- 21 Jul, 2015 40 commits
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Thomas Graf authored
Utilize the new metadata dst to attach encapsulation instructions to the skb. The existing egress_tun_info via the OVS_CB() is left in place until all tunnel vports have been converted to the new method. Signed-off-by:
Thomas Graf <tgraf@suug.ch> Signed-off-by:
Pravin B Shelar <pshelar@nicira.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Thomas Graf authored
This factors out the device configuration out of the RTNL newlink API which allows for in-kernel creation of VXLAN net_devices. Signed-off-by:
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Thomas Graf authored
This add the ability to select a routing table based on the tunnel id which allows to maintain separate routing tables for each virtual tunnel network. ip rule add from all tunnel-id 100 lookup 100 ip rule add from all tunnel-id 200 lookup 200 A new static key controls the collection of metadata at tunnel level upon demand. Signed-off-by:
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Thomas Graf authored
This introduces a new IP tunnel lightweight tunnel type which allows to specify IP tunnel instructions per route. Only IPv4 is supported at this point. Signed-off-by:
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Thomas Graf authored
Add a new flowi_tunnel structure which is a subset of ip_tunnel_key to allow routes to match on tunnel metadata. For now, the tunnel id is added to flowi_tunnel which allows for routes to be bound to specific virtual tunnels. Signed-off-by:
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Thomas Graf authored
Allows putting a VXLAN device into a new flow-based mode in which skbs with a ip_tunnel_info dst metadata attached will be encapsulated according to the instructions stored in there with the VXLAN device defaults taken into consideration. Similar on the receive side, if the VXLAN_F_COLLECT_METADATA flag is set, the packet processing will populate a ip_tunnel_info struct for each packet received and attach it to the skb using the new metadata dst. The metadata structure will contain the outer header and tunnel header fields which have been stripped off. Layers further up in the stack such as routing, tc or netfitler can later match on these fields and perform forwarding. It is the responsibility of upper layers to ensure that the flag is set if the metadata is needed. The flag limits the additional cost of metadata collecting based on demand. This prepares the VXLAN device to be steered by the routing and other subsystems which allows to support encapsulation for a large number of tunnel endpoints and tunnel ids through a single net_device which improves the scalability. It also allows for OVS to leverage this mode which in turn allows for the removal of the OVS specific VXLAN code. Because the skb is currently scrubed in vxlan_rcv(), the attachment of the new dst metadata is postponed until after scrubing which requires the temporary addition of a new member to vxlan_metadata. This member is removed again in a later commit after the indirect VXLAN receive API has been removed. Signed-off-by:
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Thomas Graf authored
If output device wants to see the dst, inherit the dst of the original skb and pass it on to generate the ARP request. Signed-off-by:
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Thomas Graf authored
Introduces a new dst_metadata which enables to carry per packet metadata between forwarding and processing elements via the skb->dst pointer. The structure is set up to be a union. Thus, each separate type of metadata requires its own dst instance. If demand arises to carry multiple types of metadata concurrently, metadata dst entries can be made stackable. The metadata dst entry is refcnt'ed as expected for now but a non reference counted use is possible if the reference is forced before queueing the skb. In order to allow allocating dsts with variable length, the existing dst_alloc() is split into a dst_alloc() and dst_init() function. The existing dst_init() function to initialize the subsystem is being renamed to dst_subsys_init() to make it clear what is what. The check before ip_route_input() is changed to ignore metadata dsts and drop the dst inside the routing function thus allowing to interpret metadata in a later commit. Signed-off-by:
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Thomas Graf authored
ip_route_input() unconditionally overwrites the dst. Hide the original dst attached to the skb by calling skb_dst_set(skb, NULL) prior to ip_route_input(). Reported-by:
Julian Anastasov <ja@ssi.bg> Signed-off-by:
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Thomas Graf authored
