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Date: Fri, 13 Jan 2017 18:27:48 +0000
From: "Estrin, Alex" <alex.estrin@...el.com>
To: Bart Van Assche <bart.vanassche@...disk.com>,
Doug Ledford <dledford@...hat.com>
CC: "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Subject: RE: [PATCH v2 00/26] IB: Optimize DMA mapping
Hi Bart,
This series applied to 4.10-rc3 breaks hfi1 sdma engines.
[ 34.712343] hfi1 0000:82:00.0: hfi1_0: SDMA (0) engine error: 0x21 state s50_HwHaltWait
[ 34.722752] hfi1 0000:82:00.0: hfi1_0: SDMA (0) descq_head: 0 descq_tail: 3 freecnt: 2044 FLE 0
[ 34.733933] hfi1 0000:82:00.0: hfi1_0: SDMA sdmadesc[0]: flags:--F- addr:0x00008808248c8000 gen:0 len:36 bytes
[ 34.746595] hfi1 0000:82:00.0: hfi1_0: desc0:0x80248808248c8000 desc1 0x0000000000000000
[ 34.757218] hfi1 0000:82:00.0: hfi1_0: aidx: 0 amode: 0 alen: 0
[ 34.765448] hfi1 0000:82:00.0: hfi1_0: SDMA sdmadesc[1]: flags:---- addr:0x0000880829fd5000 gen:0 len:24 bytes
[ 34.778184] hfi1 0000:82:00.0: hfi1_0: desc0:0x0018880829fd5000 desc1 0x0000000000000000
[ 34.788941] hfi1 0000:82:00.0: hfi1_0: SDMA sdmadesc[2]: flags:-H-L addr:0x0000880829fd5018 gen:0 len:440 bytes
[ 34.801849] hfi1 0000:82:00.0: hfi1_0: desc0:0x41b8880829fd5018 desc1 0x0000000000000001
...etc
BTW, what was the base for this series, as 19/26 did not apply cleanly to 4.10-rc3?
Thanks,
Alex.
> -----Original Message-----
> From: linux-rdma-owner@...r.kernel.org [mailto:linux-rdma-
> owner@...r.kernel.org] On Behalf Of Bart Van Assche
> Sent: Thursday, January 12, 2017 2:07 PM
> To: Doug Ledford <dledford@...hat.com>
> Cc: linux-rdma@...r.kernel.org; linux-kernel@...r.kernel.org; Greg Kroah-Hartman
> <gregkh@...uxfoundation.org>; Bart Van Assche <bart.vanassche@...disk.com>
> Subject: [PATCH v2 00/26] IB: Optimize DMA mapping
>
> Hello Doug,
>
> As you know there are two sets of DMA mapping operations in the Linux
> kernel:
> - One set of DMA mapping operations that is used by most drivers.
> - Another set of DMA mapping operations that is only used by the RDMA
> drivers.
> Having two sets of DMA mapping operations is not only a source of
> confusion but also a source of unnecessary overhead. The DMA mapping
> operations are in the hot path so it is important that the overhead
> of these operations is as low as possible. Hence this patch series
> that converts the RDMA code to the standard DMA mapping API and
> thereby eliminates the if (dev->dma_ops) test from the hot path. An
> additional benefit is that the size of HW and SW drivers that do not
> use DMA is reduced by switching to dma_virt_ops.
>
> The changes compared to version 1 of this patch series are:
> - Patch "Move dma_ops from archdata into struct device" has been
> split into three patches.
> - Patch "treewide: Inline ib_dma_map_*() functions" has been split
> into 15 patches (one per driver).
> - A patch has been added that builds dma_noop_ops only for the
> architectures that need it.
> - The new dma_virt_ops is only built if it is used by a driver.
> - In these last 15 patches indentation has been adjusted to keep
> the arguments aligned with the opening parenthesis.
