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2016-08-25tcp: md5: add LINUX_MIB_TCPMD5FAILURE counterEric Dumazet
Adds SNMP counter for drops caused by MD5 mismatches. The current syslog might help, but a counter is more precise and helps monitoring. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-24net: diag: allow socket bytecode filters to match socket marksLorenzo Colitti
This allows a privileged process to filter by socket mark when dumping sockets via INET_DIAG_BY_FAMILY. This is useful on systems that use mark-based routing such as Android. The ability to filter socket marks requires CAP_NET_ADMIN, which is consistent with other privileged operations allowed by the SOCK_DIAG interface such as the ability to destroy sockets and the ability to inspect BPF filters attached to packet sockets. Tested: https://android-review.googlesource.com/261350 Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-24net: dsa: rename switch operations structureVivien Didelot
Now that the dsa_switch_driver structure contains only function pointers as it is supposed to, rename it to the more appropriate dsa_switch_ops, uniformly to any other operations structure in the kernel. No functional changes here, basically just the result of something like: s/dsa_switch_driver *drv/dsa_switch_ops *ops/g However keep the {un,}register_switch_driver functions and their dsa_switch_drivers list as is, since they represent the -- likely to be deprecated soon -- legacy DSA registration framework. In the meantime, also fix the following checks from checkpatch.pl to make it happy with this patch: CHECK: Comparison to NULL could be written "!ops" #403: FILE: net/dsa/dsa.c:470: + if (ops == NULL) { CHECK: Comparison to NULL could be written "ds->ops->get_strings" #773: FILE: net/dsa/slave.c:697: + if (ds->ops->get_strings != NULL) CHECK: Comparison to NULL could be written "ds->ops->get_ethtool_stats" #824: FILE: net/dsa/slave.c:785: + if (ds->ops->get_ethtool_stats != NULL) CHECK: Comparison to NULL could be written "ds->ops->get_sset_count" #835: FILE: net/dsa/slave.c:798: + if (ds->ops->get_sset_count != NULL) total: 0 errors, 0 warnings, 4 checks, 784 lines checked Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-24Merge tag 'shared-for-4.9-2' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma Saeed Mahameed says: ==================== Mellanox mlx5 core driver updates 2016-08-24 This series contains some low level and API updates for mlx5 core driver interface and mlx5_ifc.h, plus mlx5 LAG core driver support, to be shared as base code for net-next and rdma mlx5 4.9 submissions. From Alex and Artemy, Update mlx5_ifc for modify RQ and XRC bits. From Noa, Expose mlx5 link modes so they can be used in RDMA tree for rdma tools. From Aviv, LAG support needed for RDMA. - Add needed hardware structures, layouts and interface - mlx5 core driver LAG implementation - Introduce mlx5 core driver LAG API for mlx5_ib From Maor, add two low level patches for mlx5 hardware sniffer QP infrastructure bits and capabilities, plus added the namespace for sniffer steering tables. Needed for RDMA subtree. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net: remove clear_sk() methodEric Dumazet
We no longer use this handler, we can delete it. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23udp: get rid of sk_prot_clear_portaddr_nulls()Eric Dumazet
Since we no longer use SLAB_DESTROY_BY_RCU for UDP, we do not need sk_prot_clear_portaddr_nulls() helper. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net: diag: support SOCK_DESTROY for UDP socketsDavid Ahern
This implements SOCK_DESTROY for UDP sockets similar to what was done for TCP with commit c1e64e298b8ca ("net: diag: Support destroying TCP sockets.") A process with a UDP socket targeted for destroy is awakened and recvmsg fails with ECONNABORTED. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23Merge tag 'rxrpc-rewrite-20160823-1' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs David Howells says: ==================== rxrpc: Cleanups Here are some cleanups for the AF_RXRPC rewrite: (1) Remove some unused bits. (2) Call releasing on socket closure is now done in the order in which calls progress through the phases so that we don't miss a call actively moving list. (3) The rxrpc_call struct's channel number field is redundant and replaced with accesses to the masked off cid field instead. (4) Use a tracepoint for socket buffer accounting rather than printks. Unfortunately, since this would require currently non-existend arch-specific help to divine the current instruction location, the accounting functions are moved out of line so that __builtin_return_address() can be used. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net-tcp: retire TFO_SERVER_WO_SOCKOPT2 configYuchung Cheng
