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2018-11-08geneve: Allow configuration of DF behaviourStefano Brivio2-8/+56
draft-ietf-nvo3-geneve-08 says: It is strongly RECOMMENDED that Path MTU Discovery ([RFC1191], [RFC1981]) be used by setting the DF bit in the IP header when Geneve packets are transmitted over IPv4 (this is the default with IPv6). Now that ICMP error handling is working for GENEVE, we can comply with this recommendation. Make this configurable, though, to avoid breaking existing setups. By default, DF won't be set. It can be set or inherited from inner IPv4 packets. If it's configured to be inherited and we are encapsulating IPv6, it will be set. This only applies to non-lwt tunnels: if an external control plane is used, tunnel key will still control the DF flag. v2: - DF behaviour configuration only applies for non-lwt tunnels, apply DF setting only if (!geneve->collect_md) in geneve_xmit_skb() (Stephen Hemminger) Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08geneve: ICMP error lookup handlerStefano Brivio1-0/+52
Export an encap_err_lookup() operation to match an ICMP error against a valid VNI. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08selftests: pmtu: Introduce tests for IPv4/IPv6 over VXLAN over IPv4/IPv6Stefano Brivio1-18/+125
Use a router between endpoints, implemented via namespaces, set a low MTU between router and destination endpoint, exceed it and check PMTU value in route exceptions. v2: - Change all occurrences of VxLAN to VXLAN (Jiri Benc) - Introduce IPv4 tests right away, if iproute2 doesn't support the 'df' link option they will be skipped (David Ahern) Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08vxlan: Allow configuration of DF behaviourStefano Brivio3-1/+38
Allow users to set the IPv4 DF bit in outgoing packets, or to inherit its value from the IPv4 inner header. If the encapsulated protocol is IPv6 and DF is configured to be inherited, always set it. For IPv4, inheriting DF from the inner header was probably intended from the very beginning judging by the comment to vxlan_xmit(), but it wasn't actually implemented -- also because it would have done more harm than good, without handling for ICMP Fragmentation Needed messages. According to RFC 7348, "Path MTU discovery MAY be used". An expired RFC draft, draft-saum-nvo3-pmtud-over-vxlan-05, whose purpose was to describe PMTUD implementation, says that "is a MUST that Vxlan gateways [...] SHOULD set the DF-bit [...]", whatever that means. Given this background, the only sane option is probably to let the user decide, and keep the current behaviour as default. This only applies to non-lwt tunnels: if an external control plane is used, tunnel key will still control the DF flag. v2: - DF behaviour configuration only applies for non-lwt tunnels, move DF setting to if (!info) block in vxlan_xmit_one() (Stephen Hemminger) Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08vxlan: ICMP error lookup handlerStefano Brivio1-0/+29
Export an encap_err_lookup() operation to match an ICMP error against a valid VNI. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08udp: Handle ICMP errors for tunnels with same destination port on both endpointsStefano Brivio5-20/+153
For both IPv4 and IPv6, if we can't match errors to a socket, try tunnels before ignoring them. Look up a socket with the original source and destination ports as found in the UDP packet inside the ICMP payload, this will work for tunnels that force the same destination port for both endpoints, i.e. VXLAN and GENEVE. Actually, lwtunnels could break this assumption if they are configured by an external control plane to have different destination ports on the endpoints: in this case, we won't be able to trace ICMP messages back to them. For IPv6 redirect messages, call ip6_redirect() directly with the output interface argument set to the interface we received the packet from (as it's the very interface we should build the exception on), otherwise the new nexthop will be rejected. There's no such need for IPv4. Tunnels can now export an encap_err_lookup() operation that indicates a match. Pass the packet to the lookup function, and if the tunnel driver reports a matching association, continue with regular ICMP error handling. v2: - Added newline between network and transport header sets in __udp{4,6}_lib_err_encap() (David Miller) - Removed redundant skb_reset_network_header(skb); in __udp4_lib_err_encap() - Removed redundant reassignment of iph in __udp4_lib_err_encap() (Sabrina Dubroca) - Edited comment to __udp{4,6}_lib_err_encap() to reflect the fact this won't work with lwtunnels configured to use asymmetric ports. By the way, it's VXLAN, not VxLAN (Jiri Benc) Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: hns3: fix spelling mistake, "assertting" -> "asserting"Colin Ian King1-1/+1
Trivial fix to spelling mistake in dev_err error message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08cxgb4: Add new T6 PCI device ids 0x608aGanesh Goudar1-0/+1
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net/ipv6: compute anycast address hash only if dev is nullLi RongQing1-2/+4