>
> Bart Van Assche (26):
> treewide: Constify most dma_map_ops structures
> treewide: Move dma_ops from struct dev_archdata into struct device
> treewide: Consolidate set_dma_ops() implementations
> treewide: Consolidate get_dma_ops() implementations
> lib/dma-noop: Clarify a comment
> lib/dma-noop: Only build dma_noop_ops for m32r and s390
> lib/dma-virt: Add dma_virt_ops
> IB/hf1: Remove DMA mapping code
> IB/qib: Remove DMA mapping code
> IB: Use dma_virt_ops instead of duplicating it
> RDS: IB: Remove an unused structure member
> IB: Convert ib_dma_*_coherent() argument type from u64 into dma_addr_t
> IB/core: Inline ib_dma_map_*() functions
> IB/mlx4: Inline ib_dma_map_*() functions
> IB/mlx5: Inline ib_dma_map_*() functions
> IB/IPoIB: Inline ib_dma_map_*() functions
> IB/iser: Inline ib_dma_map_*() functions
> IB/isert: Inline ib_dma_map_*() functions
> IB/srp: Inline ib_dma_map_*() functions
> IB/srpt: Inline ib_dma_map_*() functions
> staging/lustre: Inline ib_dma_map_*() functions
> nvme-rdma: Inline ib_dma_map_*() functions
> net/9p: Inline ib_dma_map_*() functions
> net/rds: Inline ib_dma_map_*() functions
> xprtrdma: Inline ib_dma_map_*() functions
> IB/core: Remove ib_dma_map_*() functions
>
> arch/alpha/include/asm/dma-mapping.h | 4 +-
> arch/alpha/kernel/pci-noop.c | 4 +-
> arch/alpha/kernel/pci_iommu.c | 4 +-
> arch/arc/include/asm/dma-mapping.h | 4 +-
> arch/arc/mm/dma.c | 2 +-
> arch/arm/common/dmabounce.c | 2 +-
> arch/arm/include/asm/device.h | 1 -
> arch/arm/include/asm/dma-mapping.h | 20 +-
> arch/arm/mm/dma-mapping.c | 22 +-
> arch/arm/xen/mm.c | 4 +-
> arch/arm64/include/asm/device.h | 1 -
> arch/arm64/include/asm/dma-mapping.h | 12 +-
> arch/arm64/mm/dma-mapping.c | 14 +-
> arch/avr32/include/asm/dma-mapping.h | 4 +-
> arch/avr32/mm/dma-coherent.c | 2 +-
> arch/blackfin/include/asm/dma-mapping.h | 4 +-
> arch/blackfin/kernel/dma-mapping.c | 2 +-
> arch/c6x/include/asm/dma-mapping.h | 4 +-
> arch/c6x/kernel/dma.c | 2 +-
> arch/cris/arch-v32/drivers/pci/dma.c | 2 +-
> arch/cris/include/asm/dma-mapping.h | 6 +-
> arch/frv/include/asm/dma-mapping.h | 4 +-
> arch/frv/mb93090-mb00/pci-dma-nommu.c | 2 +-
> arch/frv/mb93090-mb00/pci-dma.c | 2 +-
> arch/h8300/include/asm/dma-mapping.h | 4 +-
> arch/h8300/kernel/dma.c | 2 +-
> arch/hexagon/include/asm/dma-mapping.h | 7 +-
> arch/hexagon/kernel/dma.c | 4 +-
> arch/ia64/hp/common/hwsw_iommu.c | 4 +-
> arch/ia64/hp/common/sba_iommu.c | 4 +-
> arch/ia64/include/asm/dma-mapping.h | 7 +-
> arch/ia64/include/asm/machvec.h | 4 +-
> arch/ia64/kernel/dma-mapping.c | 4 +-
> arch/ia64/kernel/pci-dma.c | 10 +-
> arch/ia64/kernel/pci-swiotlb.c | 2 +-
> arch/m32r/Kconfig | 1 +
> arch/m32r/include/asm/device.h | 1 -
> arch/m32r/include/asm/dma-mapping.h | 4 +-
> arch/m68k/include/asm/dma-mapping.h | 4 +-
> arch/m68k/kernel/dma.c | 2 +-
> arch/metag/include/asm/dma-mapping.h | 4 +-
> arch/metag/kernel/dma.c | 2 +-
> arch/microblaze/include/asm/dma-mapping.h | 4 +-
> arch/microblaze/kernel/dma.c | 2 +-
