From: Mohammad Heib <mheib@redhat.com>
Add a new device generic parameter to controls the maximum
number of MAC filters allowed per VF.
For example, to limit a VF to 3 MAC addresses:
$ devlink dev param set pci/0000:3b:00.0 name max_mac_per_vf \
value 3 \
cmode runtime
Signed-off-by: Mohammad Heib <mheib@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
---
include/net/devlink.h | 4 ++++
net/devlink/param.c | 5 +++++
Documentation/networking/devlink/devlink-params.rst | 4 ++++
3 files changed, 13 insertions(+)
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 9e824f61e40f..d01046ef0577 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -532,6 +532,7 @@ enum devlink_param_generic_id {
DEVLINK_PARAM_GENERIC_ID_CLOCK_ID,
DEVLINK_PARAM_GENERIC_ID_TOTAL_VFS,
DEVLINK_PARAM_GENERIC_ID_NUM_DOORBELLS,
+ DEVLINK_PARAM_GENERIC_ID_MAX_MAC_PER_VF,
/* add new param generic ids above here*/
__DEVLINK_PARAM_GENERIC_ID_MAX,
@@ -602,6 +603,9 @@ enum devlink_param_generic_id {
#define DEVLINK_PARAM_GENERIC_NUM_DOORBELLS_NAME "num_doorbells"
#define DEVLINK_PARAM_GENERIC_NUM_DOORBELLS_TYPE DEVLINK_PARAM_TYPE_U32
+#define DEVLINK_PARAM_GENERIC_MAX_MAC_PER_VF_NAME "max_mac_per_vf"
+#define DEVLINK_PARAM_GENERIC_MAX_MAC_PER_VF_TYPE DEVLINK_PARAM_TYPE_U32
+
#define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate) \
{ \
.id = DEVLINK_PARAM_GENERIC_ID_##_id, \
diff --git a/net/devlink/param.c b/net/devlink/param.c
index 70e69523412c..6b233b13b69a 100644
--- a/net/devlink/param.c
+++ b/net/devlink/param.c
@@ -112,6 +112,11 @@ static const struct devlink_param devlink_param_generic[] = {
.name = DEVLINK_PARAM_GENERIC_NUM_DOORBELLS_NAME,
.type = DEVLINK_PARAM_GENERIC_NUM_DOORBELLS_TYPE,
},
+ {
+ .id = DEVLINK_PARAM_GENERIC_ID_MAX_MAC_PER_VF,
+ .name = DEVLINK_PARAM_GENERIC_MAX_MAC_PER_VF_NAME,
+ .type = DEVLINK_PARAM_GENERIC_MAX_MAC_PER_VF_TYPE,
+ },
};
static int devlink_param_generic_verify(const struct devlink_param *param)
diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst
index 0a9c20d70122..c0597d456641 100644
--- a/Documentation/networking/devlink/devlink-params.rst
+++ b/Documentation/networking/devlink/devlink-params.rst
@@ -151,3 +151,7 @@ own name.
* - ``num_doorbells``
- u32
- Controls the number of doorbells used by the device.
+ * - ``max_mac_per_vf``
+ - u32
+ - Controls the maximum number of MAC address filters that can be assigned
+ to a Virtual Function (VF).
--
2.51.0.rc1.197.g6d975e95c9d7