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Sun, 07 Sep 2025 03:05:23 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHy78tM0pUm983bEUmFh4QtO1D/4cF7xG7JMTEeRcr/FG0Xk/vXwOqZBNkRnYDcI3Pqok0ACQ== X-Received: by 2002:a05:6000:2dc9:b0:3e5:25c2:9635 with SMTP id ffacd0b85a97d-3e64c3aebe5mr3707337f8f.56.1757239522692; Sun, 07 Sep 2025 03:05:22 -0700 (PDT) Received: from fedora.redhat.com ([147.235.216.242]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3db72983560sm19323344f8f.1.2025.09.07.03.05.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 07 Sep 2025 03:05:22 -0700 (PDT) From: mheib@redhat.com To: intel-wired-lan@lists.osuosl.org Cc: przemyslawx.patynowski@intel.com, jiri@resnulli.us, netdev@vger.kernel.org, horms@kernel.org, jacob.e.keller@intel.com, aleksandr.loktionov@intel.com, anthony.l.nguyen@intel.com, przemyslaw.kitszel@intel.com, Mohammad Heib Subject: [PATCH net-next,v4,1/2] devlink: Add new "max_mac_per_vf" generic device param Date: Sun, 7 Sep 2025 13:04:53 +0300 Message-ID: <20250907100454.193420-1-mheib@redhat.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Mohammad Heib 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 --- Documentation/networking/devlink/devlink-params.rst | 4 ++++ include/net/devlink.h | 4 ++++ net/devlink/param.c | 5 +++++ 3 files changed, 13 insertions(+) diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst index 211b58177e12..74a35f3b7c9a 100644 --- a/Documentation/networking/devlink/devlink-params.rst +++ b/Documentation/networking/devlink/devlink-params.rst @@ -143,3 +143,7 @@ own name. * - ``clock_id`` - u64 - Clock ID used by the device for registering DPLL devices and pins. + * - ``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 b32c9ceeb81d..dde5dcbca625 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -530,6 +530,7 @@ enum devlink_param_generic_id { DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, DEVLINK_PARAM_GENERIC_ID_ENABLE_PHC, DEVLINK_PARAM_GENERIC_ID_CLOCK_ID, + DEVLINK_PARAM_GENERIC_ID_MAX_MAC_PER_VF, /* add new param generic ids above here*/ __DEVLINK_PARAM_GENERIC_ID_MAX, @@ -594,6 +595,9 @@ enum devlink_param_generic_id { #define DEVLINK_PARAM_GENERIC_CLOCK_ID_NAME "clock_id" #define DEVLINK_PARAM_GENERIC_CLOCK_ID_TYPE DEVLINK_PARAM_TYPE_U64 +#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 41dcc86cfd94..62fd789ae01c 100644 --- a/net/devlink/param.c +++ b/net/devlink/param.c @@ -102,6 +102,11 @@ static const struct devlink_param devlink_param_generic[] = { .name = DEVLINK_PARAM_GENERIC_CLOCK_ID_NAME, .type = DEVLINK_PARAM_GENERIC_CLOCK_ID_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) -- 2.50.1