netdev - Re: [PATCH 1/1] make network DMA usable for non-tcp drivers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20070608120716.1e059cf3.akpm@linux-foundation.org>
Date:	Fri, 8 Jun 2007 12:07:16 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Ed L. Cashin" <ecashin@...aid.com>
Cc:	netdev@...r.kernel.org, s.a.hopkins@...il.com, jgarzik@...ox.com,
	randy.dunlap@...cle.com
Subject: Re: [PATCH 1/1] make network DMA usable for non-tcp drivers

On Fri, 8 Jun 2007 10:30:53 -0400
"Ed L. Cashin" <ecashin@...aid.com> wrote:

> Here is a patch against the netdev-2.6 git tree that makes the net DMA
> feature usable for drivers like the ATA over Ethernet block driver,
> which can use dma_skb_copy_datagram_iovec when receiving data from the
> network.
> 
> The change was suggested on kernelnewbies.
> 
>   http://article.gmane.org/gmane.linux.kernel.kernelnewbies/21663
> 
> Signed-off-by: Ed L. Cashin <ecashin@...aid.com>
> ---
>  drivers/dma/Kconfig |    2 +-
>  net/core/user_dma.c |    2 ++
>  2 files changed, 3 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
> index 72be6c6..270d23e 100644
> --- a/drivers/dma/Kconfig
> +++ b/drivers/dma/Kconfig
> @@ -14,7 +14,7 @@ config DMA_ENGINE
>  comment "DMA Clients"
>  
>  config NET_DMA
> -	bool "Network: TCP receive copy offload"
> +	bool "Network: receive copy offload"
>  	depends on DMA_ENGINE && NET
>  	default y
>  	---help---
> diff --git a/net/core/user_dma.c b/net/core/user_dma.c
> index 0ad1cd5..69d0b15 100644
> --- a/net/core/user_dma.c
> +++ b/net/core/user_dma.c
> @@ -130,3 +130,5 @@ end:
>  fault:
>  	return -EFAULT;
>  }
> +
> +EXPORT_SYMBOL(dma_skb_copy_datagram_iovec);

We wouldn't want to merge this until code which actually uses the export is
also merged.

-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html