From patchwork Wed Sep 9 22:26:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacob Keller X-Patchwork-Id: 261217 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD1E7C433E2 for ; Wed, 9 Sep 2020 22:28:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 826EF21D7E for ; Wed, 9 Sep 2020 22:28:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728970AbgIIW2H (ORCPT ); Wed, 9 Sep 2020 18:28:07 -0400 Received: from mga07.intel.com ([134.134.136.100]:30343 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727782AbgIIW1x (ORCPT ); Wed, 9 Sep 2020 18:27:53 -0400 IronPort-SDR: zoXVtdJEkZHfbyIXU2Wo5bKuFIPjcAraC6ReR4M10yohAPAQmHMZDKOG+IgxbXzG/c9vOidle3 4ff0iBTzWeZg== X-IronPort-AV: E=McAfee;i="6000,8403,9739"; a="222627350" X-IronPort-AV: E=Sophos;i="5.76,410,1592895600"; d="scan'208";a="222627350" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Sep 2020 15:27:48 -0700 IronPort-SDR: +mictdA8gtMi+sj8kwmwwMHj5uYos5l0J95LZhuAm7/FayLJHNOhmS449YUab9OOQr2bW+mKn5 lrEd1LMxfpIg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.76,410,1592895600"; d="scan'208";a="285017353" Received: from jekeller-desk.amr.corp.intel.com ([10.166.241.4]) by fmsmga007.fm.intel.com with ESMTP; 09 Sep 2020 15:27:48 -0700 From: Jacob Keller To: netdev@vger.kernel.org Cc: Jacob Keller Subject: [net-next v4 5/5] ice: add support for flash update overwrite mask Date: Wed, 9 Sep 2020 15:26:53 -0700 Message-Id: <20200909222653.32994-6-jacob.e.keller@intel.com> X-Mailer: git-send-email 2.28.0.218.ge27853923b9d.dirty In-Reply-To: <20200909222653.32994-1-jacob.e.keller@intel.com> References: <20200909222653.32994-1-jacob.e.keller@intel.com> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Support the recently added DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK parameter in the ice flash update handler. Convert the overwrite mask bitfield into the appropriate preservation level used by the firmware when updating. Because there is no equivalent preservation level for overwriting only identifiers, this combination is rejected by the driver as not supported with an appropriate extended ACK message. Signed-off-by: Jacob Keller Reviewed-by: Jakub Kicinski --- Documentation/networking/devlink/ice.rst | 31 +++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_devlink.c | 19 +++++++++++- .../net/ethernet/intel/ice/ice_fw_update.c | 16 ++++++++-- .../net/ethernet/intel/ice/ice_fw_update.h | 2 +- 4 files changed, 64 insertions(+), 4 deletions(-) diff --git a/Documentation/networking/devlink/ice.rst b/Documentation/networking/devlink/ice.rst index 237848d56f9b..8eb50ba41f1a 100644 --- a/Documentation/networking/devlink/ice.rst +++ b/Documentation/networking/devlink/ice.rst @@ -81,6 +81,37 @@ The ``ice`` driver reports the following versions - 0xee16ced7 - The first 4 bytes of the hash of the netlist module contents. +Flash Update +============ + +The ``ice`` driver implements support for flash update using the +``devlink-flash`` interface. It supports updating the device flash using a +combined flash image that contains the ``fw.mgmt``, ``fw.undi``, and +``fw.netlist`` components. + +.. list-table:: List of supported overwrite modes + :widths: 5 95 + + * - Bits + - Behavior + * - ``DEVLINK_FLASH_OVERWRITE_SETTINGS`` + - Do not preserve settings stored in the flash components being + updated. This includes overwriting the port configuration that + determines the number of physical functions the device will + initialize with. + * - ``DEVLINK_FLASH_OVERWRITE_SETTINGS`` and ``DEVLINK_FLASH_OVERWRITE_IDENTIFIERS`` + - Do not preserve either settings or identifiers. Overwrite everything + in the flash with the contents from the provided image, without + performing any preservation. This includes overwriting device + identifying fields such as the MAC address, VPD area, and device + serial number. It is expected that this combination be used with an + image customized for the specific device. + +The ice hardware does not support overwriting only identifiers while +preserving settings, and thus ``DEVLINK_FLASH_OVERWRITE_IDENTIFIERS`` on its +own will be rejected. If no overwrite mask is provided, the firmware will be +instructed to preserve all settings and identifying fields