From patchwork Thu Apr 4 07:59:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karthik Sundaravel X-Patchwork-Id: 13617417 X-Patchwork-Delegate: kuba@kernel.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D1AEB66B5E for ; Thu, 4 Apr 2024 07:59:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712217590; cv=none; b=aVsRNB1A8EIXrA4373gZDiTeuml8MFFIuQWY0WUpM13CsuaBCNJuLbo5VcyWXabWILXkGkbAV052sf9cFTyCc6J12tMfDCy+XM3ksum9IwelZq9mYF9TRp8Or4NSVtDmhkN0PuLvREsTbGoCbEqP646KgDLPt0/ZJBQmJHvGvIM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712217590; c=relaxed/simple; bh=6VQEKdOi8hityzEeY031NRE+HxpeOBcsP78gbB19eP4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=L0we+jSL7xq3wfSKNa1OoWqwc9GHQ59vHwoig/h7ytHXmCP1+xNay01rIdZ9fbGtXQoU3pvtHACZU6L4PMteVzWz+usiHYC5b1NBsTNNWtq8O7laCCv4F8Wu+2CX5dXjQliWz9Fd2iqgIw8hIAdpMAXBv1ygJt23vI73qdfPSCE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=Vhnz4xKv; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Vhnz4xKv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1712217587; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Q8qjQ9dmdVB2B2yrlfzMnrRDgO9DYDQN2xa+EkvT42A=; b=Vhnz4xKvM/1nXbGhFQ/q/uvj1BorA/ib80lm7XoKw8k35OznMplzwdoqNI0CGEFLB5VBrV g7RqCDeyz04a/0DeHty4iltmBU2QpzAd/zY0lLjok4l4MI/7Tm7OFcmL8ZZH5aYxriTJD5 Udw9M9yNwm9mKy+djG6jkPSs9EZx++0= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-197-ygA45I3yM9Ce2VrY_mmmVg-1; Thu, 04 Apr 2024 03:59:42 -0400 X-MC-Unique: ygA45I3yM9Ce2VrY_mmmVg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 988C9805AA4; Thu, 4 Apr 2024 07:59:40 +0000 (UTC) Received: from ksundara-mac.redhat.com (unknown [10.74.17.36]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3D03C200A386; Thu, 4 Apr 2024 07:59:33 +0000 (UTC) From: Karthik Sundaravel To: jesse.brandeburg@intel.com, wojciech.drewek@intel.com, sumang@marvell.com, jacob.e.keller@intel.com, anthony.l.nguyen@intel.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: pmenzel@molgen.mpg.de, jiri@resnulli.us, michal.swiatkowski@linux.intel.com, rjarry@redhat.com, aharivel@redhat.com, vchundur@redhat.com, ksundara@redhat.com, cfontain@redhat.com Subject: [PATCH v8] ice: Add get/set hw address for VFs using devlink commands Date: Thu, 4 Apr 2024 13:29:17 +0530 Message-Id: <20240404075917.4347-2-ksundara@redhat.com> In-Reply-To: <20240404075917.4347-1-ksundara@redhat.com> References: <20240404075917.4347-1-ksundara@redhat.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 X-Patchwork-Delegate: kuba@kernel.org Changing the MAC address of the VFs is currently unsupported via devlink. Add the function handlers to set and get the HW address for the VFs. Signed-off-by: Karthik Sundaravel --- drivers/net/ethernet/intel/ice/ice_devlink.c | 60 ++++++++++++++++++- drivers/net/ethernet/intel/ice/ice_sriov.c | 62 ++++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_sriov.h | 8 +++ 3 files changed, 129 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.c b/drivers/net/ethernet/intel/ice/ice_devlink.c index 80dc5445b50d..381c7411fcf7 100644 --- a/drivers/net/ethernet/intel/ice/ice_devlink.c +++ b/drivers/net/ethernet/intel/ice/ice_devlink.c @@ -1576,6 +1576,63 @@ void ice_devlink_destroy_pf_port(struct ice_pf *pf) devlink_port_unregister(&pf->devlink_port); } +/** + * ice_devlink_port_get_vf_fn_mac - .port_fn_hw_addr_get devlink handler + * @port: devlink port structure + * @hw_addr: MAC address of the port + * @hw_addr_len: length of MAC address + * @extack: extended netdev ack structure + * + * Callback for the devlink .port_fn_hw_addr_get operation + * Return: zero on success or an error code on failure. + */ + +static int ice_devlink_port_get_vf_fn_mac(struct devlink_port *port, + u8 *hw_addr, int *hw_addr_len, + struct netlink_ext_ack *extack) +{ + struct ice_vf *vf = container_of(port, struct ice_vf, devlink_port); + + ether_addr_copy(hw_addr, vf->dev_lan_addr); + *hw_addr_len = ETH_ALEN; + + return 0; +} + +/** + * ice_devlink_port_set_vf_fn_mac - .port_fn_hw_addr_set devlink handler + * @port: devlink port structure + * @hw_addr: MAC address of the port + * @hw_addr_len: length of MAC address + * @extack: extended netdev ack structure + * + * Callback for the devlink .port_fn_hw_addr_set operation + * Return: zero on success or an error code on failure. + */ +static int ice_devlink_port_set_vf_fn_mac(struct devlink_port *port, + const u8 *hw_addr, + int hw_addr_len, + struct netlink_ext_ack *extack) + +{ + struct devlink_port_attrs *attrs = &port->attrs; + struct devlink_port_pci_vf_attrs *pci_vf; + struct devlink *devlink = port->devlink; + struct ice_pf *pf; + u16 vf_id; + + pf = devlink_priv(devlink); + pci_vf = &attrs->pci_vf; + vf_id = pci_vf->vf; + + return ice_set_vf_fn_mac(pf, vf_id, hw_addr); +} + +static const struct devlink_port_ops ice_devlink_vf_port_ops = { + .port_fn_hw_addr_get = ice_devlink_port_get_vf_fn_mac, + .port_fn_hw_addr_set = ice_devlink_port_set_vf_fn_mac, +}; + /** * ice_devlink_create_vf_port - Create a devlink port for this VF * @vf: the VF to create a port for @@ -1611,7 +1668,8 @@ int ice_devlink_create_vf_port(struct ice_vf *vf) devlink_port_attrs_set(devlink_port, &attrs); devlink = priv_to_devlink(pf); - err = devlink_port_register(devlink, devlink_port, vsi->idx); + err = devlink_port_register_with_ops(devlink, devlink_port, + vsi->idx, &ice_devlink_vf_port_ops); if (err) { dev_err(dev, "Failed to create devlink port for VF %d, error %d\n", vf->vf_id, err); diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.c b/drivers/net/ethernet/intel/ice/ice_sriov.c index 31314e7540f8..20a0eb406c40 100644 --- a/drivers/net/ethernet/intel/ice/ice_sriov.c +++ b/drivers/net/ethernet/intel/ice/ice_sriov.c @@ -1216,6 +1216,68 @@ ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi) return ret; } +/** + * ice_set_vf_fn_mac + * @pf: PF to be configure + * @vf_id: VF identifier + * @mac: MAC address + * + * program VF MAC address + */ +int ice_set_vf_fn_mac(struct ice_pf *pf, u16 vf_id, const u8 *mac) +{ + struct device *dev; + struct ice_vf *vf; + int ret; + + dev = ice_pf_to_dev(pf); + if (is_multicast_ether_addr(mac)) { + dev_err(dev, "%pM not a valid unicast address\n", mac); + return -EINVAL; + } + + vf = ice_get_vf_by_id(pf, vf_id); + if (!vf) + return -EINVAL; + + /* nothing left to do, unicast MAC already set */ + if (ether_addr_equal(vf->dev_lan_addr, mac) && + ether_addr_equal(vf->hw_lan_addr, mac)) { + ret = 0; + goto out_put_vf; + } + + ret = ice_check_vf_ready_for_cfg(vf); + if (ret) + goto out_put_vf; + + mutex_lock(&vf->cfg_lock); + + /* VF is notified of its new MAC via the PF's response to the + * VIRTCHNL_OP_GET_VF_RESOURCES message after the VF has been reset + */ + ether_addr_copy(vf->dev_lan_addr, mac); + ether_addr_copy(vf->hw_lan_addr, mac); + if (is_zero_ether_addr(mac)) { + /* VF will send VIRTCHNL_OP_ADD_ETH_ADDR message with its MAC */ + vf->pf_set_mac = false; + dev_info(dev, "Removing MAC on VF %d. VF driver will be reinitialized\n", + vf->vf_id); + } else { + /* PF will add MAC rule for the VF */ + vf->pf_set_mac = true; + dev_info(dev, "Setting MAC %pM on VF %d. VF driver will be reinitialized\n", + mac, vf_id); + } + + ice_reset_vf(vf, ICE_VF_RESET_NOTIFY); + mutex_unlock(&vf->cfg_lock); + +out_put_vf: + ice_put_vf(vf); + return ret; +} + /** * ice_set_vf_mac * @netdev: network interface device structure diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.h b/drivers/net/ethernet/intel/ice/ice_sriov.h index 346cb2666f3a..afde25cd1c9f 100644 --- a/drivers/net/ethernet/intel/ice/ice_sriov.h +++ b/drivers/net/ethernet/intel/ice/ice_sriov.h @@ -28,6 +28,7 @@ #ifdef CONFIG_PCI_IOV void ice_process_vflr_event(struct ice_pf *pf); int ice_sriov_configure(struct pci_dev *pdev, int num_vfs); +int ice_set_vf_fn_mac(struct ice_pf *pf, u16 vf_id, const u8 *mac); int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac); int ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi); @@ -76,6 +77,13 @@ ice_sriov_configure(struct pci_dev __always_unused *pdev, return -EOPNOTSUPP; } +static inline int +ice_set_vf_fn_mac(struct ice_pf __always_unused *pf, + u16 __always_unused vf_id, const u8 __always_unused *mac) +{ + return -EOPNOTSUPP; +} + static inline int ice_set_vf_mac(struct net_device __always_unused *netdev, int __always_unused vf_id, u8 __always_unused *mac)