Rename the tunnel metadata data structures currently internal to OVS and make them generic for use by all IP tunnels. Both structures are kernel internal and will stay that way. Their members are exposed to user space through individual Netlink attributes by OVS. It will therefore be possible to extend/modify these structures without affecting user ABI. Signed-off-by:
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Roopa Prabhu authored
This implementation uses lwtunnel infrastructure to register hooks for mpls tunnel encaps. It picks cues from iptunnel_encaps infrastructure and previous mpls iptunnel RFC patches from Eric W. Biederman and Robert Shearman Signed-off-by:
Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by:
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Roopa Prabhu authored
Signed-off-by:
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Roopa Prabhu authored
This is similar to ipv4 redirect of dst output to lwtunnel output function for encapsulation and xmit. Signed-off-by:
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Roopa Prabhu authored
For input routes with tunnel encap state this patch redirects dst output functions to lwtunnel_output which later resolves to the corresponding lwtunnel output function. This has been tested to work with mpls ip tunnels. Signed-off-by:
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Roopa Prabhu authored
This patch introduces lwtunnel_output function to call corresponding lwtunnels output function to xmit the packet. It adds two variants lwtunnel_output and lwtunnel_output6 for ipv4 and ipv6 respectively today. But this is subject to change when lwtstate will reside in dst or dst_metadata (as per upstream discussions). Signed-off-by:
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Roopa Prabhu authored
This patch adds support in ipv6 fib functions to parse Netlink RTA encap attributes and attach encap state data to rt6_info. Signed-off-by:
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Roopa Prabhu authored
This patch adds support in ipv4 fib functions to parse user provided encap attributes and attach encap state data to fib_nh and rtable. Signed-off-by:
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Roopa Prabhu authored
Provides infrastructure to parse/dump/store encap information for light weight tunnels like mpls. Encap information for such tunnels is associated with fib routes. This infrastructure is based on previous suggestions from Eric Biederman to follow the xfrm infrastructure. Signed-off-by:
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Roopa Prabhu authored
This patch introduces two new RTA attributes to attach encap data to fib routes. Example iproute2 command to attach mpls encap data to ipv4 routes $ip route add 10.1.1.0/30 encap mpls 200 via inet 10.1.1.1 dev swp1 Signed-off-by:
Eric W. Biederman <ebiederm@xmission.com> Signed-off-by:
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Pieter Hollants authored
Added the USB IDs 0x413c:0x81b1 for the "Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card", a Dell-branded Sierra Wireless EM7305 LTE card in M.2 form factor, used eg. in Dell's Latitude E7540 Notebook series. Signed-off-by:
Pieter Hollants <pieter@hollants.com> Signed-off-by:
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Jakub Wilk authored
Signed-off-by:
Jakub Wilk <jwilk@jwilk.net> Signed-off-by:
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David S. Miller authored
Anish Bhatt says: ==================== cxgb4 DCB updates The following patchset covers changes to work better with the userspace tools cgdcbxd and cgrulesengd and improves firmware support for host-managed mode. Also exports traffic class information that was previously not being exported via dcbnl_ops and unfifies how app selector information is passed to firmware. ==================== Signed-off-by: -
Anish Bhatt authored
Signed-off-by:
Anish Bhatt <anish@chelsio.com> Signed-off-by:
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Anish Bhatt authored
Signed-off-by:
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Anish Bhatt authored
Since finally DCB traffic management is still handled by firmware, allow firmware to be fully programmed and queried even in host managed state for the cases where this was previously rejected. Signed-off-by:
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Anish Bhatt authored
This keeps app format passed to firmware the same irrespective of DCBx version in use. Signed-off-by:
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Marcelo Ricardo Leitner authored
Cookie ACK is always received by the association initiator, so fix the comment to avoid confusion. Signed-off-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by:
