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Date:   Thu, 13 Feb 2020 14:18:08 +0800
From:   Herbert Xu <herbert@gondor.apana.org.au>
To:     Iuliana Prodan <iuliana.prodan@nxp.com>
Cc:     Baolin Wang <baolin.wang@linaro.org>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        Corentin Labbe <clabbe.montjoie@gmail.com>,
        Horia Geanta <horia.geanta@nxp.com>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Alexandre Torgue <alexandre.torgue@st.com>,
        Maxime Ripard <mripard@kernel.org>,
        Aymen Sghaier <aymen.sghaier@nxp.com>,
        "David S. Miller" <davem@davemloft.net>,
        Silvano Di Ninno <silvano.dininno@nxp.com>,
        Franck Lenormand <franck.lenormand@nxp.com>,
        linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-imx <linux-imx@nxp.com>
Subject: Re: [PATCH v3 1/2] crypto: engine - support for parallel requests
Message-ID: <20200213061808.t6udjbgskc2hs7sa@gondor.apana.org.au>
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On Fri, Feb 07, 2020 at 02:36:13PM +0200, Iuliana Prodan wrote:
>
> +start_request:
> +	/* If hardware is busy, do not send any request */
> +	if (engine->can_enqueue_more) {
> +		if (!engine->can_enqueue_more(engine))
> +			goto out;

Instead of a driver callback I'd rather the driver called into
the engine telling it to stop/start, similar to how net drivers
work.

Thanks,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt