinski
Netdevs default to carrier on, we should call netif_carrier_off() during initialization since we handle carrier state changes in the driver. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Rolf Neugebauer <rolf.neugebauer@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18Merge branch 'l3mdev-accept'David S. Miller
David Ahern says: ==================== net: Allow accepted sockets to be bound to l3mdev domain Allow accepted sockets to derive their sk_bound_dev_if setting from the l3mdev domain in which the packets originated. This version adds a sysctl to control whether the setting is inherited, making the functionality similar to sk_mark and its sysctl_tcp_fwmark_accept setting. This effectively allow a process to have a "VRF-global" listen socket, with child sockets bound to the VRF device in which the packet originated. A similar behavior can be achieved using sk_mark, but a solution using marks is incomplete as it does not handle duplicate addresses in different L3 domains/VRFs. Allowing sockets to inherit the sk_bound_dev_if from l3mdev domain provides a complete solution. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18net: Allow accepted sockets to be bound to l3mdev domainDavid Ahern
Allow accepted sockets to derive their sk_bound_dev_if setting from the l3mdev domain in which the packets originated. A sysctl setting is added to control the behavior which is similar to sk_mark and sysctl_tcp_fwmark_accept. This effectively allow a process to have a "VRF-global" listen socket, with child sockets bound to the VRF device in which the packet originated. A similar behavior can be achieved using sk_mark, but a solution using marks is incomplete as it does not handle duplicate addresses in different L3 domains/VRFs. Allowing sockets to inherit the sk_bound_dev_if from l3mdev domain provides a complete solution. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18net: l3mdev: Add master device lookup by indexDavid Ahern
Add helper to lookup l3mdev master index given a device index. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18ipv6: addrconf: use stable address generator for ARPHRD_NONEBjørn Mork
Add a new address generator mode, using the stable address generator with an automatically generated secret. This is intended as a default address generator mode for device types with no EUI64 implementation. The new generator is used for ARPHRD_NONE interfaces initially, adding default IPv6 autoconf support to e.g. tun interfaces. If the addrgenmode is set to 'random', either by default or manually, and no stable secret is available, then a random secret is used as input for the stable-privacy address generator. The secret can be read and modified like manually configured secrets, using the proc interface. Modifying the secret will change the addrgen mode to 'stable-privacy' to indicate that it operates on a known secret. Existing behaviour of the 'stable-privacy' mode is kept unchanged. If a known secret is available when the device is created, then the mode will default to 'stable-privacy' as before. The mode can be manually set to 'random' but it will behave exactly like 'stable-privacy' in this case. The secret will not change. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: 吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18ila: add NETFILTER dependencyArnd Bergmann
The recently added generic ILA translation facility fails to build when CONFIG_NETFILTER is disabled: net/ipv6/ila/ila_xlat.c:229:20: warning: 'struct nf_hook_state' declared inside parameter list net/ipv6/ila/ila_xlat.c:235:27: error: array type has incomplete element type 'struct nf_hook_ops' static struct nf_hook_ops ila_nf_hook_ops[] __read_mostly = { This adds an explicit Kconfig dependency to avoid that case. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 7f00feaf1076 ("ila: Add generic ILA translation facility") Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-18netfilter: meta: add support for setting skb->pkttypeFlorian Westphal
This allows to redirect bridged packets to local machine: ether type ip ether daddr set aa:53:08:12:34:56 meta pkttype set unicast Without 'set unicast', ip stack discards PACKET_OTHERHOST skbs. It is also useful to add support for a '-m cluster like' nft rule (where switch floods packets to several nodes, and each cluster node node processes a subset of packets for load distribution). Mangling is restricted to HOST/OTHER/BROAD/MULTICAST, i.e. you cannot set skb->pkt_type to PACKET_KERNEL or change PACKET_LOOPBACK to PACKET_HOST. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-12-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/geneve.c Here we had an overlapping change, where in 'net' the extraneous stats bump was being removed whilst in 'net-next' the final argument to udp_tunnel6_xmit_skb() was being changed. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix uninitialized variable warnings in nfnetlink_queue, a lot of people reported this... From Arnd Bergmann. 2) Don't init mutex twice in i40e driver, from Jesse Brandeburg. 3) Fix spurious EBUSY in rhashtable, from Herbert Xu. 4) Missing DMA unmaps in mvpp2 driver, from Marcin Wojtas. 5) Fix race with work structure access in pppoe driver causing corruptions, from Guillaume Nault. 6) Fix OOPS due to sh_eth_rx() not checking whether netdev_alloc_skb() actually succeeded or not, from Sergei Shtylyov. 