netdev - Re: [PATCH net-next 4/9] net: rswitch: Add unmap_addrs instead of dma address in each desc

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Message-ID: <39248b92-3439-c1ed-e4f5-9f1f61fada34@gmail.com>
Date: Tue, 28 Nov 2023 12:06:37 +0300
From: Sergei Shtylyov <sergei.shtylyov@...il.com>
To: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>, s.shtylyov@....ru,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Cc: netdev@...r.kernel.org, linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH net-next 4/9] net: rswitch: Add unmap_addrs instead of dma
 address in each desc

On 11/27/23 2:53 PM, Yoshihiro Shimoda wrote:

> If the driver would like to transmit a jumbo frame like 2KiB or more,
> it should be split into multiple queues. In near the future, to support

   In the near future, you mean?

> this, add unmap_addrs array to unmap dma mapping address instead of dma
> address in each TX descriptor because the descriptors may not have
> the top dma address.
> 
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
[...]

MBR, Sergey