avoid to compute the hash value if dev is not null, since hash value is not used Signed-off-by: Li RongQing <lirongqing@baidu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: bcmgenet: return correct value 'ret' from bcmgenet_power_downYueHaibing1-1/+1
Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/ethernet/broadcom/genet/bcmgenet.c: In function 'bcmgenet_power_down': drivers/net/ethernet/broadcom/genet/bcmgenet.c:1136:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] bcmgenet_power_down should return 'ret' instead of 0. Fixes: ca8cf341903f ("net: bcmgenet: propagate errors from bcmgenet_power_down") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: sched: prio: delay destroying child qdiscs on changeJakub Kicinski1-1/+3
Move destroying of the old child qdiscs outside of the sch_tree_lock() section. This should improve the software qdisc replace but is even more important for offloads. Calling offloads under a spin lock is best avoided, and child's destroy would be called under sch_tree_lock(). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: sched: red: delay destroying child qdisc on replaceJakub Kicinski1-2/+6
Move destroying of the old child qdisc outside of the sch_tree_lock() section. This should improve the software qdisc replace but is even more important for offloads. Firstly calling offloads under a spin lock is best avoided. Secondly the destroy event of existing child would have been sent to the offload device before the replace, causing confusion. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: sched: refactor grafting Qdiscs with a parentJakub Kicinski1-14/+14
The code for grafting Qdiscs when there is a parent has two needless indentation levels, and breaks the "keep the success path unindented" guideline. Refactor. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: sched: add an offload graft helperJakub Kicinski3-24/+44
Qdisc graft operation of offload-capable qdiscs performs a few extra steps which are identical among all the qdiscs. Add a helper to share this code. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: sched: set TCQ_F_OFFLOADED flag for MQJakub Kicinski1-6/+3
PRIO and RED mark the qdisc with TCQ_F_OFFLOADED upon successful offload, make MQ do the same. The consistency will help with consistent graft callback behaviour. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: sched: red: remove unnecessary red_dump_offload_stats parameterJakub Kicinski1-2/+2
Offload dump helper does not use opt parameter, remove it. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: sched: add an offload dump helperJakub Kicinski4-31/+35
Qdisc dump operation of offload-capable qdiscs performs a few extra steps which are identical among all the qdiscs. Add a helper to share this code. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: phy: use phy_check_link_status in more places in the state machineHeiner Kallweit1-48/+5
Use phy_check_link_status in more places in the state machine. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: phy: remove state PHY_ANHeiner Kallweit2-45/+1
After the recent changes in the state machine state PHY_AN isn't used any longer and can be removed. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: phy: add phy_check_link_statusHeiner Kallweit1-30/+40
In few places in the state machine the state is set to PHY_RUNNING or PHY_NOLINK after doing a phy_read_status(). So factor this out to phy_check_link_status(). First use it in phy_start_aneg(): By setting the state to PHY_RUNNING or PHY_NOLINK directly we can remove the code to handle the case that we're using interrupts and aneg was finished already. Definition of phy_link_up and phy_link_down needs to be moved because they are called in the new function. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: phy: remove useless check in state machine case PHY_RESUMINGHeiner Kallweit1-12/+1
If aneg isn't finished yet then the PHY reports the link as down. There's no benefit in setting the state to PHY_AN because the next state machine run would set the status to PHY_NOLINK anyway (except in the meantime aneg has been finished and link is up). Therefore we can set the state to PHY_RUNNING or PHY_NOLINK directly. In addition change the do_carrier parameter in phy_link_down() to true. If carrier was marked as up before (what should never be the case because PHY was in state PHY_HALTED before) then we should mark it as down now. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08net: phy: remove useless check in state machine case PHY_NOLINKHeiner Kallweit1-11/+0
If aneg is enabled and the PHY reports the link as up then definitely aneg finished successfully. Therefore this check is useless and can be removed. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07nfp: flower: include geneve as supported offload tunnel typeJohn Hurley1-0/+2
Offload of geneve decap rules is supported in NFP. Include geneve in the check for supported types. Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07nfp: flower: use geneve and vxlan helpersJohn Hurley1-5/+3
Make use of the recently added VXLAN and geneve helper functions to determine the type of the netdev from its rtnl_link_ops. Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net: add netif_is_geneve()John Hurley1-0/+6
