linux-kernel - Re: [PATCH 09/10] crypto: omap-aes: gcm: Add support for PIO mode

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Message-ID: <20150702080636.GH4033@saruman.tx.rr.com>
Date:	Thu, 2 Jul 2015 03:06:36 -0500
From:	Felipe Balbi <balbi@...com>
To:	Lokesh Vutla <lokeshvutla@...com>
CC:	<herbert@...dor.apana.org.au>, <linux-crypto@...r.kernel.org>,
	<davem@...emloft.net>, <linux-omap@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <t-kristo@...com>, <nsekhar@...com>
Subject: Re: [PATCH 09/10] crypto: omap-aes: gcm: Add support for PIO mode

On Thu, Jul 02, 2015 at 10:48:39AM +0530, Lokesh Vutla wrote:
> Add support for PIO mode for GCM mode.
> 
> Signed-off-by: Lokesh Vutla <lokeshvutla@...com>

why do you require PIO ? Is there any situation where DMA can't be
used? What would that case be ?

-- 
balbi

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