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From: Shiraz Saleem <shiraz.saleem@intel.com>
Date: Mon, 18 Oct 2021 18:16:01 -0500
Subject: devlink: Add 'enable_iwarp' generic device param
Patch-mainline: v5.17-rc1
Git-commit: 325e0d0aa683a96b9d9cd5802be524d4da5e2dd2
References: bsc#1200502

Add a new device generic parameter to enable and disable
iWARP functionality on a multi-protocol RDMA device.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Tested-by: Leszek Kaliszczuk <leszek.kaliszczuk@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 Documentation/networking/devlink/devlink-params.rst |    3 +++
 include/net/devlink.h                               |    4 ++++
 net/core/devlink.c                                  |    5 +++++
 3 files changed, 12 insertions(+)

--- a/Documentation/networking/devlink/devlink-params.rst
+++ b/Documentation/networking/devlink/devlink-params.rst
@@ -109,6 +109,9 @@ own name.
      - Boolean
      - When enabled, the device driver will instantiate VDPA networking
        specific auxiliary device of the devlink device.
+   * - ``enable_iwarp``
+     - Boolean
+     - Enable handling of iWARP traffic in the device.
    * - ``internal_err_reset``
      - Boolean
      - When enabled, the device driver will reset the device on internal
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -485,6 +485,7 @@ enum devlink_param_generic_id {
 	DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
 	DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
 	DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
+	DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
 
 	/* add new param generic ids above here*/
 	__DEVLINK_PARAM_GENERIC_ID_MAX,
@@ -534,6 +535,9 @@ enum devlink_param_generic_id {
 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME "enable_vnet"
 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE DEVLINK_PARAM_TYPE_BOOL
 
+#define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME "enable_iwarp"
+#define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE DEVLINK_PARAM_TYPE_BOOL
+
 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)	\
 {									\
 	.id = DEVLINK_PARAM_GENERIC_ID_##_id,				\
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -4430,6 +4430,11 @@ static const struct devlink_param devlin
 		.name = DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME,
 		.type = DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE,
 	},
+	{
+		.id = DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
+		.name = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME,
+		.type = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE,
+	},
 };
 
 static int devlink_param_generic_verify(const struct devlink_param *param)