1. 05 Jan, 2018 8 commits
    • Jesper Dangaard Brouer's avatar
      nfp: setup xdp_rxq_info · 7f1c684a
      Jesper Dangaard Brouer authored
      Driver hook points for xdp_rxq_info:
       * reg  : nfp_net_rx_ring_alloc
       * unreg: nfp_net_rx_ring_free
      
      In struct nfp_net_rx_ring moved member @size into a hole on 64-bit.
      Thus, the size remaines the same after adding member @xdp_rxq.
      
      Cc: oss-drivers@netronome.com
      Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
      Cc: Simon Horman <simon.horman@netronome.com>
      Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      7f1c684a
    • Jesper Dangaard Brouer's avatar
      bnxt_en: setup xdp_rxq_info · 96a8604f
      Jesper Dangaard Brouer authored
      Driver hook points for xdp_rxq_info:
       * reg  : bnxt_alloc_rx_rings
       * unreg: bnxt_free_rx_rings
      
      This driver should be updated to re-register when changing
      allocation mode of RX rings.
      
      Tested on actual hardware.
      
      Cc: Andy Gospodarek <andy@greyhouse.net>
      Cc: Michael Chan <michael.chan@broadcom.com>
      Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      96a8604f
    • Jesper Dangaard Brouer's avatar
      mlx4: setup xdp_rxq_info · ae75415d
      Jesper Dangaard Brouer authored
      Driver hook points for xdp_rxq_info:
       * reg  : mlx4_en_create_rx_ring
       * unreg: mlx4_en_destroy_rx_ring
      
      Tested on actual hardware.
      
      Cc: Tariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Reviewed-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      ae75415d
    • Jesper Dangaard Brouer's avatar
      xdp/qede: setup xdp_rxq_info and intro xdp_rxq_info_is_reg · c0124f32
      Jesper Dangaard Brouer authored
      The driver code qede_free_fp_array() depend on kfree() can be called
      with a NULL pointer. This stems from the qede_alloc_fp_array()
      function which either (kz)alloc memory for fp->txq or fp->rxq.
      This also simplifies error handling code in case of memory allocation
      failures, but xdp_rxq_info_unreg need to know the difference.
      
      Introduce xdp_rxq_info_is_reg() to handle if a memory allocation fails
      and detect this is the failure path by seeing that xdp_rxq_info was
      not registred yet, which first happens after successful alloaction in
      qede_init_fp().
      
      Driver hook points for xdp_rxq_info:
       * reg  : qede_init_fp
       * unreg: qede_free_fp_array
      
      Tested on actual hardware with samples/bpf program.
      
      V2: Driver have no proper error path for failed XDP RX-queue info reg, as
      qede_init_fp() is a void function.
      
      Cc: everest-linux-l2@cavium.com
      Cc: Ariel Elior <Ariel.Elior@cavium.com>
      Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      c0124f32
    • Jesper Dangaard Brouer's avatar
      ixgbe: setup xdp_rxq_info · 99ffc5ad
      Jesper Dangaard Brouer authored
      Driver hook points for xdp_rxq_info:
       * reg  : ixgbe_setup_rx_resources()
       * unreg: ixgbe_free_rx_resources()
      
      Tested on actual hardware.
      
      V2: Fix ixgbe_set_ringparam, clear xdp_rxq_info in temp_ring
      
      Cc: intel-wired-lan@lists.osuosl.org
      Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
      Cc: Alexander Duyck <alexander.duyck@gmail.com>
      Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Acked-by: default avatarJohn Fastabend <john.fastabend@gmail.com>
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      99ffc5ad
    • Jesper Dangaard Brouer's avatar
      i40e: setup xdp_rxq_info · 87128824
      Jesper Dangaard Brouer authored
      The i40e driver has a special "FDIR" RX-ring (I40E_VSI_FDIR) which is
      a sideband channel for configuring/updating the flow director tables.
      This (i40e_vsi_)type does not invoke XDP-ebpf code.
      
      As suggested by Björn (V2): Instead of marking this I40E_VSI_FDIR RX-ring
      a special case, reverse the logic and only select RX-rings of type
      I40E_VSI_MAIN to register xdp_rxq_info's for.
      
      Driver hook points for xdp_rxq_info:
       * reg  : i40e_setup_rx_descriptors (via i40e_vsi_setup_rx_resources)
       * unreg: i40e_free_rx_resources    (via i40e_vsi_free_rx_resources)
      
      Tested on actual hardware with samples/bpf program.
      
      V2: Fixed bug in i40e_set_ringparam (memset zero) + match on I40E_VSI_MAIN.
      V4: Update patch desc that got out-of-sync with code.
      
