Commit 9352d40c authored by Mohammad Heib's avatar Mohammad Heib Committed by Tony Nguyen
Browse files

devlink: Add new "max_mac_per_vf" generic device param 



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: default avatarMohammad Heib <mheib@redhat.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Signed-off-by: default avatarJacob Keller <jacob.e.keller@intel.com>
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent 13068e9d

Documentation/networking/devlink/devlink-params.rst

+4 −0
Original line number Diff line number Diff line
@@ -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).

include/net/devlink.h

+4 −0
Original line number Diff line number Diff line
@@ -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,				\

net/devlink/param.c

+5 −0
Original line number Diff line number Diff line
@@ -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)