From: Corentin Labbe <clabbe.montjoie@gmail.com>
To: conleylee@foxmail.com
Cc: davem@davemloft.net, kuba@kernel.org, mripard@kernel.org,
wens@csie.org, netdev@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6] sun4i-emac.c: add dma support
Date: Fri, 31 Dec 2021 11:43:53 +0100 [thread overview]
Message-ID: <Yc7e6V9/oioEpx8c@Red> (raw)
In-Reply-To: <tencent_DE05ADA53D5B084D4605BE6CB11E49EF7408@qq.com>
Le Wed, Dec 29, 2021 at 09:43:51AM +0800, conleylee@foxmail.com a écrit :
> From: Conley Lee <conleylee@foxmail.com>
>
> Thanks for your review. Here is the new version for this patch.
>
> This patch adds support for the emac rx dma present on sun4i. The emac
> is able to move packets from rx fifo to RAM by using dma.
>
> Change since v4.
> - rename sbk field to skb
> - rename alloc_emac_dma_req to emac_alloc_dma_req
> - using kzalloc(..., GPF_ATOMIC) in interrupt context to avoid
> sleeping
> - retry by using emac_inblk_32bit when emac_dma_inblk_32bit fails
> - fix some code style issues
>
> Change since v5.
> - fix some code style issue
>
Hello
I just tested this on a sun4i-a10-olinuxino-lime
I got:
[ 2.922812] sun4i-emac 1c0b000.ethernet (unnamed net_device) (uninitialized): get io resource from device: 0x1c0b000, size = 4096
[ 2.934512] sun4i-emac 1c0b000.ethernet (unnamed net_device) (uninitialized): failed to request dma channel. dma is disabled
[ 2.945740] sun4i-emac 1c0b000.ethernet (unnamed net_device) (uninitialized): configure dma failed. disable dma.
[ 2.957887] sun4i-emac 1c0b000.ethernet: eth0: at (ptrval), IRQ 19 MAC: 02:49:09:40:ab:3d
On which board did you test it and how ?
Regards
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next prev parent reply other threads:[~2021-12-31 10:45 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <tencent_95A0609A0DC523F7DDAE60A8746EABAA8905@qq.com>
2021-12-28 11:42 ` [PATCH v5] sun4i-emac.c: add dma support conleylee
2021-12-29 0:48 ` Jakub Kicinski
2021-12-29 1:43 ` [PATCH v6] " conleylee
2021-12-30 2:00 ` patchwork-bot+netdevbpf
2022-05-30 4:51 ` Corentin Labbe
2022-05-30 18:48 ` Jakub Kicinski
2022-05-30 18:55 ` Corentin Labbe
2021-12-31 10:43 ` Corentin Labbe [this message]
[not found] ` <tencent_57960DDC83F43DA3E0A2F47DEBAD69A4A005@qq.com>
2022-01-02 17:38 ` Corentin Labbe
[not found] ` <tencent_67023336008FE777A58293D2D32DEFA69107@qq.com>
2022-01-03 11:42 ` Corentin Labbe
2022-01-03 12:21 ` Conley Lee
2022-01-09 9:17 ` [PATCH v1] sun4i-emac.c: enable emac tx dma conleylee
2022-01-09 20:45 ` Corentin Labbe
2022-01-10 7:47 ` Conley Lee
2022-01-07 23:34 ` [PATCH v6] sun4i-emac.c: add dma support Kees Cook
2022-01-08 2:34 ` Jakub Kicinski
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