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SubjectRE: [PATCH v2 00/22] SMMU enablement for NXP LS1043A and LS1046A
Date
> -----Original Message-----
> From: laurentiu.tudor@nxp.com [mailto:laurentiu.tudor@nxp.com]
> Sent: Wednesday, September 26, 2018 4:22 PM
> To: devicetree@vger.kernel.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org
> Cc: Roy Pledge <roy.pledge@nxp.com>; Madalin-cristian Bucur
> <madalin.bucur@nxp.com>; davem@davemloft.net; shawnguo@kernel.org; Leo Li
> <leoyang.li@nxp.com>; robin.murphy@arm.com; Bharat Bhushan
> <bharat.bhushan@nxp.com>; Laurentiu Tudor <laurentiu.tudor@nxp.com>
> Subject: [PATCH v2 00/22] SMMU enablement for NXP LS1043A and LS1046A
>
> From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
>
> This patch series adds SMMU support for NXP LS1043A and LS1046A chips
> and consists mostly in important driver fixes and the required device
> tree updates. It touches several subsystems and consists of three main
> parts:
> - changes in soc/drivers/fsl/qbman drivers adding iommu mapping of
> reserved memory areas, fixes and defered probe support
> - changes in drivers/net/ethernet/freescale/dpaa_eth drivers
> consisting in misc dma mapping related fixes and probe ordering
> - addition of the actual arm smmu device tree node together with
> various adjustments to the device trees
>
> Performance impact
>
> Running iperf benchmarks in a back-to-back setup (both sides
> having smmu enabled) on a 10GBps port show an important
> networking performance degradation of around 40% (9.48Gbps
> linerate vs 5.45Gbps) and around 30%-35% with iommu.strict=1.
> If you need performance but without SMMU support you can use
> "iommu.passthrough=1" to disable SMMU.
>
> The patch set is based on net-next so, if generally agreed, I'd suggest
> to get the patches through the netdev tree after getting all the Acks.
>
> Changes in v2:
> - dropped confusing comments in smmu interrupt property (Robin)
> - add an intermediate simple-bus for usb to fix dma size issue (Robin)
> - use defines instead of numbers in smmu interrupt definition
> - drop redundant double iommu_get_domain_for_dev() call in few qbman
> patches
>
> Laurentiu Tudor (22):
> soc/fsl/qman: fixup liodns only on ppc targets
> soc/fsl/bman: map FBPR area in the iommu
> soc/fsl/qman: map FQD and PFDR areas in the iommu
> soc/fsl/qman-portal: map CENA area in the iommu
> soc/fsl/qbman: add APIs to retrieve the probing status
> soc/fsl/qman_portals: defer probe after qman's probe
> soc/fsl/bman_portals: defer probe after bman's probe
> soc/fsl/qbman_portals: add APIs to retrieve the probing status
> fsl/fman: backup and restore ICID registers
> fsl/fman: add API to get the device behind a fman port
> dpaa_eth: defer probing after qbman
> dpaa_eth: base dma mappings on the fman rx port
> dpaa_eth: fix iova handling for contiguous frames
> dpaa_eth: fix iova handling for sg frames
> dpaa_eth: fix SG frame cleanup
> arm64: dts: ls1046a: add smmu node
> arm64: dts: ls1043a: add smmu node
> arm64: dts: ls104xa: set mask to drop TBU ID from StreamID
> arm64: dts: ls104x: add missing dma ranges property
> arm64: dts: ls104x: add iommu-map to pci controllers
> arm64: dts: ls104x: make dma-coherent global to the SoC
> arm64: dts: ls104x: use a pseudo-bus to constrain usb dma size
>
> .../arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 106 ++++++++++----
> .../arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 102 ++++++++++---
> .../net/ethernet/freescale/dpaa/dpaa_eth.c | 136 ++++++++++++------
> drivers/net/ethernet/freescale/fman/fman.c | 35 ++++-
> drivers/net/ethernet/freescale/fman/fman.h | 4 +
> .../net/ethernet/freescale/fman/fman_port.c | 14 ++
> .../net/ethernet/freescale/fman/fman_port.h | 2 +
> drivers/soc/fsl/qbman/bman_ccsr.c | 22 +++
> drivers/soc/fsl/qbman/bman_portal.c | 20 ++-
> drivers/soc/fsl/qbman/qman_ccsr.c | 28 ++++
> drivers/soc/fsl/qbman/qman_portal.c | 35 +++++
> include/soc/fsl/bman.h | 16 +++
> include/soc/fsl/qman.h | 17 +++
> 13 files changed, 438 insertions(+), 99 deletions(-)
>
> --
> 2.17.1

For the fsl/fman and dpaa_eth:

Acked-by: Madalin Bucur <madalin.bucur@nxp.com>

Thank you

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