linux-kernel - Re: [EXT] Re: [V5 1/2] dmaengine: fsl-dpaa2-qdma: Add the DPDMAI(Data Path DMA Interface) support

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Date:   Tue, 22 Oct 2019 11:27:13 +0200
From:   Anders Roxell <anders.roxell@...aro.org>
To:     Peng Ma <peng.ma@....com>
Cc:     Vinod Koul <vkoul@...nel.org>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>,
        Leo Li <leoyang.li@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>
Subject: Re: [EXT] Re: [V5 1/2] dmaengine: fsl-dpaa2-qdma: Add the DPDMAI(Data
 Path DMA Interface) support

On Thu, 17 Oct 2019 at 08:16, Peng Ma <peng.ma@....com> wrote:
>
> Hi Vinod,
>
> Thanks very much for your reply.
>
> Best Regards,
> Peng
> >-----Original Message-----
> >From: Vinod Koul <vkoul@...nel.org>
> >Sent: 2019年10月17日 12:11
> >To: Peng Ma <peng.ma@....com>
> >Cc: dan.j.williams@...el.com; Leo Li <leoyang.li@....com>;
> >linux-kernel@...r.kernel.org; dmaengine@...r.kernel.org
> >Subject: [EXT] Re: [V5 1/2] dmaengine: fsl-dpaa2-qdma: Add the DPDMAI(Data
> >Path DMA Interface) support
> >
> >Caution: EXT Email
> >
> >On 30-09-19, 02:04, Peng Ma wrote:
> >> The MC(Management Complex) exports the DPDMAI(Data Path DMA
> >Interface)
> >> object as an interface to operate the DPAA2(Data Path Acceleration
> >> Architecture 2) qDMA Engine. The DPDMAI enables sending frame-based
> >> requests to qDMA and receiving back confirmation response on
> >> transaction completion, utilizing the DPAA2 QBMan(Queue Manager and
> >> Buffer Manager
> >> hardware) infrastructure. DPDMAI object provides up to two priorities
> >> for processing qDMA requests.
> >> The following list summarizes the DPDMAI main features and capabilities:
> >>       1. Supports up to two scheduling priorities for processing
> >>       service requests.
> >>       - Each DPDMAI transmit queue is mapped to one of two service
> >>       priorities, allowing further prioritization in hardware between
> >>       requests from different DPDMAI objects.
> >>       2. Supports up to two receive queues for incoming transaction
> >>       completion confirmations.
> >>       - Each DPDMAI receive queue is mapped to one of two receive
> >>       priorities, allowing further prioritization between other
> >>       interfaces when associating the DPDMAI receive queues to DPIO
> >>       or DPCON(Data Path Concentrator) objects.
> >>       3. Supports different scheduling options for processing received
> >>       packets:
> >>       - Queues can be configured either in 'parked' mode (default),
> >>       or attached to a DPIO object, or attached to DPCON object.
> >>       4. Allows interaction with one or more DPIO objects for
> >>       dequeueing/enqueueing frame descriptors(FD) and for
> >>       acquiring/releasing buffers.
> >>       5. Supports enable, disable, and reset operations.
> >>
> >> Add dpdmai to support some platforms with dpaa2 qdma engine.
> >
> >Applied both, thanks

I see this error when I'm building.

WARNING: modpost: missing MODULE_LICENSE() in
drivers/dma/fsl-dpaa2-qdma/dpdmai.o
see include/linux/module.h for more information
ERROR: "dpdmai_enable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_set_rx_queue"
[drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_get_tx_queue"
[drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_get_rx_queue"
[drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_get_attributes"
[drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_open" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_close" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_disable" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
ERROR: "dpdmai_reset" [drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.ko] undefined!
make[2]: *** [../scripts/Makefile.modpost:95: __modpost] Error 1
make[1]: *** [/srv/src/kernel/next/Makefile:1282: modules] Error 2
make: *** [Makefile:179: sub-make] Error 2
make: Target 'Image' not remade because of errors.
make: Target 'modules' not remade because of errors.

any other that see the same ?

Cheers,
Anders