- 31 Mar, 2021 19 commits
-
-
Shannon Nelson authored
Rework the heartbeat checks to be sure that we're getting an atomic operation. Through testing we found occasions where a separate thread could clash with this check and cause erroneous heartbeat check results. Signed-off-by:
Allen Hubbe <allenbh@pensando.io> Signed-off-by:
Shannon Nelson <snelson@pensando.io> Signed-off-by:
David S. Miller <davem@davemloft.net>
-
Shannon Nelson authored
Use the actual pointer that we care about as the subject of the sizeof, rather than a struct name. Signed-off-by:
-
Shannon Nelson authored
Increment our dma-error counter in a couple of spots that were missed before. Signed-off-by:
-
David S. Miller authored
Ioana Ciornei says: ==================== dpaa2-switch: add STP support This patch set adds support for STP to the dpaa2-switch. First of all, it fixes a bug which was determined by the improper usage of bridge BR_STATE_* values directly in the MC ABI. The next patches deal with creating an ACL table per port and trapping the STP frames to the control interface by adding an entry into each table. The last patch configures proper learning state depending on the STP state. ==================== Signed-off-by: -
Ioana Ciornei authored
Depending on what STP state a port is in, the learning on that port should be enabled or disabled. When the STP state is DISABLED, BLOCKING or LISTENING no learning should be happening irrespective of what the bridge previously requested. The learning state is changed to be the one setup by the bridge when the STP state is LEARNING or FORWARDING. Signed-off-by:
Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by:
-
Ioana Ciornei authored
Add an ACL entry in each port's ACL table to redirect any frame that has the destination MAC address equal to the STP dmac to the control interface. Signed-off-by:
-
Ioana Ciornei authored
Keep track of the current learning state per port so that we can reference it in the next patches when setting up a STP state. Signed-off-by:
-
Ioana Ciornei authored
In order to trap frames to the CPU, the DPAA2 switch uses the ACL table. At probe time, create an ACL table for each switch port so that in the next patches we can use this to trap STP frames and redirect them to the control interface. Signed-off-by:
-
Ioana Ciornei authored
The numerical values used for STP states are different between the bridge and the MC ABI therefore, the direct usage of the BR_STATE_* macros directly in the structures passed to the firmware is incorrect. Create a separate function that translates between the bridge STP states and the enum that holds the STP state as seen by the Management Complex. Signed-off-by:
-
Vlad Buslov authored
Use act_simple to verify that action created with 'tc actions change' command exists after command returns. The goal is to verify internal action API reference counting to ensure that the case when netlink message has NLM_F_REPLACE flag set but action with specified index doesn't exist is handled correctly. Signed-off-by:
Vlad Buslov <vladbu@nvidia.com> Signed-off-by:
-
David S. Miller authored
Paolo Abeni says: ==================== udp: GRO L4 improvements This series improves the UDP L4 - either 'forward' or 'frag_list' - co-existence with UDP tunnel GRO, allowing the first to take place correctly even for encapsulated UDP traffic. The first for patches are mostly bugfixes, addressing some GRO edge-cases when both tunnels and L4 are present, enabled and in use. The next 3 patches avoid unneeded segmentation when UDP GRO traffic traverses in the receive path UDP tunnels. Finally, some self-tests are included, covering the relevant GRO scenarios. Even if most patches are actually bugfixes, this series is targeting net-next, as overall it makes available a new feature. v2 -> v3: - no code changes, more verbose commit messages and comment in patch 1/8 v1 -> v2: - restrict post segmentation csum fixup to the only the relevant pkts - use individual 'accept_gso_type' fields instead of whole gso bitmask (Willem) - use only ipv6 addesses from test range in self-tests (Willem) - hopefully clarified most individual patches commit messages ==================== Signed-off-by: -
Paolo Abeni authored
Create a bunch of virtual topologies and verify that NETIF_F_GRO_FRAGLIST or NETIF_F_GRO_UDP_FWD-enabled devices aggregate the ingress packets as expected. Additionally check that the aggregate packets are segmented correctly when landing on a socket Also test SKB_GSO_FRAGLIST and SKB_GSO_UDP_L4 aggregation on top of UDP tunnel (vxlan) v1 -> v2: - hopefully clarify the commit message - moved the overlay network ipv6 range into the 'documentation' reserved range (Willem) Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Acked-by:
Willem de Bruijn <willemb@google.com> Signed-off-by:
-
Paolo Abeni authored
Similar to the previous commit, let even geneve passthrou the L4 GRO packets Signed-off-by:
-
Paolo Abeni authored
Similar to the previous commit, let even geneve passthrou the L4 GRO packets Signed-off-by:
-
Paolo Abeni authored
When passing up an UDP GSO packet with L4 aggregation, there is no need to segment it at the vxlan level. We can propagate the packet untouched and let it be segmented later, if needed. Introduce an helper to allow let the UDP socket to accept any L4 aggregation and use it in the vxlan driver. v1 -> v2: - updated to use the newly introduced UDP socket 'accept*' fields Signed-off-by:
-
Paolo Abeni authored
