| Message ID | 20180926132247.10971-1-laurentiu.tudor@nxp.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | SMMU enablement for NXP LS1043A and LS1046A | expand |
> -----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
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(-)