TFO_SERVER_WO_SOCKOPT2 was intended for debugging purposes during Fast Open development. Remove this config option and also update/clean-up the documentation of the Fast Open sysctl. Reported-by: Piotr Jurkiewicz <piotr.jerzy.jurkiewicz@gmail.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23strparser: Queue work when being unpausedTom Herbert
When the upper layer unpauses a stream parser connection we need to queue rx_work to make sure no events are missed. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: report vmbus name in ethtoolStephen Hemminger
Make netvsc on vmbus behave more like PCI. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: make inline functions staticStephen Hemminger
Several new functions were introduced into hyperv.h but only used in one file. Move them and let compiler decide on inline. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23Merge tag 'shared-for-4.9-1' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma Saeed Mahameed says: ==================== Mellanox mlx5 core driver updates 2016-08-20 This series contains several low level and API updates for mlx5 core commands interface and mlx5_ifc.h to be shared as base code for net-next and rdma mlx5 4.9 submissions. From Saeed, ten patches that refactors old layouts of firmware commands which were manually generated before we introduced the mlx5_ifc, now all of the firmware commands inbox/outbox layouts moved to use mlx5_ifc and we remove the old manually generated structures. Plus to those ten patches, we add two patches that unifies mlx5 commands execution interface and improve the driver log messages in that area. From Hadar and Ilya, added the needed hardware bits and infrastructure for minimum inline headers setting and encap/decap commands and capabilities, needed for E-Switch offloads. This series applies on top latest net-next and rdma/master, and smoothly merges with the latest "Mellanox 100G mlx5 fixes 2016-08-16" series already applied into net branch. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23rxrpc: Use a tracepoint for skb accounting debuggingDavid Howells
Use a tracepoint to log various skb accounting points to help in debugging refcounting errors. Signed-off-by: David Howells <dhowells@redhat.com>
2016-08-22qed: Fix address macrosYuval Mintz
Last FW submission reverted various macros into an older form, where they generate compilation warnings on some architectures. Bring back the newer macros instead. Fixes: 05fafbfb3d77 ("qed: utilize FW 8.10.10.0") Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22net: dsa: Allow the DSA driver to indicate the tag protocolAndrew Lunn
DSA drivers may drive different families of switches which need different tag protocol. Rather than hard code the tag protocol in the driver structure, have a callback for the DSA core to call. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22qed*: Add support for VFs over legacy PFsYuval Mintz
Modern VFs can't run on old non-compatible as the fastpath HSI is slightly changed - but as the HSI is actually very close [basically, a single bit whose meaning flipped] this can be supported with small modifications. The major differences would be in: - Recognizing that VF is running on top of a legacy PF. - Returning some slowpath configurations that are no longer needed on top of modern PFs, but would be required when working over the legacy ones. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22net_sched: properly handle failure case of tcf_exts_init()WANG Cong
After commit 22dc13c837c3 ("net_sched: convert tcf_exts from list to pointer array") we do dynamic allocation in tcf_exts_init(), therefore we need to handle the ENOMEM case properly. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19qed: utilize FW 8.10.10.0Yuval Mintz
