From patchwork Fri Sep 18 00:45:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacob Keller X-Patchwork-Id: 260687 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 D66EAC43463 for ; Fri, 18 Sep 2020 00:46:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9AB5A20853 for ; Fri, 18 Sep 2020 00:46:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726359AbgIRAq3 (ORCPT ); Thu, 17 Sep 2020 20:46:29 -0400 Received: from mga18.intel.com ([134.134.136.126]:14361 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725987AbgIRAq2 (ORCPT ); Thu, 17 Sep 2020 20:46:28 -0400 IronPort-SDR: MWgc8pmn0PlwQzkjeJ/LC2h+pw1RlvzpKnmcn/ghOn3Da5fQmZ9IA31Zfj9ViLGJ1xaCZ2vaTk ssgtM8TVvggg== X-IronPort-AV: E=McAfee;i="6000,8403,9747"; a="147569977" X-IronPort-AV: E=Sophos;i="5.77,272,1596524400"; d="scan'208";a="147569977" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Sep 2020 17:46:25 -0700 IronPort-SDR: iHGOO7I91WIbvHFyvJIq0i1nJBETyDm9YRGbnIUVVCLa0ZtV2H9q+XtiyQ7hbDyyfa23PWBR5S f0tNN1aSiLDg== X-IronPort-AV: E=Sophos;i="5.77,272,1596524400"; d="scan'208";a="380728921" Received: from jekeller-desk.amr.corp.intel.com ([10.166.241.4]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Sep 2020 17:46:25 -0700 From: Jacob Keller To: netdev@vger.kernel.org Cc: Jacob Keller , Jakub Kicinski Subject: [net-next v6 4/5] netdevsim: add support for flash_update overwrite mask Date: Thu, 17 Sep 2020 17:45:28 -0700 Message-Id: <20200918004529.533989-5-jacob.e.keller@intel.com> X-Mailer: git-send-email 2.28.0.497.g54e85e7af1ac In-Reply-To: <20200918004529.533989-1-jacob.e.keller@intel.com> References: <20200918004529.533989-1-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 ebfc4a698809..74a869fbaa67 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -201,6 +201,8 @@ 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, @@ -747,6 +749,9 @@ 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, @@ -875,7 +880,8 @@ 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, @@ -990,6 +996,7 @@ 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)) @@ -1048,6 +1055,7 @@ 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 284f7092241d..48ba33501450 100644 --- a/drivers/net/netdevsim/netdevsim.h +++ b/drivers/net/netdevsim/netdevsim.h @@ -185,6 +185,7 @@ 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"