From: Mohammad Heib Date: Sat, 25 Oct 2025 13:08:58 +0000 (+0300) Subject: devlink: Add new "max_mac_per_vf" generic device param X-Git-Tag: v6.19-rc1~170^2~203^2~7 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9352d40c8bcd2ef29366d2c38b163c0b115039ed;p=thirdparty%2Fkernel%2Flinux.git 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: Mohammad Heib Reviewed-by: Simon Horman Signed-off-by: Jacob Keller Signed-off-by: Tony Nguyen --- diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst index 0a9c20d701225..c0597d456641d 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). diff --git a/include/net/devlink.h b/include/net/devlink.h index 9e824f61e40f6..d01046ef0577c 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 70e69523412cb..6b233b13b69ae 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)