Add a helper function to determine if the type of a netdev is geneve based on its rtnl_link_ops. This allows drivers that may wish to offload tunnels to check the underlying type of the device. A recent patch added a similar helper to vxlan.h Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07sfc: add missing NVRAM partition types for EF10Edward Cree1-0/+7
Expose the MUM/SUC Firmware, UEFI Expansion ROM and MC Status partitions of the NIC's NVRAM as MTDs if found on the NIC. The first two are needed in order to properly update them when performing firmware updates; the MC Status partition is used to determine whether a signed firmware image was accepted or rejected by a Secure NIC. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net/vlan: remove unused #define HAVE_VLAN_GET_TAGMichał Mirosław1-2/+0
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net/vlan: include the shift in skb_vlan_tag_get_prio()Michał Mirosław2-3/+2
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net/vlan: introduce __vlan_hwaccel_copy_tag() helperMichał Mirosław1-0/+13
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net/vlan: introduce __vlan_hwaccel_clear_tag() helperMichał Mirosław1-1/+12
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07inet: minor optimization for backlog setting in listen(2)Yafang Shao3-3/+2
Set the backlog earlier in inet_dccp_listen() and inet_listen(), then we can avoid the redundant setting. Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net: vlan: add support for tunnel offloadDavide Caratti3-0/+15
GSO tunneled packets are always segmented in software before they are transmitted by a VLAN, even when the lower device can offload tunnel encapsulation and VLAN together (i.e., some bits in NETIF_F_GSO_ENCAP_ALL mask are set in the lower device 'vlan_features'). If we let VLANs have the same tunnel offload capabilities as their lower device, throughput can improve significantly when CPU is limited on the transmitter side. - set NETIF_F_GSO_ENCAP_ALL bits in the VLAN 'hw_features', to ensure that 'features' will have those bits zeroed only when the lower device has no hardware support for tunnel encapsulation. - for the same reason, copy GSO-related bits of 'hw_enc_features' from lower device to VLAN, and ensure to update that value when the lower device changes its features. - set NETIF_F_HW_CSUM bit in the VLAN 'hw_enc_features' if 'real_dev' is able to compute checksums at least for a kind of packets, like done with commit 8403debeead8 ("vlan: Keep NETIF_F_HW_CSUM similar to other software devices"). This avoids software segmentation due to mismatching checksum capabilities between VLAN's 'features' and 'hw_enc_features'. Reported-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07tun: compute the RFS hash only if needed.Paolo Abeni1-1/+2
The tun XDP sendmsg code path, unconditionally computes the symmetric hash of each packet for RFS's sake, even when we could skip it. e.g. when the device has a single queue. This change adds the check already in-place for the skb sendmsg path to avoid unneeded hashing. The above gives small, but measurable, performance gain for VM xmit path when zerocopy is not enabled. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net/wan/fsl_ucc_hdlc: add BQL supportMathias Thore1-0/+8
Add byte queue limits support in the fsl_ucc_hdlc driver. Signed-off-by: Mathias Thore <mathias.thore@infinera.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net: phy: realtek: load driver for all PHYs with a Realtek OUIHeiner Kallweit1-9/+2
Instead of listing every single PHYID, load the driver for every PHYID with a Realtek OUI, independent of model number and revision. This patch also improves two further aspects: - constify realtek_tbl[] - the mask should have been 0xffffffff instead of 0x001fffff so far, by masking out some bits a PHY from another vendor could have been matched Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net: phy: make phy_trigger_machine staticHeiner Kallweit2-22/+12
phy_trigger_machine() is used in phy.c only, so we can make it static. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net: dsa: bcm_sf2: fix semicolon.cocci warningskbuild test robot1-2/+2
drivers/net/dsa/bcm_sf2_cfp.c:1168:2-3: Unneeded semicolon drivers/net/dsa/bcm_sf2_cfp.c:532:2-3: Unneeded semicolon Remove unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci Fixes: ae7a5aff783c ("net: dsa: bcm_sf2: Keep copy of inserted rules") CC: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net: phy: bcm7xxx: Add entry for BCM7255Justin Chen2-0/+3
Add support for BCM7255 EPHY. Signed-off-by: Justin Chen <justinpopo6@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07selftests: add functionals test for UDP GROPaolo Abeni6-23/+282
Extends the existing udp programs to allow checking for proper GRO aggregation/GSO size, and run the tests via a shell script, using a veth pair with XDP program attached to trigger the GRO code path. rfc v3 -> v1: - use ip route to attach the xdp helper to the veth rfc v2 -> rfc v3: - add missing test program options documentation - fix sporatic test failures (receiver faster than sender) Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07selftests: add some benchmark for UDP GROPaolo Abeni2-0/+94
