From: Andrew Lunn <andrew@lunn.ch>
To: "Álvaro Fernández Rojas" <noltari@gmail.com>
Cc: mpm@selenic.com, herbert@gondor.apana.org.au,
nsaenzjulienne@suse.de, f.fainelli@gmail.com, rjui@broadcom.com,
sbranden@broadcom.com, bcm-kernel-feedback-list@broadcom.com,
rikard.falkeborn@gmail.com, linux-crypto@vger.kernel.org,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, stijn@linux-ipv6.be, ynezz@true.cz
Subject: Re: [PATCH] hwrng: bcm2835: set quality to 1000
Date: Sat, 20 Feb 2021 20:09:30 +0100 [thread overview]
Message-ID: <YDFeao/bOxvoXI9D@lunn.ch> (raw)
In-Reply-To: <20210220174741.23665-1-noltari@gmail.com>
On Sat, Feb 20, 2021 at 06:47:40PM +0100, Álvaro Fernández Rojas wrote:
> This allows devices without a high precission timer to reduce boot from >100s
> to <30s.
> diff --git a/drivers/char/hw_random/bcm2835-rng.c b/drivers/char/hw_random/bcm2835-rng.c
> index 1a7c43b43c6b..4b48cb7176b0 100644
> --- a/drivers/char/hw_random/bcm2835-rng.c
> +++ b/drivers/char/hw_random/bcm2835-rng.c
> @@ -163,6 +163,7 @@ static int bcm2835_rng_probe(struct platform_device *pdev)
> priv->rng.init = bcm2835_rng_init;
> priv->rng.read = bcm2835_rng_read;
> priv->rng.cleanup = bcm2835_rng_cleanup;
> + priv->rng.quality = 1000;
Hi Alvero
* @quality: Estimation of true entropy in RNG's bitstream
* (in bits of entropy per 1024 bits of input;
* valid values: 1 to 1024, or 0 for unknown).
How did you determine this device produces 1000 bits of true entropy
per 1024?
Andrew
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Lunn <andrew@lunn.ch>
To: "Álvaro Fernández Rojas" <noltari@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org, stijn@linux-ipv6.be,
f.fainelli@gmail.com, herbert@gondor.apana.org.au,
sbranden@broadcom.com, rjui@broadcom.com,
linux-kernel@vger.kernel.org, rikard.falkeborn@gmail.com,
bcm-kernel-feedback-list@broadcom.com,
linux-crypto@vger.kernel.org, mpm@selenic.com, ynezz@true.cz,
nsaenzjulienne@suse.de, linux-rpi-kernel@lists.infradead.org
Subject: Re: [PATCH] hwrng: bcm2835: set quality to 1000
Date: Sat, 20 Feb 2021 20:09:30 +0100 [thread overview]
Message-ID: <YDFeao/bOxvoXI9D@lunn.ch> (raw)
In-Reply-To: <20210220174741.23665-1-noltari@gmail.com>
On Sat, Feb 20, 2021 at 06:47:40PM +0100, Álvaro Fernández Rojas wrote:
> This allows devices without a high precission timer to reduce boot from >100s
> to <30s.
> diff --git a/drivers/char/hw_random/bcm2835-rng.c b/drivers/char/hw_random/bcm2835-rng.c
> index 1a7c43b43c6b..4b48cb7176b0 100644
> --- a/drivers/char/hw_random/bcm2835-rng.c
> +++ b/drivers/char/hw_random/bcm2835-rng.c
> @@ -163,6 +163,7 @@ static int bcm2835_rng_probe(struct platform_device *pdev)
> priv->rng.init = bcm2835_rng_init;
> priv->rng.read = bcm2835_rng_read;
> priv->rng.cleanup = bcm2835_rng_cleanup;
> + priv->rng.quality = 1000;
Hi Alvero
* @quality: Estimation of true entropy in RNG's bitstream
* (in bits of entropy per 1024 bits of input;
* valid values: 1 to 1024, or 0 for unknown).
How did you determine this device produces 1000 bits of true entropy
per 1024?
Andrew
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-02-20 19:10 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-20 17:47 [PATCH] hwrng: bcm2835: set quality to 1000 Álvaro Fernández Rojas
2021-02-20 17:47 ` Álvaro Fernández Rojas
2021-02-20 19:09 ` Andrew Lunn [this message]
2021-02-20 19:09 ` Andrew Lunn
2021-02-20 19:12 ` Álvaro Fernández Rojas
2021-02-20 19:12 ` Álvaro Fernández Rojas
2021-02-20 19:40 ` Andrew Lunn
2021-02-20 19:40 ` Andrew Lunn
2021-03-03 9:20 ` Herbert Xu
2021-03-03 9:20 ` Herbert Xu
2021-03-03 9:29 ` Álvaro Fernández Rojas
2021-03-03 9:29 ` Álvaro Fernández Rojas
2021-03-04 15:11 ` Nicolas Saenz Julienne
2021-03-04 15:11 ` Nicolas Saenz Julienne
2021-03-04 22:28 ` Florian Fainelli
2021-03-04 22:28 ` Florian Fainelli
2021-03-05 6:26 ` Álvaro Fernández Rojas
2021-03-05 6:26 ` Álvaro Fernández Rojas
2021-03-12 4:52 ` Florian Fainelli
2021-03-12 4:52 ` Florian Fainelli
2021-02-20 19:57 ` [PATCH v2] " Álvaro Fernández Rojas
2021-02-20 19:57 ` Álvaro Fernández Rojas
2021-02-22 19:50 ` [PATCH v3] hwrng: bcm2835: set quality Álvaro Fernández Rojas
2021-02-22 19:50 ` Álvaro Fernández Rojas
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