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2014-12-08ipv4: warn once on passing AF_INET6 socket to ip_recv_errorWillem de Bruijn1-0/+2
One line change, in response to catching an occurrence of this bug. See also fix f4713a3dfad0 ("net-timestamp: make tcp_recvmsg call ...") Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05samples: bpf: large eBPF program in CAlexei Starovoitov3-0/+263
sockex2_kern.c is purposefully large eBPF program in C. llvm compiles ~200 lines of C code into ~300 eBPF instructions. It's similar to __skb_flow_dissect() to demonstrate that complex packet parsing can be done by eBPF. Then it uses (struct flow_keys)->dst IP address (or hash of ipv6 dst) to keep stats of number of packets per IP. User space loads eBPF program, attaches it to loopback interface and prints dest_ip->#packets stats every second. Usage: $sudo samples/bpf/sockex2 ip 127.0.0.1 count 19 ip 127.0.0.1 count 178115 ip 127.0.0.1 count 369437 ip 127.0.0.1 count 559841 ip 127.0.0.1 count 750539 Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05samples: bpf: trivial eBPF program in CAlexei Starovoitov4-1/+89
this example does the same task as previous socket example in assembler, but this one does it in C. eBPF program in kernel does: /* assume that packet is IPv4, load one byte of IP->proto */ int index = load_byte(skb, ETH_HLEN + offsetof(struct iphdr, protocol)); long *value; value = bpf_map_lookup_elem(&my_map, &index); if (value) __sync_fetch_and_add(value, 1); Corresponding user space reads map[tcp], map[udp], map[icmp] and prints protocol stats every second Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05samples: bpf: elf_bpf file loaderAlexei Starovoitov3-0/+267
simple .o parser and loader using BPF syscall. .o is a standard ELF generated by LLVM backend It parses elf file compiled by llvm .c->.o - parses 'maps' section and creates maps via BPF syscall - parses 'license' section and passes it to syscall - parses elf relocations for BPF maps and adjusts BPF_LD_IMM64 insns by storing map_fd into insn->imm and marking such insns as BPF_PSEUDO_MAP_FD - loads eBPF programs via BPF syscall One ELF file can contain multiple BPF programs. int load_bpf_file(char *path); populates prog_fd[] and map_fd[] with FDs received from bpf syscall bpf_helpers.h - helper functions available to eBPF programs written in C Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05samples: bpf: example of stateful socket filteringAlexei Starovoitov4-0/+144
this socket filter example does: - creates arraymap in kernel with key 4 bytes and value 8 bytes - loads eBPF program which assumes that packet is IPv4 and loads one byte of IP->proto from the packet and uses it as a key in a map r0 = skb->data[ETH_HLEN + offsetof(struct iphdr, protocol)]; *(u32*)(fp - 4) = r0; value = bpf_map_lookup_elem(map_fd, fp - 4); if (value) (*(u64*)value) += 1; - attaches this program to raw socket - every second user space reads map[IPPROTO_TCP], map[IPPROTO_UDP], map[IPPROTO_ICMP] to see how many packets of given protocol were seen on loopback interface Usage: $sudo samples/bpf/sock_example TCP 0 UDP 0 ICMP 0 packets TCP 187600 UDP 0 ICMP 4 packets TCP 376504 UDP 0 ICMP 8 packets TCP 563116 UDP 0 ICMP 12 packets TCP 753144 UDP 0 ICMP 16 packets Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05net: sock: allow eBPF programs to be attached to socketsAlexei Starovoitov18-2/+155
introduce new setsockopt() command: setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, sizeof(prog_fd)) where prog_fd was received from syscall bpf(BPF_PROG_LOAD, attr, ...) and attr->prog_type == BPF_PROG_TYPE_SOCKET_FILTER setsockopt() calls bpf_prog_get() which increments refcnt of the program, so it doesn't get unloaded while socket is using the program. The same eBPF program can be attached to multiple sockets. User task exit automatically closes socket which calls sk_filter_uncharge() which decrements refcnt of eBPF program Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05bpf: verifier: add checks for BPF_ABS | BPF_IND instructionsAlexei Starovoitov2-2/+69
introduce program type BPF_PROG_TYPE_SOCKET_FILTER that is used for attaching programs to sockets where ctx == skb. add verifier checks for ABS/IND instructions which can only be seen in socket filters, therefore the check: if (env->prog->aux->prog_type != BPF_PROG_TYPE_SOCKET_FILTER) verbose("BPF_LD_ABS|IND instructions are only allowed in socket filters\n"); Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05tun/macvtap: use consume_skb() instead of kfree_skb() when neededJason Wang2-2/+8
To be more friendly with drop monitor, we should only call kfree_skb() when the packets were dropped and use consume_skb() in other cases. Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05net-PA Semi: Deletion of unnecessary checks before the function call "pci_dev_put"Markus Elfring1-4/+2
The pci_dev_put() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05net-ipvlan: Deletion of an unnecessary check before the function call "free_percpu"Markus Elfring1-2/+1
The free_percpu() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Mahesh Bandewar <maheshb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05net: cassini: Deletion of an unnecessary check before the function call "vfree"Markus Elfring1-2/+1
The vfree() function performs also input parameter validation. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05stmmac: pci: allocate memory resources dynamicallyAndy Shevchenko1-24/+31