Currently the UDP protocol delivers GSO_FRAGLIST packets to the sockets without the expected segmentation. This change addresses the issue introducing and maintaining a couple of new fields to explicitly accept SKB_GSO_UDP_L4 or GSO_FRAGLIST packets. Additionally updates udp_unexpected_gso() accordingly. UDP sockets enabling UDP_GRO stil keep accept_udp_fraglist zeroed. v1 -> v2: - use 2 bits instead of a whole GSO bitmask (Willem) Fixes: 9fd1ff5d ("udp: Support UDP fraglist GRO/GSO.") Signed-off-by:
-
Paolo Abeni authored
After the previous patch, the stack can do L4 UDP aggregation on top of a UDP tunnel. In such scenario, udp{4,6}_gro_complete will be called twice. This function will enter its is_flist branch immediately, even though that is only correct on the second call, as GSO_FRAGLIST is only relevant for the inner packet. Instead, we need to try first UDP tunnel-based aggregation, if the GRO packet requires that. This patch changes udp{4,6}_gro_complete to skip the frag list processing when while encap_mark == 1, identifying processing of the outer tunnel header. Additionally, clears the field in udp_gro_complete() so that we can enter the frag list path on the next round, for the inner header. v1 -> v2: - hopefully clarified the commit message Reviewed-by: -
Paolo Abeni authored
If NETIF_F_GRO_FRAGLIST or NETIF_F_GRO_UDP_FWD are enabled, and there are UDP tunnels available in the system, udp_gro_receive() could end-up doing L4 aggregation (either SKB_GSO_UDP_L4 or SKB_GSO_FRAGLIST) at the outer UDP tunnel level for packets effectively carrying and UDP tunnel header. That could cause inner protocol corruption. If e.g. the relevant packets carry a vxlan header, different vxlan ids will be ignored/ aggregated to the same GSO packet. Inner headers will be ignored, too, so that e.g. TCP over vxlan push packets will be held in the GRO engine till the next flush, etc. Just skip the SKB_GSO_UDP_L4 and SKB_GSO_FRAGLIST code path if the current packet could land in a UDP tunnel, and let udp_gro_receive() do GRO via udp_sk(sk)->gro_receive. The check implemented in this patch is broader than what is strictly needed, as the existing UDP tunnel could be e.g. configured on top of a different device: we could end-up skipping GRO at-all for some packets. Anyhow, that is a very thin corner case and covering it will add quite a bit of complexity. v1 -> v2: - hopefully clarify the commit message Fixes: 9fd1ff5d ("udp: Support UDP fraglist GRO/GSO.") Fixes: 36707061 ("udp: allow forwarding of plain (non-fraglisted) UDP GRO packets") Reviewed-by:
-
Paolo Abeni authored
When UDP packets generated locally by a socket with UDP_SEGMENT traverse the following path: UDP tunnel(xmit) -> veth (segmentation) -> veth (gro) -> UDP tunnel (rx) -> UDP socket (no UDP_GRO) ip_summed will be set to CHECKSUM_PARTIAL at creation time and such checksum mode will be preserved in the above path up to the UDP tunnel receive code where we have: __iptunnel_pull_header() -> skb_pull_rcsum() -> skb_postpull_rcsum() -> __skb_postpull_rcsum() The latter will convert the skb to CHECKSUM_NONE. The UDP GSO packet will be later segmented as part of the rx socket receive operation, and will present a CHECKSUM_NONE after segmentation. Additionally the segmented packets UDP CB still refers to the original GSO packet len. Overall that causes unexpected/wrong csum validation errors later in the UDP receive path. We could possibly address the issue with some additional checks and csum mangling in the UDP tunnel code. Since the issue affects only this UDP receive slow path, let's set a suitable csum status there. Note that SKB_GSO_UDP_L4 or SKB_GSO_FRAGLIST packets lacking an UDP encapsulation present a valid checksum when landing to udp_queue_rcv_skb(), as the UDP checksum has been validated by the GRO engine. v2 -> v3: - even more verbose commit message and comments v1 -> v2: - restrict the csum update to the packets strictly needing them - hopefully clarify the commit message and code comments Signed-off-by:
-
- 30 Mar, 2021 21 commits
-
-
Jiapeng Chong authored
Fix the following whitescan warning: Calling "zlib_inflateEnd(&state->strm)" is only useful for its return value, which is ignored. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by:
-
David S. Miller authored
Huazhong Tan says: ==================== net: remove repeated words This patch-set removes some repeated words in comments. ==================== Signed-off-by: -
Peng Li authored
Remove repeated words "that" and "the". Signed-off-by:
Peng Li <lipeng321@huawei.com> Signed-off-by:
Huazhong Tan <tanhuazhong@huawei.com> Acked-by:
Alex Elder <elder@linaro.org> Signed-off-by:
-
Peng Li authored
Remove repeated word "to". Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
-
Peng Li authored
Remove repeated word "that". Signed-off-by:
-
Peng Li authored
Remove repeated words "to" and "try". Signed-off-by:
-
David S. Miller authored
Wang Qing says: ==================== Clean up obsolete TODO files It is mentioned in the official documents of the Linux Foundation and WIKI that you can participate in its development according to the TODO files of each module. But the TODO files here has not been updated for 15 years, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. ==================== Signed-off-by: -
Wang Qing authored
The TODO file here has not been updated from 2005, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by:
