[PATCH RESEND net-next 03/10] devlink: Add new "enable_vnet" generic device param
From: Parav Pandit <hidden>
Date: 2021-08-10 13:24:50
Also in:
netdev, virtualization
Subsystem:
devlink, documentation, networking [general], the rest · Maintainers:
Jiri Pirko, Jonathan Corbet, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add new device generic parameter to enable/disable creation of
VDPA net auxiliary device and associated device functionality
in the devlink instance.
User who prefers to disable such functionality can disable it using below
example.
$ devlink dev param set pci/0000:06:00.0 \
name enable_vnet value false cmode driverinit
$ devlink dev reload pci/0000:06:00.0
At this point devlink instance do not create auxiliary device for the
VDPA net functionality.
Signed-off-by: Parav Pandit <redacted>
Reviewed-by: Jiri Pirko <redacted>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
---
Documentation/networking/devlink/devlink-params.rst | 4 ++++
include/net/devlink.h | 4 ++++
net/core/devlink.c | 5 +++++
3 files changed, 13 insertions(+)
diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst
index a49da0b049b6..4878907e9232 100644
--- a/Documentation/networking/devlink/devlink-params.rst
+++ b/Documentation/networking/devlink/devlink-params.rst@@ -105,6 +105,10 @@ own name. - Boolean - When enabled, the device driver will instantiate RDMA specific auxiliary device of the devlink device. + * - ``enable_vnet`` + - Boolean + - When enabled, the device driver will instantiate VDPA networking + specific auxiliary device of the devlink device. * - ``internal_err_reset`` - Boolean - When enabled, the device driver will reset the device on internal
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 6f4f0416e598..0a0becbcdc49 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h@@ -521,6 +521,7 @@ enum devlink_param_generic_id { DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET, DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH, DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, + DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, /* add new param generic ids above here*/ __DEVLINK_PARAM_GENERIC_ID_MAX,
@@ -567,6 +568,9 @@ enum devlink_param_generic_id { #define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME "enable_rdma" #define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE DEVLINK_PARAM_TYPE_BOOL +#define DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME "enable_vnet" +#define DEVLINK_PARAM_GENERIC_ENABLE_VNET_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 b68d6921d34f..867ae7e39788 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c@@ -4287,6 +4287,11 @@ static const struct devlink_param devlink_param_generic[] = { .name = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME, .type = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE, }, + { + .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, + .name = DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME, + .type = DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE, + }, }; static int devlink_param_generic_verify(const struct devlink_param *param)
--
2.26.2