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devlink: Add new "enable_vnet" generic device param

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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 <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Parav Pandit 2021-08-10 16:24:17 +03:00 • committed by David S. Miller
parent 8ddaabee3c
commit 076b2a9dbb
3 changed files with 13 additions and 0 deletions
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5
net/core/devlink.c
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@ -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)