> arch/mips/cavium-octeon/dma-octeon.c | 4 +-
> arch/mips/include/asm/device.h | 5 -
> arch/mips/include/asm/dma-mapping.h | 9 +-
> .../include/asm/mach-cavium-octeon/dma-coherence.h | 2 +-
> arch/mips/include/asm/netlogic/common.h | 2 +-
> arch/mips/loongson64/common/dma-swiotlb.c | 2 +-
> arch/mips/mm/dma-default.c | 4 +-
> arch/mips/netlogic/common/nlm-dma.c | 2 +-
> arch/mips/pci/pci-octeon.c | 2 +-
> arch/mn10300/include/asm/dma-mapping.h | 4 +-
> arch/mn10300/mm/dma-alloc.c | 2 +-
> arch/nios2/include/asm/dma-mapping.h | 4 +-
> arch/nios2/mm/dma-mapping.c | 2 +-
> arch/openrisc/include/asm/dma-mapping.h | 4 +-
> arch/openrisc/kernel/dma.c | 2 +-
> arch/parisc/include/asm/dma-mapping.h | 8 +-
> arch/parisc/kernel/drivers.c | 2 +-
> arch/parisc/kernel/pci-dma.c | 4 +-
> arch/powerpc/include/asm/device.h | 4 -
> arch/powerpc/include/asm/dma-mapping.h | 14 +-
> arch/powerpc/include/asm/pci.h | 4 +-
> arch/powerpc/include/asm/ps3.h | 2 +-
> arch/powerpc/include/asm/swiotlb.h | 2 +-
> arch/powerpc/kernel/dma-swiotlb.c | 2 +-
> arch/powerpc/kernel/dma.c | 8 +-
> arch/powerpc/kernel/pci-common.c | 6 +-
> arch/powerpc/platforms/cell/iommu.c | 6 +-
> arch/powerpc/platforms/pasemi/iommu.c | 2 +-
> arch/powerpc/platforms/pasemi/setup.c | 2 +-
> arch/powerpc/platforms/powernv/npu-dma.c | 2 +-
> arch/powerpc/platforms/ps3/system-bus.c | 8 +-
> arch/powerpc/platforms/pseries/ibmebus.c | 4 +-
> arch/powerpc/platforms/pseries/vio.c | 2 +-
> arch/s390/Kconfig | 1 +
> arch/s390/include/asm/device.h | 1 -
> arch/s390/include/asm/dma-mapping.h | 6 +-
> arch/s390/pci/pci.c | 2 +-
> arch/s390/pci/pci_dma.c | 2 +-
> arch/sh/include/asm/dma-mapping.h | 4 +-
> arch/sh/kernel/dma-nommu.c | 2 +-
> arch/sh/mm/consistent.c | 2 +-
> arch/sparc/include/asm/dma-mapping.h | 10 +-
> arch/sparc/kernel/iommu.c | 4 +-
> arch/sparc/kernel/ioport.c | 8 +-
> arch/sparc/kernel/pci_sun4v.c | 2 +-
> arch/tile/include/asm/device.h | 3 -
> arch/tile/include/asm/dma-mapping.h | 20 +-
> arch/tile/kernel/pci-dma.c | 24 +-
> arch/unicore32/include/asm/dma-mapping.h | 4 +-
> arch/unicore32/mm/dma-swiotlb.c | 2 +-
> arch/x86/include/asm/device.h | 5 +-
> arch/x86/include/asm/dma-mapping.h | 11 +-
> arch/x86/include/asm/iommu.h | 2 +-
> arch/x86/kernel/amd_gart_64.c | 2 +-
> arch/x86/kernel/pci-calgary_64.c | 6 +-
> arch/x86/kernel/pci-dma.c | 4 +-
> arch/x86/kernel/pci-nommu.c | 2 +-
> arch/x86/kernel/pci-swiotlb.c | 2 +-
> arch/x86/pci/common.c | 2 +-
> arch/x86/pci/sta2x11-fixup.c | 10 +-
> arch/x86/xen/pci-swiotlb-xen.c | 2 +-
> arch/xtensa/include/asm/device.h | 4 -
> arch/xtensa/include/asm/dma-mapping.h | 9 +-
> arch/xtensa/kernel/pci-dma.c | 2 +-
> drivers/infiniband/core/mad.c | 79 +++---
> drivers/infiniband/core/rw.c | 30 +-
> drivers/infiniband/core/umem.c | 13 +-
> drivers/infiniband/core/umem_odp.c | 12 +-
> drivers/infiniband/hw/hfi1/dma.c | 183 ------------
> drivers/infiniband/hw/mlx4/cq.c | 8 +-
> drivers/infiniband/hw/mlx4/mad.c | 79 +++---
> drivers/infiniband/hw/mlx4/mr.c | 8 +-
> drivers/infiniband/hw/mlx4/qp.c | 29 +-