      Cc: intel-wired-lan@lists.osuosl.org
      Cc: Björn Töpel <bjorn.topel@intel.com>
      Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
      Cc: Paul Menzel <pmenzel@molgen.mpg.de>
      Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Reviewed-by: default avatarPaul Menzel <pmenzel@molgen.mpg.de>
      Acked-by: default avatarJohn Fastabend <john.fastabend@gmail.com>
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      87128824
    • Jesper Dangaard Brouer's avatar
      xdp/mlx5: setup xdp_rxq_info · 0ddf5432
      Jesper Dangaard Brouer authored
      The mlx5 driver have a special drop-RQ queue (one per interface) that
      simply drops all incoming traffic. It helps driver keep other HW
      objects (flow steering) alive upon down/up operations.  It is
      temporarily pointed by flow steering objects during the interface
      setup, and when interface is down. It lacks many fields that are set
      in a regular RQ (for example its state is never switched to
      MLX5_RQC_STATE_RDY). (Thanks to Tariq Toukan for explanation).
      
      The XDP RX-queue info for this drop-RQ marked as unused, which
      allow us to use the same takedown/free code path as other RX-queues.
      
      Driver hook points for xdp_rxq_info:
       * reg   : mlx5e_alloc_rq()
       * unused: mlx5e_alloc_drop_rq()
       * unreg : mlx5e_free_rq()
      
      Tested on actual hardware with samples/bpf program
      
      Cc: Saeed Mahameed <saeedm@mellanox.com>
      Cc: Matan Barak <matanb@mellanox.com>
      Cc: Tariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      0ddf5432
    • Jesper Dangaard Brouer's avatar
      xdp: base API for new XDP rx-queue info concept · aecd67b6
      Jesper Dangaard Brouer authored
      This patch only introduce the core data structures and API functions.
      All XDP enabled drivers must use the API before this info can used.
      
      There is a need for XDP to know more about the RX-queue a given XDP
      frames have arrived on.  For both the XDP bpf-prog and kernel side.
      
      Instead of extending xdp_buff each time new info is needed, the patch
      creates a separate read-mostly struct xdp_rxq_info, that contains this
      info.  We stress this data/cache-line is for read-only info.  This is
      NOT for dynamic per packet info, use the data_meta for such use-cases.
      
      The performance advantage is this info can be setup at RX-ring init
      time, instead of updating N-members in xdp_buff.  A possible (driver
      level) micro optimization is that xdp_buff->rxq assignment could be
      done once per XDP/NAPI loop.  The extra pointer deref only happens for
      program needing access to this info (thus, no slowdown to existing
      use-cases).
      Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      aecd67b6
  2. 04 Jan, 2018 6 commits
  3. 31 Dec, 2017 10 commits
  4. 30 Dec, 2017 2 commits
  5. 29 Dec, 2017 7 commits
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 6bb88247
      David S. Miller authored
      net/ipv6/ip6_gre.c is a case of parallel adds.
      
      include/trace/events/tcp.h is a little bit more tricky.  The removal
      of in-trace-macro ifdefs in 'net' paralleled with moving
      show_tcp_state_name and friends over to include/trace/events/sock.h
      in 'net-next'.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6bb88247
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 2758b3e3
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) IPv6 gre tunnels end up with different default features enabled
          depending upon whether netlink or ioctls are used to bring them up.
          Fix from Alexey Kodanev.
      
       2) Fix read past end of user control message in RDS< from Avinash
          Repaka.
      
       3) Missing RCU barrier in mini qdisc code, from Cong Wang.
      
       4) Missing policy put when reusing per-cpu route entries, from Florian
          Westphal.
      
       5) Handle nested PCI errors properly in bnx2x driver, from Guilherme G.
          Piccoli.
      
       6) Run nested transport mode IPSEC packets via tasklet, from Herbert
          Xu.
      
       7) Fix handling poll() for stream sockets in tipc, from Parthasarathy
          Bhuvaragan.
      
       8) Fix two stack-out-of-bounds issues in IPSEC, from Steffen Klassert.
      
       9) Another zerocopy ubuf handling fix, from Willem de Bruijn.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
        strparser: Call sock_owned_by_user_nocheck
        sock: Add sock_owned_by_user_nocheck
        skbuff: in skb_copy_ubufs unclone before releasing zerocopy
        tipc: fix hanging poll() for stream sockets
        sctp: Replace use of sockets_allocated with specified macro.
        bnx2x: Improve reliability in case of nested PCI errors
        tg3: Enable PHY reset in MTU change path for 5720
        tg3: Add workaround to restrict 5762 MRRS to 2048
        tg3: Update copyright
        net: fec: unmap the xmit buffer that are not transferred by DMA
        tipc: fix tipc_mon_delete() oops in tipc_enable_bearer() error path
        tipc: error path leak fixes in tipc_enable_bearer()
        RDS: Check cmsg_len before dereferencing CMSG_DATA
        tcp: Avoid preprocessor directives in tracepoint macro args
        tipc: fix memory leak of group member when peer node is lost
        net: sched: fix possible null pointer deref in tcf_block_put
        tipc: base group replicast ack counter on number of actual receivers
        net_sched: fix a missing rcu barrier in mini_qdisc_pair_swap()
        net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround
        ip6_gre: fix device features for ioctl setup
        ...
      2758b3e3
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-for-v4.15-rc6' of git://people.freedesktop.org/~airlied/linux · fd84b751
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "nouveau and i915 regression fixes"
      