when updating. + Regions ======= diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.c b/drivers/net/ethernet/intel/ice/ice_devlink.c index 4f8f9e229080..c2726932b2d1 100644 --- a/drivers/net/ethernet/intel/ice/ice_devlink.c +++ b/drivers/net/ethernet/intel/ice/ice_devlink.c @@ -250,8 +250,24 @@ ice_devlink_flash_update(struct devlink *devlink, struct device *dev = &pf->pdev->dev; struct ice_hw *hw = &pf->hw; const struct firmware *fw; + u8 preservation; int err; + if (!params->overwrite_mask) { + /* preserve all settings and identifiers */ + preservation = ICE_AQC_NVM_PRESERVE_ALL; + } else if (params->overwrite_mask == DEVLINK_FLASH_OVERWRITE_SETTINGS) { + /* overwrite settings, but preserve the vital device identifiers */ + preservation = ICE_AQC_NVM_PRESERVE_SELECTED; + } else if (params->overwrite_mask == (DEVLINK_FLASH_OVERWRITE_SETTINGS | + DEVLINK_FLASH_OVERWRITE_IDENTIFIERS)) { + /* overwrite both settings and identifiers, preserve nothing */ + preservation = ICE_AQC_NVM_NO_PRESERVATION; + } else { + NL_SET_ERR_MSG_MOD(extack, "Requested overwrite mask is not supported"); + return -EOPNOTSUPP; + } + if (!hw->dev_caps.common_cap.nvm_unified_update) { NL_SET_ERR_MSG_MOD(extack, "Current firmware does not support unified update"); return -EOPNOTSUPP; @@ -269,7 +285,7 @@ ice_devlink_flash_update(struct devlink *devlink, devlink_flash_update_begin_notify(devlink); devlink_flash_update_status_notify(devlink, "Preparing to flash", NULL, 0, 0); - err = ice_flash_pldm_image(pf, fw, extack); + err = ice_flash_pldm_image(pf, fw, preservation, extack); devlink_flash_update_end_notify(devlink); release_firmware(fw); @@ -278,6 +294,7 @@ ice_devlink_flash_update(struct devlink *devlink, } static const struct devlink_ops ice_devlink_ops = { + .supported_flash_update_params = DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK, .info_get = ice_devlink_info_get, .flash_update = ice_devlink_flash_update, }; diff --git a/drivers/net/ethernet/intel/ice/ice_fw_update.c b/drivers/net/ethernet/intel/ice/ice_fw_update.c index deaefe00c9c0..c81273000d88 100644 --- a/drivers/net/ethernet/intel/ice/ice_fw_update.c +++ b/drivers/net/ethernet/intel/ice/ice_fw_update.c @@ -630,6 +630,7 @@ static const struct pldmfw_ops ice_fwu_ops = { * ice_flash_pldm_image - Write a PLDM-formatted firmware image to the device * @pf: private device driver structure * @fw: firmware object pointing to the relevant firmware file + * @preservation: preservation level to request from firmware * @extack: netlink extended ACK structure * * Parse the data for a given firmware file, verifying that it is a valid PLDM @@ -643,7 +644,7 @@ static const struct pldmfw_ops ice_fwu_ops = { * Returns: zero on success or a negative error code on failure. */ int ice_flash_pldm_image(struct ice_pf *pf, const struct firmware *fw, - struct netlink_ext_ack *extack) + u8 preservation, struct netlink_ext_ack *extack) { struct device *dev = ice_pf_to_dev(pf); struct ice_hw *hw = &pf->hw; @@ -651,13 +652,24 @@ int ice_flash_pldm_image(struct ice_pf *pf, const struct firmware *fw, enum ice_status status; int err; + switch (preservation) { + case ICE_AQC_NVM_PRESERVE_ALL: + case ICE_AQC_NVM_PRESERVE_SELECTED: + case ICE_AQC_NVM_NO_PRESERVATION: + case ICE_AQC_NVM_FACTORY_DEFAULT: + break; + default: + WARN(1, "Unexpected preservation level request %u", preservation); + return -EINVAL; + } + memset(&priv, 0, sizeof(priv)); priv.context.ops = &ice_fwu_ops; priv.context.dev = dev; priv.extack = extack; priv.pf = pf; - priv.activate_flags = ICE_AQC_NVM_PRESERVE_ALL; + priv.activate_flags = preservation; status = ice_acquire_nvm(hw, ICE_RES_WRITE); if (status) { diff --git a/drivers/net/ethernet/intel/ice/ice_fw_update.h b/drivers/net/ethernet/intel/ice/ice_fw_update.h index 79472cc618b4..c6390f6851ff 100644 --- a/drivers/net/ethernet/intel/ice/ice_fw_update.h +++ b/drivers/net/ethernet/intel/ice/ice_fw_update.h @@ -5,7 +5,7 @@ #define _ICE_FW_UPDATE_H_ int ice_flash_pldm_image(struct ice_pf *pf, const struct firmware *fw, - struct netlink_ext_ack *extack); + u8 preservation, struct netlink_ext_ack *extack); int ice_check_for_pending_update(struct ice_pf *pf, const char *component, struct netlink_ext_ack *extack);