7) Don't lose flags when settifn IFA_F_OPTIMISTIC in ipv6 code, from Bjørn Mork. 8) VXLAN_HD_RCO defined incorrectly, fix from Jiri Benc. 9) Fix clock source used for cookies in SCTP, from Marcelo Ricardo Leitner. 10) aurora driver needs HAS_DMA dependency, from Geert Uytterhoeven. 11) ndo_fill_metadata_dst op of vxlan has to handle ipv6 tunneling properly as well, from Jiri Benc. 12) Handle request sockets properly in xfrm layer, from Eric Dumazet. 13) Double stats update in ipv6 geneve transmit path, fix from Pravin B Shelar. 14) sk->sk_policy[] needs RCU protection, and as a result xfrm_policy_destroy() needs to free policies using an RCU grace period, from Eric Dumazet. 15) SCTP needs to clone ipv6 tx options in order to avoid use after free, from Eric Dumazet. 16) Missing kbuild export if ila.h, from Stephen Hemminger. 17) Missing mdiobus_alloc() return value checking in mdio-mux.c, from Tobias Klauser. 18) Validate protocol value range in ->create() methods, from Hannes Frederic Sowa. 19) Fix early socket demux races that result in illegal dst reuse, from Eric Dumazet. 20) Validate socket address length in pptp code, from WANG Cong. 21) skb_reorder_vlan_header() uses incorrect offset and can corrupt packets, from Vlad Yasevich. 22) Fix memory leaks in nl80211 registry code, from Ola Olsson. 23) Timeout loop count handing fixes in mISDN, xgbe, qlge, sfc, and qlcnic. From Dan Carpenter. 24) msg.msg_iocb needs to be cleared in recvfrom() otherwise, for example, AF_ALG will interpret it as an async call. From Tadeusz Struk. 25) inetpeer_set_addr_v4 forgets to initialize the 'vif' field, from Eric Dumazet. 26) rhashtable enforces the minimum table size not early enough, breaking how we calculate the per-cpu lock allocations. From Herbert Xu. 27) Fix FCC port lockup in 82xx driver, from Martin Roth. 28) FOU sockets need to be freed using RCU, from Hannes Frederic Sowa. 29) Fix out-of-bounds access in __skb_complete_tx_timestamp() and sock_setsockopt() wrt. timestamp handling. From WANG Cong. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (117 commits) net: check both type and procotol for tcp sockets drivers: net: xgene: fix Tx flow control tcp: restore fastopen with no data in SYN packet af_unix: Revert 'lock_interruptible' in stream receive code fou: clean up socket with kfree_rcu 82xx: FCC: Fixing a bug causing to FCC port lock-up gianfar: Don't enable RX Filer if not supported net: fix warnings in 'make htmldocs' by moving macro definition out of field declaration rhashtable: Fix walker list corruption rhashtable: Enforce minimum size on initial hash table inet: tcp: fix inetpeer_set_addr_v4() ipv6: automatically enable stable privacy mode if stable_secret set net: fix uninitialized variable issue bluetooth: Validate socket address length in sco_sock_bind(). net_sched: make qdisc_tree_decrease_qlen() work for non mq ser_gigaset: remove unnecessary kfree() calls from release method ser_gigaset: fix deallocation of platform device structure ser_gigaset: turn nonsense checks into WARN_ON ser_gigaset: fix up NULL checks qlcnic: fix a timeout loop ...
2015-12-17team: Advertise tunneling offload featuresEran Ben Elisha
When the underlying device supports offloads encapulated traffic, we need to reflect that through the hw_enc_features field of the team net-device. This will cause the xmit path in the core networking stack to provide team with encapsulated GSO frames to offload into the HW etc. Using this over Mellanox ConnectX3-pro (mlx4 driver) card that supports VXLAN offloads we got 36.0 Gbits/sec using eight iperf streams. Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-17net: qmi_wwan: ignore bogus CDC Union descriptorsBjørn Mork
The CDC descriptors found on these vendor specific functions should not be considered authoritative. They seem to be ignored by drivers for other systems, and the quality is therefore low. One device (1e0e:9001) has been reported to have such a bogus union descriptor on the QMI function, making it fail probing even if the device id was dynamically added. The report was not complete enough to allow adding a device entry for this modem. But this should at least fix the dynamic id probing problem. Reported-by: Kanerva Topi <Topi.Kanerva@cinia.fi> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-17net/macb: Update device tree binding for resetting PHY using GPIOGregory CLEMENT
Instead of being at the MAC level the reset gpio preperty is moved at the PHY child node level. It is still managed by the MAC, but from the point of view of the binding it make more sense to be part of the PHY node. This commit also fixes a build errors if GPIOLIB is not selected. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-17Merge branch 'cxgb4-l2-table-enhancements'David S. Miller
Hariprasad Shenai says: ==================== Few l2 table related enhancements for cxgb4 This series adds a new API to allocate and update l2t entry, replaces arpq_head/arpq_tail with double skb double linked list. Use t4_mgmt_tx() to send control packets of l2t write request. Use symbolic constants while calculating vlan priority. This patch series has been created against net-next tree and includes patches on cxgb4 driver. We have included all the maintainers of respective drivers. Kindly review the change and let us know in case of any review comments. Thanks V2: Remove unnecessary MAS operation while calculating vlan prio in PATCH 1/4 ("cxgb4: Use symbolic constant for VLAN priority calculation") based on review comment by David Miller ==================== Signed-off-by: David S. Miller <davem@davemloft.net>