Run on top of veth pair, using a dummy XDP program to enable the GRO. rfc v3 -> v1: - use ip route to attach the xdp helper to the veth Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07selftests: add dummy xdp test helperPaolo Abeni2-1/+15
This trivial XDP program does nothing, but will be used by the next patch to test the GRO path in a net namespace, leveraging the veth XDP implementation. It's added here, despite its 'net' usage, to avoid the duplication of the llc-related makefile boilerplate. rfc v3 -> v1: - move the helper implementation into the bpf directory, don't touch udpgso_bench_rx rfc v2 -> rfc v3: - move 'x' option handling here Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07selftests: add GRO support to udp bench rx programPaolo Abeni1-7/+30
And fix a couple of buglets (port option processing, clean termination on SIGINT). This is preparatory work for GRO tests. rfc v2 -> rfc v3: - use ETH_MAX_MTU Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07udp: cope with UDP GRO packet misdirectionPaolo Abeni4-10/+88
In some scenarios, the GRO engine can assemble an UDP GRO packet that ultimately lands on a non GRO-enabled socket. This patch tries to address the issue explicitly checking for the UDP socket features before enqueuing the packet, and eventually segmenting the unexpected GRO packet, as needed. We must also cope with re-insertion requests: after segmentation the UDP code calls the helper introduced by the previous patches, as needed. Segmentation is performed by a common helper, which takes care of updating socket and protocol stats is case of failure. rfc v3 -> v1 - fix compile issues with rxrpc - when gso_segment returns NULL, treat is as an error - added 'ipv4' argument to udp_rcv_segment() rfc v2 -> rfc v3 - moved udp_rcv_segment() into net/udp.h, account errors to socket and ns, always return NULL or segs list Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07ipv6: factor out protocol delivery helperPaolo Abeni2-12/+18
So that we can re-use it at the UDP level in the next patch rfc v3 -> v1: - add the helper declaration into the ipv6 header Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07ip: factor out protocol delivery helperPaolo Abeni2-37/+37
So that we can re-use it at the UDP level in a later patch rfc v3 -> v1 - add the helper declaration into the ip header Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07udp: add support for UDP_GRO cmsgPaolo Abeni3-0/+18
When UDP GRO is enabled, the UDP_GRO cmsg will carry the ingress datagram size. User-space can use such info to compute the original packets layout. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07udp: implement GRO for plain UDP sockets.Paolo Abeni5-28/+99
This is the RX counterpart of commit bec1f6f69736 ("udp: generate gso with UDP_SEGMENT"). When UDP_GRO is enabled, such socket is also eligible for GRO in the rx path: UDP segments directed to such socket are assembled into a larger GSO_UDP_L4 packet. The core UDP GRO support is enabled with setsockopt(UDP_GRO). Initial benchmark numbers: Before: udp rx: 1079 MB/s 769065 calls/s After: udp rx: 1466 MB/s 24877 calls/s This change introduces a side effect in respect to UDP tunnels: after a UDP tunnel creation, now the kernel performs a lookup per ingress UDP packet, while before such lookup happened only if the ingress packet carried a valid internal header csum. rfc v2 -> rfc v3: - fixed typos in macro name and comments - really enforce UDP_GRO_CNT_MAX, instead of UDP_GRO_CNT_MAX + 1 - acquire socket lock in UDP_GRO setsockopt rfc v1 -> rfc v2: - use a new option to enable UDP GRO - use static keys to protect the UDP GRO socket lookup Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07udp: implement complete book-keeping for encap_neededPaolo Abeni4-12/+34
The *encap_needed static keys are enabled by UDP tunnels and several UDP encapsulations type, but they are never turned off. This can cause unneeded overall performance degradation for systems where such features are used transiently. This patch introduces complete book-keeping for such keys, decreasing the usage at socket destruction time, if needed, and avoiding that the same socket could increase the key usage multiple times. rfc v3 -> v1: - add socket lock around udp_tunnel_encap_enable() rfc v2 -> rfc v3: - use udp_tunnel_encap_enable() in setsockopt() Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07ipv6: do not drop vrf udp multicast packetsDewi Morgan1-3/+5
For bound udp sockets in a vrf, also check the sdif to get the index for ingress devices enslaved to an l3mdev. Signed-off-by: Dewi Morgan <morgand@vyatta.att-mail.com> Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07ipv6: handling of multicast packets received in VRFMike Manning1-3/+32
If the skb for multicast packets marked as enslaved to a VRF are received, then the secondary device index should be used to obtain the real device. And verify the multicast address against the enslaved rather than the l3mdev device. Signed-off-by: Dewi Morgan <morgand@vyatta.att-mail.com> Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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