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From: Joe Hershberger <joe.hershberger@ni.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/6] dma: ti: k3-udma: Implement dma_get_cfg() interface
Date: Wed, 20 Nov 2019 22:53:24 +0000	[thread overview]
Message-ID: <CANr=Z=ZSHUDuhVFwYJQ9zCjOH-wAE=nA_hYK7hcSCXuZ3TU3Xg@mail.gmail.com> (raw)
In-Reply-To: <20191118105910.14472-3-vigneshr@ti.com>

On Mon, Nov 18, 2019 at 4:59 AM Vignesh Raghavendra <vigneshr@ti.com> wrote:
>
> Implement dma_get_cfg() interface to pass flow id information for DMA
> clients to use. This is needed because on K3 SoCs, CPSW (ethernet) and
> UDMA (DMA provider) support "flows" within a given RX DMA channel. This
> allows different network packets to be segregated while using same RX
> DMA channel. In order for basic ethernet to work, CPSW slave must be
> aware of the flow ID allocated for the RX channel by the DMA driver.
> This interface allows CPSW to query flow ID from DMA provider and
> configure it in CPSW HW.
>
> Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

Acked-by: Joe Hershberger <joe.hershberger@ni.com>

  reply	other threads:[~2019-11-20 22:53 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-18 10:59 [U-Boot] [PATCH 0/6] J721e: Add networking support Vignesh Raghavendra
2019-11-18 10:59 ` [U-Boot] [PATCH 1/6] dma: Introduce dma_get_cfg() interface Vignesh Raghavendra
2019-11-20 22:24   ` Joe Hershberger
2019-11-18 10:59 ` [U-Boot] [PATCH 2/6] dma: ti: k3-udma: Implement " Vignesh Raghavendra
2019-11-20 22:53   ` Joe Hershberger [this message]
2019-11-18 10:59 ` [U-Boot] [PATCH 3/6] net: ti: am65-cpsw-nuss: Rework RX flow ID handling Vignesh Raghavendra
2019-11-20 22:46   ` Joe Hershberger
2019-11-18 10:59 ` [U-Boot] [PATCH 4/6] net: ti: am65-cpsw-nuss: Add new compatible for J721e Vignesh Raghavendra
2019-11-20 22:46   ` Joe Hershberger
2019-11-18 10:59 ` [U-Boot] [PATCH 5/6] arm: dts: k3-j721e-common-proc-board: Add DMA and CPSW related DT nodes Vignesh Raghavendra
2019-11-20 22:47   ` Joe Hershberger
2019-11-18 10:59 ` [U-Boot] [PATCH 6/6] configs: j721e_evm_a72_defconfig: Enable DMA and Ethernet Vignesh Raghavendra
2019-11-20 22:53   ` Joe Hershberger
2019-11-21 12:32 ` [U-Boot] [PATCH 0/6] J721e: Add networking support Grygorii Strashko
2019-11-21 12:43   ` Vignesh Raghavendra

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