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[79.177.147.123]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-475dd374e4esm31935335e9.11.2025.10.25.06.10.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 25 Oct 2025 06:10:48 -0700 (PDT) From: mheib@redhat.com To: intel-wired-lan@lists.osuosl.org Cc: kuba@kernel.org, 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 Date: Sat, 25 Oct 2025 16:08:58 +0300 Message-ID: <20251025130859.144916-1-mheib@redhat.com> X-Mailer: git-send-email 2.50.1 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: NY2hkxCPsCsdrNxruXIGhmueHjKeJbR5WXtP6C2cwBQ_1761397849 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1761397852; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=MfnHEtILWETgTkXrR+8vZKONJFHmwrYlLtpgQi2+OKs=; b=KcVlSj+PtZieBG2Hp3/nesFPT7SUK2vNgVsD5a5jRsYPu0ZwCgGjr2yWulm/+8noyNXn6a Niq+CCH+F9hGCj1WvQ16AnVyMuWtFr7+jPcrAkJ3gT1XHkZE9iQ5YguLWgE1LcO+VRw5kB RHW7Ky0Z3Gv8uigeL3wT38lZ6pkii44= X-Mailman-Original-Authentication-Results: smtp1.osuosl.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com X-Mailman-Original-Authentication-Results: smtp1.osuosl.org; dkim=pass (1024-bit key, unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=KcVlSj+P Subject: [Intel-wired-lan] [PATCH net-next, v5, 1/2] devlink: Add new "max_mac_per_vf" generic device param X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" 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 Signed-off-by: Jacob Keller --- 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 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). 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) -- 2.50.1