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David S. Miller authored
Marcelo Ricardo Leitner says: ==================== sctp: fix src address selection if using secondary address This series improves the way SCTP chooses its src address so that the choosen one will always belong to the interface being used for output. v1->v2: - split out the refactoring from the fix itself - Doing a full reverse routing as in v1 is not necessary. Only looking for the interface that has the address and comparing its number is enough. ==================== Acked-by:
Vlad Yasevich <vyasevich@gmail.com> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
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Marcelo Ricardo Leitner authored
In short, sctp is likely to incorrectly choose src address if socket is bound to secondary addresses. This patch fixes it by adding a new check that checks if such src address belongs to the interface that routing identified as output. This is enough to avoid rp_filter drops on remote peer. Details: Currently, sctp will do a routing attempt without specifying the src address and compare the returned value (preferred source) with the addresses that the socket is bound to. When using secondary addresses, this will not match. Then it will try specifying each of the addresses that the socket is bound to and re-routing, checking if that address is valid as src for that dst. Thing is, this check alone is weak: # ip r l 192.168.100.0/24 dev eth1 proto kernel scope link src 192.168.100.149 192.168.122.0/24 dev eth0 proto kernel scope link src 192.168.122.147 # ip a l 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether 52:54:00:15:18:6a brd ff:ff:ff:ff:ff:ff inet 192.168.122.147/24 brd 192.168.122.255 scope global dynamic eth0 valid_lft 2160sec preferred_lft 2160sec inet 192.168.122.148/24 scope global secondary eth0 valid_lft forever preferred_lft forever inet6 fe80::5054:ff:fe15:186a/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether 52:54:00:b3:91:46 brd ff:ff:ff:ff:ff:ff inet 192.168.100.149/24 brd 192.168.100.255 scope global dynamic eth1 valid_lft 2162sec preferred_lft 2162sec inet 192.168.100.148/24 scope global secondary eth1 valid_lft forever preferred_lft forever inet6 fe80::5054:ff:feb3:9146/64 scope link valid_lft forever preferred_lft forever 4: ens9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether 52:54:00:05:47:ee brd ff:ff:ff:ff:ff:ff inet6 fe80::5054:ff:fe05:47ee/64 scope link valid_lft forever preferred_lft forever # ip r g 192.168.100.193 from 192.168.122.148 192.168.100.193 from 192.168.122.148 dev eth1 cache Even if you specify an interface: # ip r g 192.168.100.193 from 192.168.122.148 oif eth1 192.168.100.193 from 192.168.122.148 dev eth1 cache Although this would be valid, peers using rp_filter will drop such packets as their src doesn't match the routes for that interface. Signed-off-by: -
Marcelo Ricardo Leitner authored
Paves the day for the next patch. Functionality stays untouched. Signed-off-by:
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Sowmini Varadhan authored
__vxlan_find_mac invokes ether_addr_equal on the eth_addr field, which triggers unaligned access messages, so rearrange vxlan_fdb to avoid this in the most non-intrusive way. Signed-off-by:
Sowmini Varadhan <sowmini.varadhan@oracle.com> Reviewed-by:
Jiri Pirko <jiri@resnulli.us> Reviewed-by:
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Thomas Graf authored
Depending on system speed, the large lookup/insert/delete loops of the testsuite can take a considerable amount of time to complete causing watchdog warnings to appear. Allow other tasks to be scheduled throughout the loops. Reported-by:
Meelis Roos <mroos@linux.ee> Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Shaohui Xie authored
Teranetics TN2020 is compliant with IEEE 802.3an 10 Gigabit. Signed-off-by:
Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by:
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David S. Miller authored
Alexei Starovoitov says: ==================== bpf: introduce bpf_skb_vlan_push/pop() helpers Let TC+eBPF programs call skb_vlan_push/pop via helpers. v1->v2: - reworded commit log to better explain correctness of re-caching and fixed comparison of mixed endiannes (suggested by Eric) ==================== Signed-off-by: -
Alexei Starovoitov authored
improve accuracy of timing in test_bpf and add two stress tests: - {skb->data[0], get_smp_processor_id} repeated 2k times - {skb->data[0], vlan_push} x 68 followed by {skb->data[0], vlan_pop} x 68 1st test is useful to test performance of JIT implementation of BPF_LD_ABS together with BPF_CALL instructions. 2nd test is stressing skb_vlan_push/pop logic together with skb->data access via BPF_LD_ABS insn which checks that re-caching of skb->data is done correctly. In order to call bpf_skb_vlan_push() from test_bpf.ko have to add three export_symbol_gpl. Signed-off-by:Alexei Starovoitov <ast@plumgrid.com> Signed-off-by:
