1. 07 Apr, 2022 2 commits
    • Volodymyr Mytnyk's avatar
      prestera: acl: add action hw_stats support · e8bd7025
      Volodymyr Mytnyk authored
      Currently, when user adds a tc action and the action gets offloaded,
      the user expects the HW stats to be counted also. This limits the
      amount of supported offloaded filters, as HW counter resources may
      be quite limited. Without counter assigned, the HW is capable to
      carry much more filters.
      
      To resolve the issue above, the following types of HW stats are
      offloaded and supported by the driver:
      
      any       - current default, user does not care about the type.
      delayed   - polled from HW periodically.
      disabled  - no HW stats needed.
      immediate - not supported.
      
      Example:
        tc filter add dev PORT ingress proto ip flower skip_sw ip_proto 0x11 \
          action drop
        tc filter add dev PORT ingress proto ip flower skip_sw ip_proto 0x12 \
          action drop hw_stats disabled
        tc filter add dev sw1p1 ingress proto ip flower skip_sw ip_proto 0x14 \
          action drop hw_stats delayed
      Signed-off-by: default avatarVolodymyr Mytnyk <vmytnyk@marvell.com>
      Link: https://lore.kernel.org/r/1649164814-18731-1-git-send-email-volodymyr.mytnyk@plvision.euSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      e8bd7025
    • Niels Dossche's avatar
      ipv6: fix locking issues with loops over idev->addr_list · 51454ea4
      Niels Dossche authored
      idev->addr_list needs to be protected by idev->lock. However, it is not
      always possible to do so while iterating and performing actions on
      inet6_ifaddr instances. For example, multiple functions (like
      addrconf_{join,leave}_anycast) eventually call down to other functions
      that acquire the idev->lock. The current code temporarily unlocked the
      idev->lock during the loops, which can cause race conditions. Moving the
      locks up is also not an appropriate solution as the ordering of lock
      acquisition will be inconsistent with for example mc_lock.
      
      This solution adds an additional field to inet6_ifaddr that is used
      to temporarily add the instances to a temporary list while holding
      idev->lock. The temporary list can then be traversed without holding
      idev->lock. This change was done in two places. In addrconf_ifdown, the
      list_for_each_entry_safe variant of the list loop is also no longer
      necessary as there is no deletion within that specific loop.
      Suggested-by: default avatarPaolo Abeni <pabeni@redhat.com>
      Signed-off-by: default avatarNiels Dossche <dossche.niels@gmail.com>
      Acked-by: default avatarPaolo Abeni <pabeni@redhat.com>
      Link: https://lore.kernel.org/r/20220403231523.45843-1-dossche.niels@gmail.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      51454ea4
  2. 06 Apr, 2022 27 commits
  3. 05 Apr, 2022 2 commits
  4. 03 Apr, 2022 8 commits
  5. 02 Apr, 2022 1 commit
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-for-v5.18-2022-04-02' of... · be2d3ece
      Linus Torvalds authored
      Merge tag 'perf-tools-for-v5.18-2022-04-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
      
      Pull more perf tools updates from Arnaldo Carvalho de Melo:
      
       - Avoid SEGV if core.cpus isn't set in 'perf stat'.
      
       - Stop depending on .git files for building PERF-VERSION-FILE, used in
         'perf --version', fixing some perf tools build scenarios.
      
       - Convert tracepoint.py example to python3.
      
       - Update UAPI header copies from the kernel sources: socket,
         mman-common, msr-index, KVM, i915 and cpufeatures.
      
       - Update copy of libbpf's hashmap.c.
      
       - Directly return instead of using local ret variable in
         evlist__create_syswide_maps(), found by coccinelle.
      
      * tag 'perf-tools-for-v5.18-2022-04-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
        perf python: Convert tracepoint.py example to python3
        perf evlist: Directly return instead of using local ret variable
        perf cpumap: More cpu map reuse by merge.
        perf cpumap: Add is_subset function
        perf evlist: Rename cpus to user_requested_cpus
        perf tools: Stop depending on .git files for building PERF-VERSION-FILE
        tools headers cpufeatures: Sync with the kernel sources
        tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
        tools headers UAPI: Sync linux/kvm.h with the kernel sources
        tools kvm headers arm64: Update KVM headers from the kernel sources
        tools arch x86: Sync the msr-index.h copy with the kernel sources
        tools headers UAPI: Sync asm-generic/mman-common.h with the kernel
        perf beauty: Update copy of linux/socket.h with the kernel sources
        perf tools: Update copy of libbpf's hashmap.c
        perf stat: Avoid SEGV if core.cpus isn't set
      be2d3ece