Wang Qing <wangqing@vivo.com> Signed-off-by:
-
Wang Qing authored
The TODO file here has not been updated for 13 years, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by:
-
Wang Qing authored
The TODO file here has not been updated for 14 years, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by:
-
Wang Qing authored
The TODO file here has not been updated from 2005, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by:
-
Wang Qing authored
The TODO file here has not been updated from 2.6.12 for more than 15 years. Its existence will mislead developers seeking to view outdated information. Signed-off-by:
-
Wang Qing authored
The TODO file here has not been updated for 15 years, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by:
-
Yang Yingliang authored
It already has null pointer check in kfree_skb(), remove pointless pointer check before kfree_skb(). Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Signed-off-by:
-
Wong Vee Khee authored
Cross time-stamping mechanism used in certain instance of Intel mGbE may run at different clock frequency in comparison to the clock frequency used by processor, so we introduce cross T/S frequency adjustment to ensure TSC calculation is correct when processor got the cross time-stamps. Signed-off-by:
Wong Vee Khee <vee.khee.wong@linux.intel.com> Signed-off-by:
-
Shixin Liu authored
There's no need to declare a list and then init it manually, just use the LIST_HEAD() macro. Signed-off-by:
Shixin Liu <liushixin2@huawei.com> Signed-off-by:
-
Shixin Liu authored
spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Changelog: From v1: 1. fix the mistake reported by kernel test robot. Signed-off-by:
-
David S. Miller authored
Andreas Roeseler says: ==================== add support for RFC 8335 PROBE The popular utility ping has several severe limitations, such as the inability to query specific interfaces on a node and requiring bidirectional connectivity between the probing and probed interfaces. RFC 8335 attempts to solve these limitations by creating the new utility PROBE which is a specialized ICMP message that makes use of the ICMP Extension Structure outlined in RFC 4884. This patchset adds definitions for the ICMP Extended Echo Request and Reply (PROBE) types for both IPV4 and IPV6, adds a sysctl to enable responses to PROBE messages, expands the list of supported ICMP messages to accommodate PROBE types, adds ipv6_dev_find into ipv6_stubs, and adds functionality to respond to PROBE requests. Changes: v1 -> v2: - Add AFI definitions - Switch to functions such as dev_get_by_name and ip_dev_find to lookup net devices v2 -> v3: Suggested by Willem de Bruijn <willemdebruijn.kernel@gmail.com> - Add verification of incoming messages before looking up netdev - Add prefix for PROBE specific defined variables - Use proc_dointvec_minmax with zero and one for sysctl - Create struct icmp_ext_echo_iio for parsing incoming packets Reported-by:
kernel test robot <lkp@intel.com> Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> - Include net/addrconf.h library for ipv6_dev_find v3 -> v4: - Use in_addr instead of __be32 for storing IPV4 addresses - Use IFNAMSIZ to statically allocate space for name in icmp_ext_echo_iio Suggested by Willem de Bruijn <willemdebruijn.kernel@gmail.com> - Use skb_header_pointer to verify fields in incoming message - Add check to ensure that extobj_hdr.length is valid - Check to ensure object payload is padded with ASCII NULL characters when probing by name, as specified by RFC 8335 - Statically allocate buff using IFNAMSIZ - Add rcu blocking around ipv6_dev_find - Use __in_dev_get_rcu to access IPV4 addresses of identified net_device - Remove check for ICMPV6 PROBE types v4 -> v5: - Statically allocate buff to size IFNAMSIZ on declaration - Remove goto probe in favor of single branch - Remove strict check for incoming PROBE request padding to nearest 32-bit boundary Reported-by:
-
Andreas Roeseler authored
Modify the icmp_rcv function to check PROBE messages and call icmp_echo if a PROBE request is detected. Modify the existing icmp_echo function to respond ot both ping and PROBE requests. This was tested using a custom modification to the iputils package and wireshark. It supports IPV4 probing by name, ifindex, and probing by both IPV4 and IPV6 addresses. It currently does not support responding to probes off the proxy node (see RFC 8335 Section 2). The modification to the iputils package is still in development and can be found here: https://github.com/Juniper-Clinic-2020/iputils.git. It supports full sending functionality of PROBE requests, but currently does not parse the response messages, which is why Wireshark is required to verify the sent and recieved PROBE messages. The modification adds the ``-e'' flag to the command which allows the user to specify the interface identifier to query the probed host. An example usage would be <./ping -4 -e 1 [destination]> to send a PROBE request of ifindex 1 to the destination node. Signed-off-by:
Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by:
-
Andreas Roeseler authored
Add ipv6_dev_find to ipv6_stub to allow lookup of net_devices by IPV6 address in net/ipv4/icmp.c. Signed-off-by:
-
Andreas Roeseler authored
Modify the ping_supported function to support PROBE message types. This allows tools such as the ping command in the iputils package to be modified to send PROBE requests through the existing framework for sending ping requests. Signed-off-by:
-
