1. 04 Aug, 2016 1 commit
    • Moni Shoua's avatar
      Soft RoCE driver · 8700e3e7
      Moni Shoua authored
      Soft RoCE (RXE) - The software RoCE driver
      
      ib_rxe implements the RDMA transport and registers to the RDMA core
      device as a kernel verbs provider. It also implements the packet IO
      layer. On the other hand ib_rxe registers to the Linux netdev stack
      as a udp encapsulating protocol, in that case RDMA, for sending and
      receiving packets over any Ethernet device.  This yields a RDMA
      transport over the UDP/Ethernet network layer forming a RoCEv2
      compatible device.
      
      The configuration procedure of the Soft RoCE drivers requires
      binding to any existing Ethernet network device. This is done with
      /sys interface.
      
      A userspace Soft RoCE library (librxe) provides user applications
      the ability to run with Soft RoCE devices.  The use of rxe verbs ins
      user space requires the inclusion of librxe as a device specifics
      plug-in to libibverbs. librxe is packaged separately.
      
      Architecture:
      
           +-----------------------------------------------------------+
           |                          Application                      |
           +-----------------------------------------------------------+
                                  +-----------------------------------+
                                  |             libibverbs            |
      User                        +-----------------------------------+
                                  +----------------+ +----------------+
                                  | librxe         | | HW RoCE lib    |
                                  +----------------+ +----------------+
      +---------------------------------------------------------------+
           +--------------+                           +------------+
           | Sockets      |                           | RDMA ULP   |
           +--------------+                           +------------+
           +--------------+                  +---------------------+
           | TCP/IP       |                  | ib_core             |
           +--------------+                  +---------------------+
                                   +------------+ +----------------+
      Kernel                       | ib_rxe     | | HW RoCE driver |
                                   +------------+ +----------------+
           +------------------------------------+
           | NIC driver                         |
           +------------------------------------+
      
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           +-----------------------------------------------------------+
           |                          Application                      |
           +-----------------------------------------------------------+
                                  +-----------------------------------+
                                  |             libibverbs            |
      User                        +-----------------------------------+
                                  +----------------+ +----------------+
                                  | librxe         | | HW RoCE lib    |
                                  +----------------+ +----------------+
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           +--------------+                           +------------+
           | Sockets      |                           | RDMA ULP   |
           +--------------+                           +------------+
           +--------------+                  +---------------------+
           | TCP/IP       |                  | ib_core             |
           +--------------+                  +---------------------+
                                   +------------+ +----------------+
      Kernel                       | ib_rxe     | | HW RoCE driver |
                                   +------------+ +----------------+
           +------------------------------------+
           | NIC driver                         |
           +------------------------------------+
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      
      Soft RoCE resources:
      
      [1[ https://github.com/SoftRoCE/librxe-dev librxe - source code in
      Github
      [2] https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home - Soft RoCE
      Wiki page
      [3] https://github.com/SoftRoCE/librxe-dev - Soft RoCE userspace library
      Signed-off-by: default avatarKamal Heib <kamalh@mellanox.com>
      Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
      Signed-off-by: default avatarMoni Shoua <monis@mellanox.com>
      Reviewed-by: default avatarHaggai Eran <haggaie@mellanox.com>
      Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      8700e3e7
  2. 20 Jun, 2016 1 commit
  3. 19 Jun, 2016 9 commits
    • Linus Torvalds's avatar
      Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs · c3695331
      Linus Torvalds authored
      Pull UDF fixes and a reiserfs fix from Jan Kara:
       "A couple of udf fixes (most notably a bug in parsing UDF partitions
        which led to inability to mount recent Windows installation media) and
        a reiserfs fix for handling kstrdup failure"
      
      * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
        reiserfs: check kstrdup failure
        udf: Use correct partition reference number for metadata
        udf: Use IS_ERR when loading metadata mirror file entry
        udf: Don't BUG on missing metadata partition descriptor
      c3695331
    • Linus Torvalds's avatar
      Merge tag 'dmaengine-fix-4.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma · 9af1f5d8
      Linus Torvalds authored
      Pull dmaengine fixes from Vinod Koul:
       "Some fixes has piled up, so time to send them upstream.
      