Instead of using global variables we are going to use dynamically allocated memory. It allows to append a support of more than one ethernet adapter which might have different settings simultaniously. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-05ixgbevf: fix possible crashes in probe and removeEmil Tantilov1-4/+13
This patch resolves couple of issues in ixgbevf_probe/remove(): 1. Fix a case where adapter->state is tested after free_netdev() this is same as the patch for ixgbe from Daniel Borkmann <dborkman@redhat.com>: commit b5b2ffc0574e1f27 ("ixgbe: fix use after free adapter->state test in ixgbe_remove/ixgbe_probe") 2. Move pci_set_drvdata() after all the error checks in ixgbevf_probe() and then add a check in ixgbevf_probe() to avoid running the cleanup functions twice in cases where probe failed. CC: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbevf: add support for X550 VFsEmil Tantilov5-5/+38
This patch adds initial support for VFs on a new mac - X550. The patch adds the basic structures and device IDs for the X550 VFs that would allow the driver to load and pass traffic. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: fix crash on rmmod after probe failEmil Tantilov1-2/+8
The driver has logic to free up used data in case any of the checks in ixgbe_probe() fail, however there is a similar set of cleanups that can occur on driver unload in ixgbe_remove() which can cause the rmmod command to crash. This patch aims to fix the logic by moving pci_set_drvdata() after all error checks and then adds a check in ixgbe_remove() to skip it altogether if adapter comes up empty. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: bump version numberDon Skidmore1-1/+1
Since we now support X550 mac's bump the version number to reflect this. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: Add X550 support function pointersDon Skidmore10-59/+1732
This patch extends the function pointer structure to include the new X550 class MAC types. This creates a new file ixgbe_x550.c that contains all of the new methods. Because of similarities to the X540 part in some cases we just use it's methods where they can be used without any modification. These exported functions are now defined in the new ixgbe_x540.h file. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: cleanup checksum to allow error resultsDon Skidmore4-53/+96
Currently the shared code checksum calculation function only returns a u16 and cannot return an error code. Unfortunately a variety of errors can happen that completely prevent the calculation of a checksum. So, change the function return value from a u16 to an s32 and return a negative value on error, or the positive checksum value when there is no error. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: add methods for combined read and write operationsDon Skidmore3-0/+188
Some X550 procedures will be using CS4227 PHY and need to perform combined read and write operations. This patch adds those methods. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: Add x550 SW/FW semaphore supportDon Skidmore5-29/+25
The X550 hardware will use more bits in the mask, so change the prototypes to match. This larger mask will require changes in callers which use the higher bits. Likewise since X550 will use different semaphore mask values and will use the lan_id value. So save these values in the ixgbe_phy_info struct. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: Add timeout parameter to ixgbe_host_interface_commandDon Skidmore2-13/+37
Since on X550 we use host interface commands to read,write and erase some commands require more time to complete. So this adds a timeout parameter to ixgbe_host_interface_command as wells as a return_data parameter allowing us to return with any data. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: add support for X550 extended RSS supportDon Skidmore5-25/+107
The new X550 family of MAC's will have a larger RSS hash (16 -> 64). It will also support individual VF to have their own independent RSS hash key. This patch will enable this functionality Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: remove CIAA/D register reads from bad VF checkEmil Tantilov1-71/+74
Accessing the CIAA/D register can block access to the PCI config space. This patch removes the read/write operations to the CIAA/D registers and makes use of standard kernel functions for accessing the PCI config space. In addition it moves ixgbevf_check_for_bad_vf() into the watchdog subtask which reduces the frequency of the checks. CC: Alex Williamson <alex.williamson@redhat.com> Reported-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: Look up MAC address in Open Firmware or IDPROMMartin K Petersen1-0/+35
Attempt to look up the MAC address in Open Firmware on systems that support it. On SPARC resort to using the IDPROM if no OF address is found. Signed-off-by: Martin K Petersen <martin.petersen@oracle.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: Remove tail write abstraction and add missing barrierAlexander Duyck2-25/+20
This change cleans up the tail writes for the ixgbe descriptor queues. The current implementation had me confused as I wasn't sure if it was still making use of the surprise remove logic or not. It also adds the mmiowb which is needed on ia64, mips, and a couple other architectures in order to synchronize the MMIO writes with the Tx queue _xmit_lock spinlock. Cc: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05ixgbe: Clean-up page reuse codeAlexander Duyck1-42/+36
