From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id A7C59A0547; Fri, 28 May 2021 15:56:16 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 96DAC41105; Fri, 28 May 2021 15:56:08 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by mails.dpdk.org (Postfix) with ESMTP id ECC5340698 for ; Fri, 28 May 2021 15:56:04 +0200 (CEST) IronPort-SDR: Ty7HqhwewygFv6Q6jkhaZZ7vbLT6Ws5NlG9yXh1wgN14UXYx2lJbvPMLSvyXgNmgpF0aGusJg8 EKcDwcEmXCAQ== X-IronPort-AV: E=McAfee;i="6200,9189,9998"; a="183301279" X-IronPort-AV: E=Sophos;i="5.83,229,1616482800"; d="scan'208";a="183301279" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 May 2021 06:56:04 -0700 IronPort-SDR: 9TsXuX1nuC7uYd1QZYg3Fukik8/qTTBYqzRtGmf4T3UF1eOQybKG1Da7dX576P3y4dII2TU1d5 cBtMGSsAjL0g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,229,1616482800"; d="scan'208";a="477934781" Received: from silpixa00401026.ir.intel.com ([10.243.23.108]) by orsmga001.jf.intel.com with ESMTP; 28 May 2021 06:56:03 -0700 From: Kevin Laatz To: dev@dpdk.org Cc: bruce.richardson@intel.com, Kevin Laatz Date: Fri, 28 May 2021 14:55:59 +0100 Message-Id: <20210528135559.344815-3-kevin.laatz@intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210528135559.344815-1-kevin.laatz@intel.com> References: <20210528131902.344423-1-kevin.laatz@intel.com> <20210528135559.344815-1-kevin.laatz@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v3 2/2] raw/ioat: add device reset to python script X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Currently once a device is configured, the user does not have the ability to reset the device via the script. This patch adds a device reset option to the script. For example "$dpdk_idxd_cfg.py 0 --reset" would reset device 0. Signed-off-by: Kevin Laatz Acked-by: Bruce Richardson --- v3: remove printing if the script running config or reset --- drivers/raw/ioat/dpdk_idxd_cfg.py | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/raw/ioat/dpdk_idxd_cfg.py b/drivers/raw/ioat/dpdk_idxd_cfg.py index ad8393a645..83ef4817db 100755 --- a/drivers/raw/ioat/dpdk_idxd_cfg.py +++ b/drivers/raw/ioat/dpdk_idxd_cfg.py @@ -29,6 +29,12 @@ def write_values(self, values): f.write(str(contents)) +def reset_device(dsa_id): + "Reset the DSA device and all its queues" + drv_dir = SysfsDir("/sys/bus/dsa/drivers/dsa") + drv_dir.write_values({"unbind": f"dsa{dsa_id}"}) + + def get_pci_dir(pci): "Search for the sysfs directory of the PCI device" base_dir = '/sys/bus/pci/devices/' @@ -95,11 +101,16 @@ def main(args): arg_p.add_argument('--name-prefix', metavar='prefix', dest='prefix', default="dpdk", help="Prefix for workqueue name to mark for DPDK use [default: 'dpdk']") + arg_p.add_argument('--reset', action='store_true', + help="Reset DSA device and its queues") parsed_args = arg_p.parse_args(args[1:]) dsa_id = parsed_args.dsa_id dsa_id = get_dsa_id(dsa_id) if ':' in dsa_id else dsa_id - configure_dsa(dsa_id, parsed_args.q, parsed_args.prefix) + if parsed_args.reset: + reset_device(dsa_id) + else: + configure_dsa(dsa_id, parsed_args.q, parsed_args.prefix) if __name__ == "__main__": -- 2.30.2