        These fixes include:
         - at_xdmac fixes for residue and other stuff
         - update MAINTAINERS for dma dt bindings
         - mv_xor fix for incorrect offset"
      
      * tag 'dmaengine-fix-4.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
        dmaengine: mv_xor: Fix incorrect offset in dma_map_page()
        dmaengine: at_xdmac: double FIFO flush needed to compute residue
        dmaengine: at_xdmac: fix residue corruption
        dmaengine: at_xdmac: align descriptors on 64 bits
        MAINTAINERS: Add file patterns for dma device tree bindings
      9af1f5d8
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 049a40c0
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "Another batch of fixes for ARM SoC platforms.  Most are smaller fixes.
      
        Two areas that are worth pointing out are:
      
         - OMAP had a handful of changes to voltage specs that caused a bit of
           churn, most of volume of change in this branch is due to this.
      
         - There are a couple of _rcuidle fixes from Paul that touch common
           code and came in through the OMAP tree since they were the ones who
           saw the problems.
      
       The rest is smaller changes across a handful of platforms"
      
      * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (36 commits)
        ARM: dts: STi: stih407-family: Disable reserved-memory co-processor nodes
        ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218
        ARM: OMAP2+: timer: add probe for clocksources
        ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ
        memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
        arm: Use _rcuidle for smp_cross_call() tracepoints
        MAINTAINERS: Add myself as reviewer of ARM FSL/NXP
        ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret
        ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret
        ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON
        ARM: imx6ul: Fix Micrel PHY mask
        ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX
        ARM: dts: DRA74x: fix DSS PLL2 addresses
        ARM: OMAP2: Enable Errata 430973 for OMAP3
        ARM: dts: socfpga: Add missing PHY phandle
        ARM: dts: exynos: Fix port nodes names for Exynos5420 Peach Pit board
        ARM: dts: exynos: Fix port nodes names for Exynos5250 Snow board
        ARM: dts: sun6i: yones-toptech-bs1078-v2: Drop constraints on dc1sw regulator
        ARM: dts: sun6i: primo81: Drop constraints on dc1sw regulator
        ARM: dts: sunxi: Add OLinuXino Lime2 eMMC to the Makefile
        ...
      049a40c0
    • Olof Johansson's avatar
      Merge tag 'gpmc-omap-fixes-for-v4.7' of https://github.com/rogerq/linux into fixes · 8fd09767
      Olof Johansson authored
      OMAP-GPMC: Fixes for for v4.7-rc cycle:
      
      - Fix omap gpmc EXTRADELAY timing. The DT provided timings
      were wrongly used causing devices requiring extra delay timing
      to fail.
      
      * tag 'gpmc-omap-fixes-for-v4.7' of https://github.com/rogerq/linux:
        memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
        + Linux 4.7-rc3
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      8fd09767
    • Olof Johansson's avatar
      Merge tag 'omap-for-v4.7/fixes-powedomain' of... · 58935f24
      Olof Johansson authored
      Merge tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
      
      Fixes for omaps for v4.7-rc cycle:
      
      - Fix dra7 for hardware issues limiting L4Per and L3init power domains
        to on state. Without this the devices may not work correctly after
        some time of use because of asymmetric aging. And related to this,
        let's also remove the unusable states.
      
      - Always select omap interconnect for am43x as otherwise the am43x
        only configurations will not boot properly. This can happen easily
        for any product kernels that leave out other SoCs to save memory.
      
      - Fix DSS PLL2 addresses that have gone unused for now
      
      - Select erratum 430973 for omap3, this is now safe to do and can
        save quite a bit of debugging time for people who may have left
        it out.
      
      * tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
        ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret
        ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret
        ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON
        ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX
        ARM: dts: DRA74x: fix DSS PLL2 addresses
        ARM: OMAP2: Enable Errata 430973 for OMAP3
        + Linux 4.7-rc2
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      58935f24
    • Olof Johansson's avatar
      Merge tag 'fixes-rcu-fiq-signed' of... · 9503427e
      Olof Johansson authored
      Merge tag 'fixes-rcu-fiq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
      
      Fixes for omaps for v4.7-rc cycle:
      
      - Two boot warning fixes from the RCU tree that should have gotten
        merged several weeks ago already but did not because of issues
        with who merges them. Paul has now split the RCU warning fixes into
        sets for various maintainers.
      
      - Fix ams-delta FIQ regression caused by omap1 sparse IRQ changes
      
      - Fix PM for omap3 boards using timer12 and gptimer, like the
        original beagleboard
      
      - Fix hangs on am437x-sk-evm by lowering the I2C bus speed
      
      * tag 'fixes-rcu-fiq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
        ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218
        ARM: OMAP2+: timer: add probe for clocksources
        ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ
        arm: Use _rcuidle for smp_cross_call() tracepoints
        arm: Use _rcuidle tracepoint to allow use from idle
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      9503427e
    • Lee Jones's avatar
      ARM: dts: STi: stih407-family: Disable reserved-memory co-processor nodes · 0e289e53
      Lee Jones authored
      This patch fixes a non-booting issue in Mainline.
      
      When booting with a compressed kernel, we need to be careful how we
      populate memory close to DDR start.  AUTO_ZRELADDR is enabled by default
      in multi-arch enabled configurations, which place some restrictions on
      where the kernel is placed and where it will be uncompressed to on boot.
      
      AUTO_ZRELADDR takes the decompressor code's start address and masks out
      the bottom 28 bits to obtain an address to uncompress the kernel to
      (thus a load address of 0x42000000 means that the kernel will be
      uncompressed to 0x40000000 i.e. DDR START on this platform).
      
      Even changing the load address to after the co-processor's shared memory
      won't render a booting platform, since the AUTO_ZRELADDR algorithm still
      ensures the kernel is uncompressed into memory shared with the first
      co-processor (0x40000000).
      
      Another option would be to move loading to 0x4A000000, since this will
      mean the decompressor will decompress the kernel to 0x48000000. However,
      this would mean a large chunk (0x44000000 => 0x48000000 (64MB)) of
      memory would essentially be wasted for no good reason.
      
      Until we can work with ST to find a suitable memory location to
      relocate co-processor shared memory, let's disable the shared memory
      nodes.  This will ensure a working platform in the mean time.
      
      NB: The more observant of you will notice that we're leaving the DMU
      shared memory node enabled; this is because a) it is the only one in
      active use at the time of this writing and b) it is not affected by
      the current default behaviour which is causing issues.
      
      Fixes: fe135c63 (ARM: dts: STiH407: Move over to using the 'reserved-memory' API for obtaining DMA memory)
      Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
      Reviewed-by Peter Griffin <peter.griffin@linaro.org>
      Signed-off-by: default avatarMaxime Coquelin <maxime.coquelin@st.com>
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      0e289e53
    • Olof Johansson's avatar
      Merge tag 'imx-fixes-4.7' of... · 7752b0d5
      Olof Johansson authored
      Merge tag 'imx-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
      
      The i.MX fixes for 4.7:
       - Correct Micrel PHY mask to fix the issue that i.MX6UL ethernet works
         in U-Boot but not in kernel.
      
      * tag 'imx-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
        ARM: imx6ul: Fix Micrel PHY mask
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      7752b0d5
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm · c141afd1
      Linus Torvalds authored
      Pull ARM fixes from Russell King:
       "A couple of fixes for pmd_mknotpresent()/pmd_present() for LPAE
        systems"
      
      * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
        ARM: 8579/1: mm: Fix definition of pmd_mknotpresent
        ARM: 8578/1: mm: ensure pmd_present only checks the valid bit
      c141afd1
  4. 18 Jun, 2016 15 commits
  5. 17 Jun, 2016 14 commits