This patch cleans up the page reuse code getting it into a state where all the workarounds needed are in place as well as cleaning up a few minor oversights such as using __free_pages instead of put_page to drop a locally allocated page. It also cleans up how we clear the descriptor status bits. Previously they were zeroed as a part of clearing the hdr_addr. However the hdr_addr is a 64 bit field and 64 bit writes can be a bit more expensive on on 32 bit systems. Since we are no longer using the header split feature the upper 32 bits of the address no longer need to be cleared. As a result we can just clear the status bits and leave the length and VLAN fields as-is which should provide more information in debugging. Cc: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-03netfilter: ipset: Explicitly add padding elements to hash:net, net and hash:net, port, netJozsef Kadlecsik2-0/+4
The elements must be u32 sized for the used hash function. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-12-03netfilter: ipset: Allocate the proper size of memory when /0 networks are supportedJozsef Kadlecsik1-2/+1
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-12-03netfilter: ipset: Simplify cidr handling for hash:*net* typesJozsef Kadlecsik1-28/+28
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-12-03netfilter: ipset: Indicate when /0 networks are supportedJozsef Kadlecsik2-1/+2
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-12-03netfilter: ipset: Alignment problem between 64bit kernel 32bit userspaceJozsef Kadlecsik3-6/+88
Sven-Haegar Koch reported the issue: sims:~# iptables -A OUTPUT -m set --match-set testset src -j ACCEPT iptables: Invalid argument. Run `dmesg' for more information. In syslog: x_tables: ip_tables: set.3 match: invalid size 48 (kernel) != (user) 32 which was introduced by the counter extension in ipset. The patch fixes the alignment issue with introducing a new set match revision with the fixed underlying 'struct ip_set_counter_match' structure. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-12-03netfilter: ipset: Support updating extensions when the set is fullJozsef Kadlecsik1-23/+17
When the set was full (hash type and maxelem reached), it was not possible to update the extension part of already existing elements. The patch removes this limitation. Fixes: https://bugzilla.netfilter.org/show_bug.cgi?id=880 Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-12-02tun: Fix GSO meta-data handling in tun_get_userHerbert Xu1-1/+1
When we write the GSO meta-data in tun_get_user we end up advancing the IO vector twice, thus exhausting the user buffer before we can finish writing the packet. Fixes: f5ff53b4d97c ("{macvtap,tun}_get_user(): switch to iov_iter") Reported-by: Marcelo Ricardo Leitner <mleitner@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02rocker: Use logical operators on booleansThomas Graf1-8/+8
Silences various sparse warnings Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02rocker: Add proper validation of Netlink attributesThomas Graf1-0/+9
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02rocker: add ndo_bridge_setlink/getlink support for learning policyScott Feldman2-0/+100
Rocker ports will use new "swdev" hwmode for bridge port offload policy. Current supported policy settings are BR_LEARNING and BR_LEARNING_SYNC. User can turn on/off device port FDB learning and syncing to bridge. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02rocker: implement ndo_fdb_dumpJiri Pirko1-0/+73
Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02rocker: implement L2 bridge offloadingScott Feldman1-1/+669
Add L2 bridge offloading support to rocker driver. Here, the Linux bridge driver is used to collect swdev ports into a tagged (or untagged) VLAN bridge. The switchdev will offload from the bridge driver the following L2 bridging functions: - Learning of neighbor MAC addresses on VLAN X Learned mac/vlan is installed in bridge FDB. (And removed when device unlearns mac/vlan). Learning must be turned off on each bridge port to disable the feature in the bridge driver. - Flooding of multicast/broadcast and unknown unicast pkts to (STP) active ports in bridge. The bridge driver is unaware of the flooding happening at the device level. Flooding must be turned off on each bridge port to disable the feature on the bridge driver. - STP port state is pushed down to driver/device. The bridge still processes STP BDPUs and maintains port STP state (for all VLANs in bridge), but the driver/device must be notified of port STP state change to program the device. Multiple (VLAN) bridges are supported. The device (implemented per the OF-DPA spec) must use a portion of the VLAN namespace for internal VLANs. Right now, the upper 255 VLANs (0xf00 to 0xffe) are used as internal VLAN IDs for untagged traffic and are not available as port VLANs. The driver uses the following interfaces: 1. To track VLAN add/del on ports in bridge: .ndo_vlan_rx_add_vid .ndo_vlan_rx_kill_vid 2. To track port add/del membership in bridge: NETDEV_CHANGEUPPER netdevice notifier 3. To catch static FDB entries installed on bridge/vlan by user using netlink: .ndo_fdb_add .ndo_fdb_del 4. To be notified on port STP state change: .ndo_switch_port_stp_update 5. To notify bridge driver on learned/forgotten mac/vlans on bridge port: br_fdb_external_learn_add br_fdb_external_learn_del Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02rocker: implement rocker ofdpa flow table manipulationScott Feldman1-2/+1467