This new firmware for the qed* adpaters fixes several issues: - Better blocking of malicious VFs. - After FLR, Tx-switching [internal routing] of packets might be incorrect. - Deletion of unicast MAC filters would sometime have side-effect of corrupting the MAC filters configred for a device. It also contains fixes for future qed* drivers that *hopefully* would be sent for review in the near future. In addition, it would allow driver some new functionality, including: - Allowing PF/VF driver compaitibility with old drivers [running pre-8.10.5.0 firmware]. - Better debug facilities. This would also bump the qed* driver versions to 8.10.9.20. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19net: dsa: Export suspend/resume functionsFlorian Fainelli
In preparation for allowing switch drivers to implement system-wide suspend/resume functions, export dsa_switch_suspend and dsa_switch_resume() such that these are callable from the appropriate driver specific suspend/resume functions. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-19rhashtable: Remove GFP flag from rhashtable_walk_initHerbert Xu
The commit 8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697 ("rhashtable: accept GFP flags in rhashtable_walk_init") added a GFP flag argument to rhashtable_walk_init because some users wish to use the walker in an unsleepable context. In fact we don't need to allocate memory in rhashtable_walk_init at all. The walker is always paired with an iterator so we could just stash ourselves there. This patch does that by introducing a new enter function to replace the existing init function. This way we don't have to churn all the existing users again. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18bpf: get rid of cgroup helper related ifdefsDaniel Borkmann
As recently discussed during the task_under_cgroup_hierarchy() addition, we should get rid of the ifdefs surrounding the bpf_skb_under_cgroup() helper. If related functionality is not built-in, the helper cannot be used anyway, which is also in line with what we do for all other helpers. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18bpf: add bpf_skb_change_tail helperDaniel Borkmann
This work adds a bpf_skb_change_tail() helper for tc BPF programs. The basic idea is to expand or shrink the skb in a controlled manner. The eBPF program can then rewrite the rest via helpers like bpf_skb_store_bytes(), bpf_lX_csum_replace() and others rather than passing a raw buffer for writing here. bpf_skb_change_tail() is really a slow path helper and intended for replies with f.e. ICMP control messages. Concept is similar to other helpers like bpf_skb_change_proto() helper to keep the helper without protocol specifics and let the BPF program mangle the remaining parts. A flags field has been added and is reserved for now should we extend the helper in future. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18tipc: add peer removal functionalityRichard Alpe
Add TIPC_NL_PEER_REMOVE netlink command. This command can remove an offline peer node from the internal data structures. This will be supported by the tipc user space tool in iproute2. Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18net: bgmac: support Ethernet core on BCM53573 SoCsRafał Miłecki
BCM53573 is a new series of Broadcom's SoCs. It's based on ARM and can be found in two packages (versions): BCM53573 and BCM47189. It shares some code with the Northstar family, but also requires some new quirks. First of all there can be up to 2 Ethernet cores on this SoC. If that is the case, they are connected to two different switch ports allowing some more complex/optimized setups. It seems the second unit doesn't come fully configured and requires some IRQ quirk. Other than that only the first core is connected to the PHY. For the second one we have to register fixed PHY (similarly to the Northstar), otherwise generic PHY driver would get some invalid info. This has been successfully tested on Tenda AC9 (BCM47189B0). Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18net: bridge: export vlan flags with the statsNikolay Aleksandrov
Use one of the vlan xstats padding fields to export the vlan flags. This is needed in order to be able to distinguish between master (bridge) and port vlan entries in user-space when dumping the bridge vlan stats. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18net_sched: act_vlan: Add priority optionHadar Hen Zion
The current vlan push action supports only vid and protocol options. Add priority option. Example script that adds vlan push action with vid and priority: tc filter add dev veth0 protocol ip parent ffff: \ flower \ indev veth0 \ action vlan push id 100 priority 5 Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18net_sched: flower: Add vlan supportHadar Hen Zion
