From patchwork Wed Jan 3 04:07:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mun Chun Yep X-Patchwork-Id: 759746 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (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 DD92D171B4 for ; Wed, 3 Jan 2024 04:09:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="hYXzm5jk" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1704254977; x=1735790977; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=l/PoLEwxmD2BewfzrG6b3EuqGSgEHqHfJWnKrVevKqg=; b=hYXzm5jku/avXOCuICBthox4VRYybHoxuiZrLuiz1iuyTwyQZVlnGFnn repQrNelPI3tF6SulzGdl0yv7DZ3ajFzlg38XOfdRB+lkVtXM8K+xSKrE kPmgvvY3kpM+MIHrTCPIOJS7dsORaEDxd9CBzTnRtmOufWvWuRaXpB+tK h8tQwKSAWXIxjo5QJ9Q6cEdX0y52Jv76PzK57qjIgHq1kl7MT+ZVlFFk9 UQ2cGpg1I6hrqTPcXs0q20SXPQ/kCO377OZs8cAbrHspuSWge5MKkF3z7 336sazBUoRbZA3/RhkxRVzJ7mFxwGwhlNlT9lxgPcRRHR8bT27RYT04IE g==; X-IronPort-AV: E=McAfee;i="6600,9927,10941"; a="3725516" X-IronPort-AV: E=Sophos;i="6.04,326,1695711600"; d="scan'208";a="3725516" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jan 2024 20:09:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10941"; a="1111241908" X-IronPort-AV: E=Sophos;i="6.04,326,1695711600"; d="scan'208";a="1111241908" Received: from myep-mobl1.png.intel.com ([10.107.5.97]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jan 2024 20:09:33 -0800 From: Mun Chun Yep To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, Zhou Furong , Ahsan Atta , Markas Rapoportas Subject: [PATCH 2/9] crypto: qat - add fatal error notify method Date: Wed, 3 Jan 2024 12:07:15 +0800 Message-Id: <20240103040722.14467-3-mun.chun.yep@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240103040722.14467-1-mun.chun.yep@intel.com> References: <20240103040722.14467-1-mun.chun.yep@intel.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Zhou Furong Add error notify method to report a fatal error event to all the subsystems registered. In addition expose an API, adf_notify_fatal_error(), that allows to trigger a fatal error notification asynchronously in the context of a workqueue. This will be invoked when a fatal error is detected by the ISR or through Heartbeat. Signed-off-by: Zhou Furong Reviewed-by: Ahsan Atta Reviewed-by: Markas Rapoportas --- drivers/crypto/intel/qat/qat_common/adf_aer.c | 30 +++++++++++++++++++ .../intel/qat/qat_common/adf_common_drv.h | 3 ++ .../crypto/intel/qat/qat_common/adf_init.c | 12 ++++++++ 3 files changed, 45 insertions(+) diff --git a/drivers/crypto/intel/qat/qat_common/adf_aer.c b/drivers/crypto/intel/qat/qat_common/adf_aer.c index a39e70bd4b21..22a43b4b8315 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_aer.c +++ b/drivers/crypto/intel/qat/qat_common/adf_aer.c @@ -8,6 +8,11 @@ #include "adf_accel_devices.h" #include "adf_common_drv.h" +struct adf_fatal_error_data { + struct adf_accel_dev *accel_dev; + struct work_struct work; +}; + static struct workqueue_struct *device_reset_wq; static pci_ers_result_t adf_error_detected(struct pci_dev *pdev, @@ -171,6 +176,31 @@ const struct pci_error_handlers adf_err_handler = { }; EXPORT_SYMBOL_GPL(adf_err_handler); +static void adf_notify_fatal_error_worker(struct work_struct *work) +{ + struct adf_fatal_error_data *wq_data = + container_of(work, struct adf_fatal_error_data, work); + struct adf_accel_dev *accel_dev = wq_data->accel_dev; + + adf_error_notifier(accel_dev); + kfree(wq_data); +} + +int adf_notify_fatal_error(struct adf_accel_dev *accel_dev) +{ + struct adf_fatal_error_data *wq_data; + + wq_data = kzalloc(sizeof(*wq_data), GFP_ATOMIC); + if (!wq_data) + return -ENOMEM; + + wq_data->accel_dev = accel_dev; + INIT_WORK(&wq_data->work, adf_notify_fatal_error_worker); + adf_misc_wq_queue_work(&wq_data->work); + + return 0; +} + int adf_init_aer(void) { device_reset_wq = alloc_workqueue("qat_device_reset_wq", diff --git a/drivers/crypto/intel/qat/qat_common/adf_common_drv.h b/drivers/crypto/intel/qat/qat_common/adf_common_drv.h index 0baae42deb3a..8c062d5a8db2 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_common_drv.h +++ b/drivers/crypto/intel/qat/qat_common/adf_common_drv.h @@ -40,6 +40,7 @@ enum adf_event { ADF_EVENT_SHUTDOWN, ADF_EVENT_RESTARTING, ADF_EVENT_RESTARTED, + ADF_EVENT_FATAL_ERROR, }; struct service_hndl { @@ -60,6 +61,8 @@ int adf_dev_restart(struct adf_accel_dev *accel_dev); void adf_devmgr_update_class_index(struct adf_hw_device_data *hw_data); void adf_clean_vf_map(bool); +int adf_notify_fatal_error(struct adf_accel_dev *accel_dev); +void adf_error_notifier(struct adf_accel_dev *accel_dev); int adf_devmgr_add_dev(struct adf_accel_dev *accel_dev, struct adf_accel_dev *pf); void adf_devmgr_rm_dev(struct adf_accel_dev *accel_dev, diff --git a/drivers/crypto/intel/qat/qat_common/adf_init.c b/drivers/crypto/intel/qat/qat_common/adf_init.c index f43ae9111553..74f0818c0703 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_init.c +++ b/drivers/crypto/intel/qat/qat_common/adf_init.c @@ -433,6 +433,18 @@ int adf_dev_restarted_notify(struct adf_accel_dev *accel_dev) return 0; } +void adf_error_notifier(struct adf_accel_dev *accel_dev) +{ + struct service_hndl *service; + + list_for_each_entry(service, &service_table, list) { + if (service->event_hld(accel_dev, ADF_EVENT_FATAL_ERROR)) + dev_err(&GET_DEV(accel_dev), + "Failed to send error event to %s.\n", + service->name); + } +} + static int adf_dev_shutdown_cache_cfg(struct adf_accel_dev *accel_dev) { char services[ADF_CFG_MAX_VAL_LEN_IN_BYTES] = {0};