      * tag 'drm-fixes-for-v4.15-rc6' of git://people.freedesktop.org/~airlied/linux:
        drm/nouveau: fix race when adding delayed work items
        i915: Reject CCS modifiers for pipe C on Geminilake
        drm/i915/gvt: Fix pipe A enable as default for vgpu
      fd84b751
    • Linus Torvalds's avatar
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · c0208a33
      Linus Torvalds authored
      Pull clk fix from Stephen Boyd:
       "One more fix for the runtime PM clk patches. We're calling a runtime
        PM API that may schedule from somewhere that we can't do that. We
        change to the async version of pm_runtime_put() to fix it"
      
      * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
        clk: use atomic runtime pm api in clk_core_is_enabled
      c0208a33
    • Linus Torvalds's avatar
      Merge tag 'led_fixes_for_4.15-rc6' of... · 4f2382f3
      Linus Torvalds authored
      Merge tag 'led_fixes_for_4.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
      
      Pull LED fix from Jacek Anaszewski:
       "A single LED fix for brightness setting when delay_off is 0"
      
      * tag 'led_fixes_for_4.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
        led: core: Fix brightness setting when setting delay_off=0
      4f2382f3
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma · 19286e4a
      Linus Torvalds authored
      Pull rdma fixes from Jason Gunthorpe:
       "This is the next batch of for-rc patches from RDMA. It includes the
        fix for the ipoib regression I mentioned last time, and the result of
        a fairly major debugging effort to get iser working reliably on cxgb4
        hardware - it turns out the cxgb4 driver was not handling QP error
        flushing properly causing iser to fail.
      
         - cxgb4 fix for an iser testing failure as debugged by Steve and
           Sagi. The problem was a driver bug in the handling of shutting down
           a QP.
      
         - Various vmw_pvrdma fixes for bogus WARN_ON, missed resource free on
           error unwind and a use after free bug
      
         - Improper congestion counter values on mlx5 when link aggregation is
           enabled
      
         - ipoib lockdep regression introduced in this merge window
      
         - hfi1 regression supporting the device in a VM introduced in a
           recent patch
      
         - Typo that breaks future uAPI compatibility in the verbs core
      
         - More SELinux related oops fixing
      
         - Fix an oops during error unwind in mlx5"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
        IB/mlx5: Fix mlx5_ib_alloc_mr error flow
        IB/core: Verify that QP is security enabled in create and destroy
        IB/uverbs: Fix command checking as part of ib_uverbs_ex_modify_qp()
        IB/mlx5: Serialize access to the VMA list
        IB/hfi: Only read capability registers if the capability exists
        IB/ipoib: Fix lockdep issue found on ipoib_ib_dev_heavy_flush
        IB/mlx5: Fix congestion counters in LAG mode
        RDMA/vmw_pvrdma: Avoid use after free due to QP/CQ/SRQ destroy
        RDMA/vmw_pvrdma: Use refcount_dec_and_test to avoid warning
        RDMA/vmw_pvrdma: Call ib_umem_release on destroy QP path
        iw_cxgb4: when flushing, complete all wrs in a chain
        iw_cxgb4: reflect the original WR opcode in drain cqes
        iw_cxgb4: Only validate the MSN for successful completions
      19286e4a
    • David S. Miller's avatar
      Merge tag 'mlx5-shared-4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux · d367341b
      David S. Miller authored
      Saeed Mahameed says:
      
      ====================
      Mellanox, mlx5 E-Switch updates 2017-12-19
      
      This series includes updates for mlx5 E-Switch infrastructures,
      to be merged into net-next and rdma-next trees.
      
      Mark's patches provide E-Switch refactoring that generalize the mlx5
      E-Switch vf representors interfaces and data structures. The serious is
      mainly focused on moving ethernet (netdev) specific representors logic out
      of E-Switch (eswitch.c) into mlx5e representor module (en_rep.c), which
      provides better separation and allows future support for other types of vf
      representors (e.g. RDMA).
      
      Gal's patches at the end of this serious, provide a simple syntax fix and
      two other patches that handles vport ingress/egress ACL steering name
      spaces to be aligned with the Firmware/Hardware specs.
      
      V1->V2:
       - Addressed coding style comments in patches #1 and #7
       - The series is still based on rc4, as now I see net-next is also @rc4.
      
      V2->V3:
       - Fixed compilation warning, reported by Dave.
      
      Please pull and let me know if there's any problem.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d367341b
  6. 28 Dec, 2017 7 commits