Enhance flower to support 802.1Q vlan protocol classification. Currently, the supported fields are vlan_id and vlan_priority. Example: # add a flower filter with vlan id and priority classification tc filter add dev ens4f0 protocol 802.1Q parent ffff: \ flower \ indev ens4f0 \ vlan_ethtype ipv4 \ vlan_id 100 \ vlan_prio 3 \ action vlan pop Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18flow_dissector: Get vlan priority in addition to vlan idHadar Hen Zion
Add vlan priority check to the flow dissector by adding new flow dissector struct, flow_dissector_key_vlan which includes vlan tag fields. vlan_id and flow_label fields were under the same struct (flow_dissector_key_tags). It was a convenient setting since struct flow_dissector_key_tags is used by struct flow_keys and by setting vlan_id and flow_label under the same struct, we get precisely 24 or 48 bytes in flow_keys from flow_dissector_key_basic. Now, when adding vlan priority support, the code will be cleaner if flow_label and vlan tag won't be under the same struct anymore. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18qed*: Fix pause settingYuval Mintz
When moving into using ethtool's link_ksetting, qed started supplying its own bitmask of speed/capabilities, but qede is still checking for the SUPPORTED value to determine whether it supports pause. Fixes: 054c67d1c82a ("qed*: Add support for ethtool link_ksettings callbacks") Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-18net/mlx5: Add sniffer namespacesMaor Gottlieb
Add sniffer TX and RX namespaces to receive ingoing and outgoing traffic. Each outgoing/incoming packet is duplicated and steered to the sniffer TX/RX namespace in addition to the regular flow. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Introduce sniffer steering hardware capabilitiesMaor Gottlieb
Define needed hardware capabilities for sniffer RX and TX flow tables. Add the following capabilities: 1. Sniffer RX flow table capabilities. 2. Sniffer TX flow table capabilities. 3. If same TIR can be used by multiple flow tables of different types. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Vport LAG creation supportAviv Heller
Add interfaces for issuing CREATE_VPORT_LAG and DESTROY_VPORT_LAG commands. Used for receiving PF1's eth traffic on PF0's root ft. Signed-off-by: Aviv Heller <avivh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Add LAG flow steering namespaceAviv Heller
This namespace is used for LAG demux flowtable. The idea is to position the LAG demux ft between bypass and kernel flowtables, allowing raw-eth traffic from both ports to be received by the PF0 IB device. Signed-off-by: Aviv Heller <avivh@mellanox.com> Reviewed-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: LAG demux flow table supportAviv Heller
Add interfaces to allow the creation and destruction of a LAG demux flow table. It is a special flow table used during LAG for redirecting non user-mode packets from PF0 to PF1 root ft, if a packet was received on phys port two. Signed-off-by: Aviv Heller <avivh@mellanox.com> Reviewed-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Get RoCE netdevAviv Heller
Used by IB driver for determining the IB bond device's netdev, when LAG is active. Returns PF0's netdev if mode is not active-backup, or the PF netdev of the active slave when mode is active-backup. Signed-off-by: Aviv Heller <avivh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Implement RoCE LAG featureAviv Heller
Available on dual port cards only, this feature keeps track, using netdev LAG events, of the bonding and link status of each port's PF netdev. When both of the card's PF netdevs are enslaved to the same bond/team master, and only them, LAG state is active. During LAG, only one IB device is present for both ports. In addition to the above, this commit includes FW commands used for managing the LAG, new facilities for adding and removing a single device by interface, and port remap functionality according to bond events. Please note that this feature is currently used only for mimicking Ethernet bonding for RoCE - netdevs functionality is not altered, and their bonding continues to be managed solely by bond/team driver. Signed-off-by: Aviv Heller <avivh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Add HW interfaces used by LAGAviv Heller
