linux-ext4 - Re: [PATCH v13 07/12] scsi: ufs: UFS crypto API

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Date:   Fri, 15 May 2020 14:35:26 +0800
From:   Stanley Chu <stanley.chu@...iatek.com>
To:     Satya Tangirala <satyat@...gle.com>
CC:     <linux-block@...r.kernel.org>, <linux-scsi@...r.kernel.org>,
        <linux-fscrypt@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-ext4@...r.kernel.org>,
        "Barani Muthukumaran" <bmuthuku@....qualcomm.com>,
        Kuohong Wang <kuohong.wang@...iatek.com>,
        Kim Boojin <boojin.kim@...sung.com>,
        "Eric Biggers" <ebiggers@...gle.com>
Subject: Re: [PATCH v13 07/12] scsi: ufs: UFS crypto API

Hi Satya,

On Thu, 2020-05-14 at 00:37 +0000, Satya Tangirala wrote:
> Introduce functions to manipulate UFS inline encryption hardware
> in line with the JEDEC UFSHCI v2.1 specification and to work with the
> block keyslot manager.
> 
> The UFS crypto API will assume by default that a vendor driver doesn't
> support UFS crypto, even if the hardware advertises the capability, because
> a lot of hardware requires some special handling that's not specified in
> the aforementioned JEDEC spec. Each vendor driver must explicity set

explicitly

> hba->caps |= UFSHCD_CAP_CRYPTO before ufshcd_hba_init_crypto is called to
> opt-in to UFS crypto support.
> 
> Signed-off-by: Satya Tangirala <satyat@...gle.com>
> Reviewed-by: Eric Biggers <ebiggers@...gle.com>

Reviewed-by: Stanley Chu <stanley.chu@...iatek.com>