Yaniv,
On Thu, 2015-01-15 at 16:32 +0200, Yaniv Gardi wrote:
> From: Yaniv Gardi <ygardi@xxxxxxxxxxxxxxxx>
>
> In-order to enhance storage encryption performance,
> an Inline Cryptographic Engine is introduced to UFS.
> This patch adds in-line encryption capabilities to the UFS
> driver.
>
> Signed-off-by: Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>
This patch became commit 8805ccd069b7 ("ufs-qcom-ice: add Inline Crypto
Engine (ICE) support for UFS") in today's linux-next (ie,
next-20150123). I noticed because a script I use to check linux-next
spotted a problem with it.
> ---
> drivers/scsi/ufs/Kconfig | 12 +
> drivers/scsi/ufs/Makefile | 1 +
> drivers/scsi/ufs/ufs-qcom-ice.c | 520 ++++++++++++++++++++++++++++++++++++++++
> drivers/scsi/ufs/ufs-qcom-ice.h | 113 +++++++++
> drivers/scsi/ufs/ufs-qcom.c | 56 ++++-
> drivers/scsi/ufs/ufs-qcom.h | 25 ++
> 6 files changed, 726 insertions(+), 1 deletion(-)
> create mode 100644 drivers/scsi/ufs/ufs-qcom-ice.c
> create mode 100644 drivers/scsi/ufs/ufs-qcom-ice.h
>
> diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
> index 8a1f4b3..ecf34ed 100644
> --- a/drivers/scsi/ufs/Kconfig
> +++ b/drivers/scsi/ufs/Kconfig
> @@ -83,3 +83,15 @@ config SCSI_UFS_QCOM
>
> Select this if you have UFS controller on QCOM chipset.
> If unsure, say N.
> +
> +config SCSI_UFS_QCOM_ICE
> + bool "QCOM specific hooks to Inline Crypto Engine for UFS driver"
> + depends on SCSI_UFS_QCOM && CRYPTO_DEV_QCOM_ICE
There's currently no Kconfig symbol CRYPTO_DEV_QCOM_ICE in linux-next.
So SCSI_UFS_QCOM_ICE can not be set and these "in-line encryption
capabilities" can not be enabled.
> + help
> + This selects the QCOM specific additions to support Inline Crypto
> + Engine (ICE).
> + ICE accelerates the crypto operations and maintains the high UFS
> + performance.
> +
> + Select this if you have ICE supported for UFS on QCOM chipset.
> + If unsure, say N.
> diff --git a/drivers/scsi/ufs/Makefile b/drivers/scsi/ufs/Makefile
> index 8303bcc..31adca5 100644
> --- a/drivers/scsi/ufs/Makefile
> +++ b/drivers/scsi/ufs/Makefile
> @@ -1,5 +1,6 @@
> # UFSHCD makefile
> obj-$(CONFIG_SCSI_UFS_QCOM) += ufs-qcom.o
> +obj-$(CONFIG_SCSI_UFS_QCOM_ICE) += ufs-qcom-ice.o
> obj-$(CONFIG_SCSI_UFSHCD) += ufshcd.o
> obj-$(CONFIG_SCSI_UFSHCD_PCI) += ufshcd-pci.o
> obj-$(CONFIG_SCSI_UFSHCD_PLATFORM) += ufshcd-pltfrm.o
> diff --git a/drivers/scsi/ufs/ufs-qcom-ice.c b/drivers/scsi/ufs/ufs-qcom-ice.c
> new file mode 100644
> index 0000000..9202b73
> --- /dev/null
> +++ b/drivers/scsi/ufs/ufs-qcom-ice.c
> @@ -0,0 +1,520 @@
> +/* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 and
> + * only version 2 as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + */
> +
> +#include <linux/of.h>
> +#include <linux/async.h>
> +#include <linux/blkdev.h>
> +#include <crypto/ice.h>
This header is not included in linux-next so manually building
ufs-qcom-ice.o isn't possible either.
I assume a series to add CRYPTO_DEV_QCOM_ICE and crypto/ice.h (and
whatever else is needed to build this) is queued somewhere. Is that
correct?
Paul Bolle
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