Exposed LAG commands enum and layouts: - CREATE_LAG HW enters LAG mode: RoCE traffic from port two is received on PF0 core dev. Allows to set tx_affinity (tx port) for QPs and TISes. Allows to port remap QPs and TISes, overriding their tx_affinity behavior. - MODIFY_LAG Remap QPs and TISes to another port. - QUERY_LAG Query whether LAG mode is active. - DESTROY_LAG HW exits LAG mode, returning to non-LAG behavior. - CREATE_VPORT_LAG Merge Ethernet flow steering, such that traffic received on port two jumps to PF0 root flow table. Available only in LAG mode. - DESTROY_VPORT_LAG Ethernet flow steering returns to non-LAG behavior. Caps added: - lag_master Driver is in charge of managing the LAG. This is currently the only option. - num_lag_ports LAG is supported only if this field's value is 2. Other fields: - QP/TIS tx port affinity During LAG, this field controls on which port a QP or TIS resides. - TIS strict tx affinity When this field is set, the TIS will not be subject to port remap by CREATE_LAG/MODIFY_LAG. - LAG demux flow table Flow table used for redirecting non user-space traffic back to PF1 root flow table, if the packet was received on port two. Signed-off-by: Aviv Heller <avivh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Separate query_port_proto_oper for IB and ENNoa Osherovich
Replaced mlx5_query_port_proto_oper with separate functions per link type. The functions should take different arguments so no point in trying to unite them. Signed-off-by: Noa Osherovich <noaos@mellanox.com> Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Expose mlx5e_link_modeNoa Osherovich
The mlx5e_link_mode enumeration will also be used in mlx5_ib for RoCE. This patch moves the enumeration to the mlx5 driver port header file. Signed-off-by: Noa Osherovich <noaos@mellanox.com> Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Update struct mlx5_ifc_xrqc_bitsArtemy Kovalyov
Update struct mlx5_ifc_xrqc_bits according to last specification Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18net/mlx5: Modify RQ bitmask from mlx5 ifcAlex Vesker
Use mlx5 ifc MODIFY_BITMASK_VSD in mlx5e_modify_rq_vsd and expose counter set capability bit in hca caps structure. Signed-off-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Minor overlapping changes for both merge conflicts. Resolution work done by Stephen Rothwell was used as a reference. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Buffers powersave frame test is reversed in cfg80211, fix from Felix Fietkau. 2) Remove bogus WARN_ON in openvswitch, from Jarno Rajahalme. 3) Fix some tg3 ethtool logic bugs, and one that would cause no interrupts to be generated when rx-coalescing is set to 0. From Satish Baddipadige and Siva Reddy Kallam. 4) QLCNIC mailbox corruption and napi budget handling fix from Manish Chopra. 5) Fix fib_trie logic when walking the trie during /proc/net/route output than can access a stale node pointer. From David Forster. 6) Several sctp_diag fixes from Phil Sutter. 7) PAUSE frame handling fixes in mlxsw driver from Ido Schimmel. 8) Checksum fixup fixes in bpf from Daniel Borkmann. 9) Memork leaks in nfnetlink, from Liping Zhang. 10) Use after free in rxrpc, from David Howells. 11) Use after free in new skb_array code of macvtap driver, from Jason Wang. 12) Calipso resource leak, from Colin Ian King. 13) mediatek bug fixes (missing stats sync init, etc.) from Sean Wang. 14) Fix bpf non-linear packet write helpers, from Daniel Borkmann. 15) Fix lockdep splats in macsec, from Sabrina Dubroca. 16) hv_netvsc bug fixes from Vitaly Kuznetsov, mostly to do with VF handling. 17) Various tc-action bug fixes, from CONG Wang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits) net_sched: allow flushing tc police actions net_sched: unify the init logic for act_police net_sched: convert tcf_exts from list to pointer array net_sched: move tc offload macros to pkt_cls.h net_sched: fix a typo in tc_for_each_action() net_sched: remove an unnecessary list_del() net_sched: remove the leftover cleanup_a() mlxsw: spectrum: Allow packets to be trapped from any PG mlxsw: spectrum: Unmap 802.1Q FID before destroying it mlxsw: spectrum: Add missing rollbacks in error path mlxsw: reg: Fix missing op field fill-up mlxsw: spectrum: Trap loop-backed packets mlxsw: spectrum: Add missing packet traps mlxsw: spectrum: Mark port as active before registering it mlxsw: spectrum: Create PVID vPort before registering netdevice mlxsw: spectrum: Remove redundant errors from the code mlxsw: spectrum: Don't return upon error in removal path i40e: check for and deal with non-contiguous TCs ixgbe: Re-enable ability to toggle VLAN filtering ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths ...
