linux-kernel - [PATCH v15 4/9] nvmet-passthru: Introduce NVMet passthru Kconfig option

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Date:   Thu, 16 Jul 2020 14:33:14 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org
Cc:     Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>,
        Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...com>,
        Chaitanya Kulkarni <Chaitanya.Kulkarni@....com>,
        Max Gurtovoy <maxg@...lanox.com>,
        Stephen Bates <sbates@...thlin.com>,
        Chaitanya Kulkarni <chaitanya.kulkarni@....com>,
        Logan Gunthorpe <logang@...tatee.com>
Subject: [PATCH v15 4/9] nvmet-passthru: Introduce NVMet passthru Kconfig option

From: Chaitanya Kulkarni <chaitanya.kulkarni@....com>

This patch updates KConfig file for the NVMeOF target where we add new
option so that user can selectively enable/disable passthru code.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@....com>
[logang@...tatee.com: fixed some of the wording in the help message]
Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
Reviewed-by: Sagi Grimberg <sagi@...mberg.me>
---
 drivers/nvme/target/Kconfig | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/nvme/target/Kconfig b/drivers/nvme/target/Kconfig
index 4474952d64c6..8056955e652c 100644
--- a/drivers/nvme/target/Kconfig
+++ b/drivers/nvme/target/Kconfig
@@ -16,6 +16,18 @@ config NVME_TARGET
 	  To configure the NVMe target you probably want to use the nvmetcli
 	  tool from http://git.infradead.org/users/hch/nvmetcli.git.
 
+config NVME_TARGET_PASSTHRU
+	bool "NVMe Target Passthrough support"
+	depends on NVME_TARGET
+	depends on NVME_CORE=y || NVME_CORE=NVME_TARGET
+	help
+	  This enables target side NVMe passthru controller support for the
+	  NVMe Over Fabrics protocol. It allows for hosts to manage and
+	  directly access an actual NVMe controller residing on the target
+	  side, incuding executing Vendor Unique Commands.
+
+	  If unsure, say N.
+
 config NVME_TARGET_LOOP
 	tristate "NVMe loopback device support"
 	depends on NVME_TARGET
-- 
2.20.1