The rocker driver maintains 4 hash tables: flows, groups, FDB, and VLANs. Flow and group tables track the entries installed to OF-DPA tables, per the OF-DPA spec. See OF-DPA spec for full description of fields in each flow and group table. New table entries are pushed to the device with ADD cmd. Updated entries are pushed to the device with MOD cmd. For flow table entries, a crc32 key is made from fields of the particular field. For group table entries, the group_id is used as the key. The FDB table tracks fdb entries learned by the device or manually pushed to the bridge by the user. A crc32 key is made from the port/mac/vlan tuple for the fdb entry. The VLAN table tracks the ifindex-to-internal-vlan mapping for untagged pkts. On ingress, an untagged pkt is inserted with an internal VLAN ID based on the input port's current internal VLAN ID. The input port's internal VLAN will either be referenced by the port's ifindex, if not bridged, or the containing bridge's ifindex, if bridged. Since the ifindex space isn't within a fixed range, uses a hash table (with ifindex as key) to track internal VLAN ID for a given ifindex. The internal VLAN ID range is fixed and currently uses the upper 255 VLAN IDs, starting at 0xf00. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02rocker: introduce rocker switch driverJiri Pirko7-0/+2528
This patch introduces the first driver to benefit from the switchdev infrastructure and to implement newly introduced switch ndos. This is a driver for emulated switch chip implemented in qemu: https://github.com/sfeldma/qemu-rocker/ This patch is a result of joint work with Scott Feldman. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Reviewed-by: Thomas Graf <tgraf@suug.ch> Reviewed-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02bridge: add brport flags to dflt bridge_getlinkScott Feldman4-4/+43
To allow brport device to return current brport flags set on port. Add returned flags to nested IFLA_PROTINFO netlink msg built in dflt getlink. With this change, netlink msg returned for bridge_getlink contains the port's offloaded flag settings (the port's SELF settings). Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Acked-by: Thomas Graf <tgraf@suug.ch> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02bridge: add new hwmode swdevScott Feldman1-0/+1
Current hwmode settings are "vepa" or "veb". These are for NIC interfaces with basic bridging function offloaded to HW. Add new "swdev" for full switch device offloads. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02bridge: add new brport flag LEARNING_SYNCScott Feldman2-0/+2
This policy flag controls syncing of learned FDB entries to bridge's FDB. If on, FDB entries learned on bridge port device will be synced. If off, device may still learn new FDB entries but they will not be synced with bridge's FDB. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02bridge: move private brport flags to if_bridge.h so port drivers can use flagsScott Feldman2-10/+12
Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02bridge: add API to notify bridge driver of learned FBD on offloaded deviceScott Feldman4-2/+111
When the swdev device learns a new mac/vlan on a port, it sends some async notification to the driver and the driver installs an FDB in the device. To give a holistic system view, the learned mac/vlan should be reflected in the bridge's FBD table, so the user, using normal iproute2 cmds, can view what is currently learned by the device. This API on the bridge driver gives a way for the swdev driver to install an FBD entry in the bridge FBD table. (And remove one). This is equivalent to the device running these cmds: bridge fdb [add|del] <mac> dev <dev> vid <vlan id> master This patch needs some extra eyeballs for review, in paricular around the locking and contexts. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02bridge: call netdev_sw_port_stp_update when bridge port STP status changesScott Feldman4-0/+38
To notify switch driver of change in STP state of bridge port, add new .ndo op and provide switchdev wrapper func to call ndo op. Use it in bridge code then. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Acked-by: Thomas Graf <tgraf@suug.ch> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02net-sysfs: expose physical switch id for particular deviceJiri Pirko2-0/+32
Signed-off-by: Jiri Pirko <jiri@resnulli.us> Reviewed-by: Thomas Graf <tgraf@suug.ch> Acked-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02rtnl: expose physical switch id for particular deviceJiri Pirko2-1/+26
The netdevice represents a port in a switch, it will expose IFLA_PHYS_SWITCH_ID value via rtnl. Two netdevices with the same value belong to one physical switch. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Reviewed-by: Thomas Graf <tgraf@suug.ch> Acked-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02net: introduce generic switch devices supportJiri Pirko9-0/+161
The goal of this is to provide a possibility to support various switch chips. Drivers should implement relevant ndos to do so. Now there is only one ndo defined: - for getting physical switch id is in place. Note that user can use random port netdevice to access the switch. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Reviewed-by: Thomas Graf <tgraf@suug.ch> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02net: rename netdev_phys_port_id to more generic nameJiri Pirko8-17/+17
So this can be reused for identification of other "items" as well. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Reviewed-by: Thomas Graf <tgraf@suug.ch> Acked-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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