2016-08-17kcm: Use stream parserTom Herbert
Adapt KCM to use the stream parser. This mostly involves removing the RX handling and setting up the strparser using the interface. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-17strparser: Stream parser for messagesTom Herbert
This patch introduces a utility for parsing application layer protocol messages in a TCP stream. This is a generalization of the mechanism implemented of Kernel Connection Multiplexor. The API includes a context structure, a set of callbacks, utility functions, and a data ready function. A stream parser instance is defined by a strparse structure that is bound to a TCP socket. The function to initialize the structure is: int strp_init(struct strparser *strp, struct sock *csk, struct strp_callbacks *cb); csk is the TCP socket being bound to and cb are the parser callbacks. The upper layer calls strp_tcp_data_ready when data is ready on the lower socket for strparser to process. This should be called from a data_ready callback that is set on the socket: void strp_tcp_data_ready(struct strparser *strp); A parser is bound to a TCP socket by setting data_ready function to strp_tcp_data_ready so that all receive indications on the socket go through the parser. This is assumes that sk_user_data is set to the strparser structure. There are four callbacks. - parse_msg is called to parse the message (returns length or error). - rcv_msg is called when a complete message has been received - read_sock_done is called when data_ready function exits - abort_parser is called to abort the parser The input to parse_msg is an skbuff which contains next message under construction. The backend processing of parse_msg will parse the application layer protocol headers to determine the length of the message in the stream. The possible return values are: >0 : indicates length of successfully parsed message 0 : indicates more data must be received to parse the message -ESTRPIPE : current message should not be processed by the kernel, return control of the socket to userspace which can proceed to read the messages itself other < 0 : Error is parsing, give control back to userspace assuming that synchronzation is lost and the stream is unrecoverable (application expected to close TCP socket) In the case of error return (< 0) strparse will stop the parser and report and error to userspace. The application must deal with the error. To handle the error the strparser is unbound from the TCP socket. If the error indicates that the stream TCP socket is at recoverable point (ESTRPIPE) then the application can read the TCP socket to process the stream. Once the application has dealt with the exceptions in the stream, it may again bind the socket to a strparser to continue data operations. Note that ENODATA may be returned to the application. In this case parse_msg returned -ESTRPIPE, however strparser was unable to maintain synchronization of the stream (i.e. some of the message in question was already read by the parser). strp_pause and strp_unpause are used to provide flow control. For instance, if rcv_msg is called but the upper layer can't immediately consume the message it can hold the message and pause strparser. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-17net_sched: convert tcf_exts from list to pointer arrayWANG Cong
As pointed out by Jamal, an action could be shared by multiple filters, so we can't use list to chain them any more after we get rid of the original tc_action. Instead, we could just save pointers to these actions in tcf_exts, since they are refcount'ed, so convert the list to an array of pointers. The "ugly" part is the action API still accepts list as a parameter, I just introduce a helper function to convert the array of pointers to a list, instead of relying on the C99 feature to iterate the array. Fixes: a85a970af265 ("net_sched: move tc_action into tcf_common") Reported-by: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-17net_sched: move tc offload macros to pkt_cls.hWANG Cong
struct tcf_exts belongs to filters, should not be visible to plain tc actions. Cc: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-17net_sched: fix a typo in tc_for_each_action()WANG Cong
It is harmless because all users pass 'a' to this macro. Fixes: 00175aec941e ("net/sched: Macro instead of CONFIG_NET_CLS_ACT ifdef") Cc: Amir Vadai <amir@vadai.me> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-17Merge tag 'batadv-next-for-davem-20160816' of ↵David S. Miller
git://git.open-mesh.org/linux-merge Simon Wunderlich says: ==================== pull request for net-next: batman-adv 2016-08-16 This feature patchset is all about adding netlink support, which should supersede our debugfs configuration interface in the long run. It is especially necessary when batman-adv should be used in different namespaces, since debugfs can not differentiate between those. More specifically, the following changes are included: - Two fixes for namespace handling by Andrew Lunn, checking also the namespaces for parent interfaces, and supress debugfs entries for non-default netns - Implement various netlink commands for the new interface, by Matthias Schiffer, Andrew Lunn, Sven Eckelmann and Simon Wunderlich (13 patches): * routing algorithm list * hardif list * translation tables (local and global) * TTVN for the translation tables * originator and neighbor tables for B.A.T.M.A.N. IV and B.A.T.M.A.N. V * gateway dump functionality for B.A.T.M.A.N. IV and B.A.T.M.A.N. V * Bridge Loop Avoidance claims, and corresponding BLA group * Bridge Loop Avoidance backbone tables - Finally, mark batman-adv as netns compatible, by Andrew Lunn (1 patch) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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