diff mbox series

[net-next,1/4] devlink: Add new "enable_hot_fw_reset" generic device parameter.

Message ID 1589790439-10487-2-git-send-email-vasundhara-v.volam@broadcom.com
State New
Headers show
Series [net-next,1/4] devlink: Add new "enable_hot_fw_reset" generic device parameter. | expand

Commit Message

Vasundhara Volam May 18, 2020, 8:27 a.m. UTC 
Add a new "enable_hot_fw_reset" generic device parameter to enable
or disable hot firmware reset capability on the device.

Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
---
 Documentation/networking/devlink/devlink-params.rst | 6 ++++++
 include/net/devlink.h                               | 4 ++++
 net/core/devlink.c                                  | 5 +++++
 3 files changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst
index d075fd0..ba75437 100644
--- a/Documentation/networking/devlink/devlink-params.rst
+++ b/Documentation/networking/devlink/devlink-params.rst
@@ -108,3 +108,9 @@  own name.
    * - ``region_snapshot_enable``
      - Boolean
      - Enable capture of ``devlink-region`` snapshots.
+   * - ``enable_hot_fw_reset``
+     - Boolean
+     - Enable hot firmware reset on the device. When enabled, device supports
+       hot firmware reset capability which will be able to reset the running
+       firmware or upgrade/downgrade of flashed firmware without a driver
+       reload.
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 8ffc1b5c..57377bf 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -406,6 +406,7 @@  enum devlink_param_generic_id {
 	DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
 	DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE,
 	DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
+	DEVLINK_PARAM_GENERIC_ID_ENABLE_HOT_FW_RESET,
 
 	/* add new param generic ids above here*/
 	__DEVLINK_PARAM_GENERIC_ID_MAX,
@@ -443,6 +444,9 @@  enum devlink_param_generic_id {
 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME "enable_roce"
 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE DEVLINK_PARAM_TYPE_BOOL
 
+#define DEVLINK_PARAM_GENERIC_ENABLE_HOT_FW_RESET_NAME "enable_hot_fw_reset"
+#define DEVLINK_PARAM_GENERIC_ENABLE_HOT_FW_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
+
 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)	\
 {									\
 	.id = DEVLINK_PARAM_GENERIC_ID_##_id,				\
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 7b76e5f..32fb8e6 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -3011,6 +3011,11 @@  static int devlink_nl_cmd_flash_update(struct sk_buff *skb,
 		.name = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME,
 		.type = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE,
 	},
+	{
+		.id = DEVLINK_PARAM_GENERIC_ID_ENABLE_HOT_FW_RESET,
+		.name = DEVLINK_PARAM_GENERIC_ENABLE_HOT_FW_RESET_NAME,
+		.type = DEVLINK_PARAM_GENERIC_ENABLE_HOT_FW_RESET_TYPE,
+	},
 };
 
 static int devlink_param_generic_verify(const struct devlink_param *param)