From patchwork Fri Sep 25 20:46:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacob Keller X-Patchwork-Id: 260184 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=-12.8 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 95034C4727E for ; Fri, 25 Sep 2020 20:47:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6620522211 for ; Fri, 25 Sep 2020 20:47:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727482AbgIYUrF (ORCPT ); Fri, 25 Sep 2020 16:47:05 -0400 Received: from mga07.intel.com ([134.134.136.100]:11644 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726689AbgIYUrF (ORCPT ); Fri, 25 Sep 2020 16:47:05 -0400 IronPort-SDR: x32C/dOsd+5oLZkJE0/VnXLM5wSEWAG9yQ3j/eKQVkRNa3a5JSdEs24P1c1AyTm6/IAycPF0PC H5kUQg8RBceA== X-IronPort-AV: E=McAfee;i="6000,8403,9755"; a="225800675" X-IronPort-AV: E=Sophos;i="5.77,303,1596524400"; d="scan'208";a="225800675" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2020 13:47:04 -0700 IronPort-SDR: IHHvl6N7WWlkMkUd++CflCuHsMMoPcBq8ipOAaOqXKdhpYZZMtWGk6Z7H98Hvy+fkgiz7xBkwu 4Kkupxyutq/Q== X-IronPort-AV: E=Sophos;i="5.77,303,1596524400"; d="scan'208";a="323531502" Received: from jekeller-desk.amr.corp.intel.com ([10.166.241.4]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2020 13:47:03 -0700 From: Jacob Keller To: netdev@vger.kernel.org Cc: Jacob Keller , Jakub Kicinski Subject: [net-next v9 4/5] netdevsim: add support for flash_update overwrite mask Date: Fri, 25 Sep 2020 13:46:08 -0700 Message-Id: <20200925204609.1929800-5-jacob.e.keller@intel.com> X-Mailer: git-send-email 2.28.0.497.g54e85e7af1ac In-Reply-To: <20200925204609.1929800-1-jacob.e.keller@intel.com> References: <20200925204609.1929800-1-jacob.e.keller@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The devlink interface recently gained support for a new "overwrite mask" parameter that allows specifying how various sub-sections of a flash component are modified when updating. Add support for this to netdevsim, to enable easily testing the interface. Make the allowed overwrite mask values controllable via a debugfs parameter. This enables testing a flow where the driver rejects an unsupportable overwrite mask. Signed-off-by: Jacob Keller Reviewed-by: Jakub Kicinski --- drivers/net/netdevsim/dev.c | 10 +++++++++- drivers/net/netdevsim/netdevsim.h | 1 + .../selftests/drivers/net/netdevsim/devlink.sh | 18 ++++++++++++++++++ 3 files changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c index 2d218afad375..56213ba151f6 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -203,6 +203,8 @@ static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev) return PTR_ERR(nsim_dev->ports_ddir); debugfs_create_bool("fw_update_status", 0600, nsim_dev->ddir, &nsim_dev->fw_update_status); + debugfs_create_u32("fw_update_overwrite_mask", 0600, nsim_dev->ddir, + &nsim_dev->fw_update_overwrite_mask); debugfs_create_u32("max_macs", 0600, nsim_dev->ddir, &nsim_dev->max_macs); debugfs_create_bool("test1", 0600, nsim_dev->ddir, @@ -749,6 +751,9 @@ static int nsim_dev_flash_update(struct devlink *devlink, struct nsim_dev *nsim_dev = devlink_priv(devlink); int i; + if ((params->overwrite_mask & ~nsim_dev->fw_update_overwrite_mask) != 0) + return -EOPNOTSUPP; + if (nsim_dev->fw_update_status) { devlink_flash_update_begin_notify(devlink); devlink_flash_update_status_notify(devlink, @@ -879,7 +884,8 @@ nsim_dev_devlink_trap_policer_counter_get(struct devlink *devlink, } static const struct devlink_ops nsim_dev_devlink_ops = { - .supported_flash_update_params = DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT, + .supported_flash_update_params = DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT | + DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK, .reload_down = nsim_dev_reload_down, .reload_up = nsim_dev_reload_up, .info_get = nsim_dev_info_get, @@ -994,6 +1000,7 @@ static int nsim_dev_reload_create(struct nsim_dev *nsim_dev, INIT_LIST_HEAD(&nsim_dev->port_list); mutex_init(&nsim_dev->port_list_lock); nsim_dev->fw_update_status = true; + nsim_dev->fw_update_overwrite_mask = 0; nsim_dev->fib_data = nsim_fib_create(devlink, extack); if (IS_ERR(nsim_dev->fib_data)) @@ -1052,6 +1059,7 @@ int nsim_dev_probe(struct nsim_bus_dev *nsim_bus_dev) INIT_LIST_HEAD(&nsim_dev->port_list); mutex_init(&nsim_dev->port_list_lock); nsim_dev->fw_update_status = true; + nsim_dev->fw_update_overwrite_mask = 0; nsim_dev->max_macs = NSIM_DEV_MAX_MACS_DEFAULT; nsim_dev->test1 = NSIM_DEV_TEST1_DEFAULT; spin_lock_init(&nsim_dev->fa_cookie_lock); diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h index 0c86561e6d8d..0a1b28aea894 100644 --- a/drivers/net/netdevsim/netdevsim.h +++ b/drivers/net/netdevsim/netdevsim.h @@ -196,6 +196,7 @@ struct nsim_dev { struct list_head port_list; struct mutex port_list_lock; /* protects port list */ bool fw_update_status; + u32 fw_update_overwrite_mask; u32 max_macs; bool test1; bool dont_allow_reload; diff --git a/tools/testing/selftests/drivers/net/netdevsim/devlink.sh b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh index 1e7541688978..40909c254365 100755 --- a/tools/testing/selftests/drivers/net/netdevsim/devlink.sh +++ b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh @@ -26,6 +26,24 @@ fw_flash_test() devlink dev flash $DL_HANDLE file dummy component fw.mgmt check_err $? "Failed to flash with component attribute" + devlink dev flash $DL_HANDLE file dummy overwrite settings + check_fail $? "Flash with overwrite settings should be rejected" + + echo "1"> $DEBUGFS_DIR/fw_update_overwrite_mask + check_err $? "Failed to change allowed overwrite mask" + + devlink dev flash $DL_HANDLE file dummy overwrite settings + check_err $? "Failed to flash with settings overwrite enabled" + + devlink dev flash $DL_HANDLE file dummy overwrite identifiers + check_fail $? "Flash with overwrite settings should be identifiers" + + echo "3"> $DEBUGFS_DIR/fw_update_overwrite_mask + check_err $? "Failed to change allowed overwrite mask" + + devlink dev flash $DL_HANDLE file dummy overwrite identifiers overwrite settings + check_err $? "Failed to flash with settings and identifiers overwrite enabled" + echo "n"> $DEBUGFS_DIR/fw_update_status check_err $? "Failed to disable status updates" From patchwork Fri Sep 25 20:46:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacob Keller X-Patchwork-Id: 260183 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=-12.8 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 471A1C47420 for ; Fri, 25 Sep 2020 20:47:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 061482086A for ; Fri, 25 Sep 2020 20:47:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728423AbgIYUrH (ORCPT ); Fri, 25 Sep 2020 16:47:07 -0400 Received: from mga07.intel.com ([134.134.136.100]:11644 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726636AbgIYUrF (ORCPT ); Fri, 25 Sep 2020 16:47:05 -0400 IronPort-SDR: sxTIBpFqAPeDQiMgsmCgbD5z6OImRfRRtDEei9FnfQNWOgTaJ2TjMifJHaRSwGUE0wR0n+w5l1 uL5s07tAo5bw== X-IronPort-AV: E=McAfee;i="6000,8403,9755"; a="225800676" X-IronPort-AV: E=Sophos;i="5.77,303,1596524400"; d="scan'208";a="225800676" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2020 13:47:04 -0700 IronPort-SDR: CKrPvhSiTanpzQB++xk0Jhs346IOZZ/eJuWwLg89SyIG/zl0eWqBbsQgzoyoJOrcGl016XPBOh sQQiseqP2ilQ== X-IronPort-AV: E=Sophos;i="5.77,303,1596524400"; d="scan'208";a="323531504" Received: from jekeller-desk.amr.corp.intel.com ([10.166.241.4]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2020 13:47:03 -0700 From: Jacob Keller To: netdev@vger.kernel.org Cc: Jacob Keller , Jakub Kicinski Subject: [net-next v9 5/5] ice: add support for flash update overwrite mask Date: Fri, 25 Sep 2020 13:46:09 -0700 Message-Id: <20200925204609.1929800-6-jacob.e.keller@intel.com> X-Mailer: git-send-email 2.28.0.497.g54e85e7af1ac In-Reply-To: <20200925204609.1929800-1-jacob.e.keller@intel.com> References: <20200925204609.1929800-1-jacob.e.keller@intel.com> MIME-Version: 1.0 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 c3d61c246f0b..e17b44059eae 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 292d87b996ab..142123155a0f 100644 --- a/drivers/net/ethernet/intel/ice/ice_fw_update.c +++ b/drivers/net/ethernet/intel/ice/ice_fw_update.c @@ -625,6 +625,7 @@ 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 @@ -638,7 +639,7 @@ 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; @@ -646,13 +647,24 @@ 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);