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Alexei Starovoitov authored
Allow eBPF programs attached to TC qdiscs call skb_vlan_push/pop via helper functions. These functions may change skb->data/hlen which are cached by some JITs to improve performance of ld_abs/ld_ind instructions. Therefore JITs need to recognize bpf_skb_vlan_push/pop() calls, re-compute header len and re-cache skb->data/hlen back into cpu registers. Note, skb->data/hlen are not directly accessible from the programs, so any changes to skb->data done either by these helpers or by other TC actions are safe. eBPF JIT supported by three architectures: - arm64 JIT is using bpf_load_pointer() without caching, so it's ok as-is. - x64 JIT re-caches skb->data/hlen unconditionally after vlan_push/pop calls (experiments showed that conditional re-caching is slower). - s390 JIT falls back to interpreter for now when bpf_skb_vlan_push() is present in the program (re-caching is tbd). These helpers allow more scalable handling of vlan from the programs. Instead of creating thousands of vlan netdevs on top of eth0 and attaching TC+ingress+bpf to all of them, the program can be attached to eth0 directly and manipulate vlans as necessary. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queueDavid S. Miller authored
Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2015-07-17 This series contains updates to igb, ixgbe, ixgbevf, i40e, bnx2x, freescale, siena and dp83640. Jacob provides several patches to clarify the intended way to implement both SIOCSHWTSTAMP and ethtool's get_ts_info(). It is okay to support the specific filters in SIOCSHWTSTAMP by upscaling them to the generic filters. Alex Duyck provides a igb patch to pull the time stamp from the fragment before it gets added to the skb, to avoid a possible issue in which the fragment can possibly be less than IGB_RX_HDR_LEN due to the time stamp being pulled after the copybreak check. Also provides a ixgbevf patch to fold the ixgbevf_pull_tail() call into ixgbevf_add_rx_frag(), which gives the advantage that the fragment does not have to be modified after it is added to the skb. Fan provides patches for ixgbe/ixgbevf to set the receive hash type based on receive descriptor RSS type. Todd provides a fix for igb where on check for link on any media other than copper was not being detected since it was looking on the incorrect PHY page (due to the page being used gets switched before the function to check link gets executed). ==================== Signed-off-by: -
David S. Miller authored
Florian Fainelli says: ==================== net: bcmgenet: PHY initialization rework This patch series reworks how we perform PHY initialization and resets in the GENET driver. Although this contains mostly fixes, some of the changes are a bit too intrusive to be backported to 'net' at the moment. Some of the motivations behind these changes were to reduce the time spent in how performing MDIO transactions, since it is better to perform then when we have interrupts enabled. This reduces the bring-up time of GENET from ~600 msecs down to ~8 msecs, and about the same time for suspend/resume. Since I do not currently have a system which is not DT-aware, can you (Petri, Jaedon) give this a try and confirm things keep working as expected? ==================== Signed-off-by: -
Florian Fainelli authored
Now that we have reworked the way we perform the PHY initialization, we no longer need to differentiate between init time vs. non-init time calls, just use a dev_info_once() print to print the PHY type. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Florian Fainelli authored
We are currently doing a full PHY initialization and even starting the pHY state machine during bcmgenet_mii_init() which is executed in the driver's probe function. This is convenient to determine whether we can attach to a proper PHY device but comes at the expense of spending up to 10ms per MDIO transactions (to reach the waitqueue timeout), which slows things down. This also creates a sitaution where we end-up attaching twice to the PHY, which is not quite correct either. Fix this by moving bcmgenet_mii_probe() into bcmgenet_open() and update its error path accordingly. Avoid printing the message "attached PHY at address 1 [...]" every time we bring up/down the interface and remove this print since it duplicates what the PHY driver already does for us. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by:
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