> drivers/infiniband/hw/mlx5/mr.c | 12 +-
> drivers/infiniband/hw/qib/qib_dma.c | 169 -----------
> drivers/infiniband/hw/qib/qib_keys.c | 5 +-
> drivers/infiniband/sw/rdmavt/Kconfig | 1 +
> drivers/infiniband/sw/rdmavt/Makefile | 2 +-
> drivers/infiniband/sw/rdmavt/dma.c | 198 -------------
> drivers/infiniband/sw/rdmavt/dma.h | 53 ----
> drivers/infiniband/sw/rdmavt/mr.c | 8 +-
> drivers/infiniband/sw/rdmavt/vt.c | 5 +-
> drivers/infiniband/sw/rdmavt/vt.h | 1 -
> drivers/infiniband/sw/rxe/Kconfig | 1 +
> drivers/infiniband/sw/rxe/Makefile | 1 -
> drivers/infiniband/sw/rxe/rxe_dma.c | 183 ------------
> drivers/infiniband/sw/rxe/rxe_loc.h | 2 -
> drivers/infiniband/sw/rxe/rxe_verbs.c | 3 +-
> drivers/infiniband/ulp/ipoib/ipoib_cm.c | 34 ++-
> drivers/infiniband/ulp/ipoib/ipoib_ib.c | 42 +--
> drivers/infiniband/ulp/iser/iscsi_iser.c | 11 +-
> drivers/infiniband/ulp/iser/iser_initiator.c | 88 +++---
> drivers/infiniband/ulp/iser/iser_memory.c | 13 +-
> drivers/infiniband/ulp/iser/iser_verbs.c | 6 +-
> drivers/infiniband/ulp/isert/ib_isert.c | 120 ++++----
> drivers/infiniband/ulp/srp/ib_srp.c | 80 +++---
> drivers/infiniband/ulp/srpt/ib_srpt.c | 18 +-
> drivers/iommu/amd_iommu.c | 10 +-
> drivers/misc/mic/bus/mic_bus.c | 4 +-
> drivers/misc/mic/bus/scif_bus.c | 4 +-
> drivers/misc/mic/bus/scif_bus.h | 2 +-
> drivers/misc/mic/bus/vop_bus.c | 2 +-
> drivers/misc/mic/host/mic_boot.c | 4 +-
> drivers/nvme/host/rdma.c | 35 +--
> drivers/nvme/target/rdma.c | 32 +--
> drivers/parisc/ccio-dma.c | 2 +-
> drivers/parisc/sba_iommu.c | 2 +-
> drivers/pci/host/vmd.c | 2 +-
> .../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h | 14 +-
> include/linux/device.h | 1 +
> include/linux/dma-mapping.h | 55 ++--
> include/linux/mic_bus.h | 2 +-
> include/rdma/ib_verbs.h | 310 ---------------------
> include/xen/arm/hypervisor.h | 2 +-
> lib/Kconfig | 10 +
> lib/Makefile | 3 +-
> lib/dma-noop.c | 4 +-
> lib/dma-virt.c | 73 +++++
> net/9p/trans_rdma.c | 24 +-
> net/rds/ib.h | 45 +--
> net/rds/ib_cm.c | 42 +--
> net/rds/ib_fmr.c | 10 +-
> net/rds/ib_frmr.c | 12 +-
> net/rds/ib_mr.h | 1 -
> net/rds/ib_rdma.c | 13 +-
> net/rds/ib_recv.c | 19 +-
> net/rds/ib_send.c | 50 ++--
> net/sunrpc/xprtrdma/fmr_ops.c | 12 +-
> net/sunrpc/xprtrdma/frwr_ops.c | 12 +-
> net/sunrpc/xprtrdma/rpc_rdma.c | 28 +-
> net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 7 +-
> net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 20 +-
> net/sunrpc/xprtrdma/svc_rdma_sendto.c | 26 +-
> net/sunrpc/xprtrdma/svc_rdma_transport.c | 17 +-
> net/sunrpc/xprtrdma/verbs.c | 18 +-
> 179 files changed, 911 insertions(+), 2011 deletions(-)
> delete mode 100644 drivers/infiniband/hw/hfi1/dma.c
> delete mode 100644 drivers/infiniband/hw/qib/qib_dma.c
> delete mode 100644 drivers/infiniband/sw/rdmavt/dma.c
> delete mode 100644 drivers/infiniband/sw/rdmavt/dma.h
> delete mode 100644 drivers/infiniband/sw/rxe/rxe_dma.c
> create mode 100644 lib/dma-virt.c
>
> --
> 2.11.0
>
> --
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