• Linus Torvalds's avatar
    Merge tag 'for-linus-unmerged' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma · 19fd08b8
    Linus Torvalds authored
    Pull rdma updates from Jason Gunthorpe:
     "Doug and I are at a conference next week so if another PR is sent I
      expect it to only be bug fixes. Parav noted yesterday that there are
      some fringe case behavior changes in his work that he would like to
      fix, and I see that Intel has a number of rc looking patches for HFI1
      they posted yesterday.
    
      Parav is again the biggest contributor by patch count with his ongoing
      work to enable container support in the RDMA stack, followed by Leon
      doing syzkaller inspired cleanups, though most of the actual fixing
      went to RC.
    
      There is one uncomfortable series here fixing the user ABI to actually
      work as intended in 32 bit mode. There are lots of notes in the commit
      messages, but the basic summary is we don't think there is an actual
      32 bit kernel user of drivers/infiniband for several good reasons.
    
      However we are seeing people want to use a 32 bit user space with 64
      bit kernel, which didn't completely work today. So in fixing it we
      required a 32 bit rxe user to upgrade their userspace. rxe users are
      still already quite rare and we think a 32 bit one is non-existing.
    
       - Fix RDMA uapi headers to actually compile in userspace and be more
         complete
    
       - Three shared with netdev pull requests from Mellanox:
    
          * 7 patches, mostly to net with 1 IB related one at the back).
            This series addresses an IRQ performance issue (patch 1),
            cleanups related to the fix for the IRQ performance problem
            (patches 2-6), and then extends the fragmented completion queue
            support that already exists in the net side of the driver to the
            ib side of the driver (patch 7).
    
          * Mostly IB, with 5 patches to net that are needed to support the
            remaining 10 patches to the IB subsystem. This series extends
            the current 'representor' framework when the mlx5 driver is in
            switchdev mode from being a netdev only construct to being a
            netdev/IB dev construct. The IB dev is limited to raw Eth queue
            pairs only, but by having an IB dev of this type attached to the
            representor for a switchdev port, it enables DPDK to work on the
            switchdev device.
    
          * All net related, but needed as infrastructure for the rdma
            driver
    
       - Updates for the hns, i40iw, bnxt_re, cxgb3, cxgb4, hns drivers
    
       - SRP performance updates
    
       - IB uverbs write path cleanup patch series from Leon
    
       - Add RDMA_CM support to ib_srpt. This is disabled by default. Users
         need to set the port for ib_srpt to listen on in configfs in order
         for it to be enabled
         (/sys/kernel/config/target/srpt/discovery_auth/rdma_cm_port)
    
       - TSO and Scatter FCS support in mlx4
    
       - Refactor of modify_qp routine to resolve problems seen while
         working on new code that is forthcoming
    
       - More refactoring and updates of RDMA CM for containers support from
         Parav
    
       - mlx5 'fine grained packet pacing', 'ipsec offload' and 'device
         memory' user API features
    
       - Infrastructure updates for the new IOCTL interface, based on
         increased usage
    
       - ABI compatibility bug fixes to fully support 32 bit userspace on 64
         bit kernel as was originally intended. See the commit messages for
         extensive details
    
       - Syzkaller bugs and code cleanups motivated by them"
    
    * tag 'for-linus-unmerged' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (199 commits)
      IB/rxe: Fix for oops in rxe_register_device on ppc64le arch
      IB/mlx5: Device memory mr registration support
      net/mlx5: Mkey creation command adjustments
      IB/mlx5: Device memory support in mlx5_ib
      net/mlx5: Query device memory capabilities
      IB/uverbs: Add device memory registration ioctl support
      IB/uverbs: Add alloc/free dm uverbs ioctl support
      IB/uverbs: Add device memory capabilities reporting
      IB/uverbs: Expose device memory capabilities to user
      RDMA/qedr: Fix wmb usage in qedr
      IB/rxe: Removed GID add/del dummy routines
      RDMA/qedr: Zero stack memory before copying to user space
      IB/mlx5: Add ability to hash by IPSEC_SPI when creating a TIR
      IB/mlx5: Add information for querying IPsec capabilities
      IB/mlx5: Add IPsec support for egress and ingress
      {net,IB}/mlx5: Add ipsec helper
      IB/mlx5: Add modify_flow_action_esp verb
      IB/mlx5: Add implementation for create and destroy action_xfrm
      IB/uverbs: Introduce ESP steering match filter
      IB/uverbs: Add modify ESP flow_action
      ...
    19fd08b8
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