From patchwork Mon Mar 6 16:31:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenghua Yu X-Patchwork-Id: 13161812 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B6F8C6FD1C for ; Mon, 6 Mar 2023 16:46:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230419AbjCFQqC (ORCPT ); Mon, 6 Mar 2023 11:46:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60358 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230190AbjCFQoW (ORCPT ); Mon, 6 Mar 2023 11:44:22 -0500 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CBFC735242; Mon, 6 Mar 2023 08:43:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1678121038; x=1709657038; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=f44hJzsv5G4du9Q7bT5CpVrZ9HY7StygNVQkHIRMAYU=; b=HwdY0UeVtGF8AZxQcXVSPqJ+94zU4ZEiJmTmswOf+kGT28pXKzroDX47 C5Gz7Rh+BSdSfB7sTAloM3IE9mBo52OOtznYT6dRTVuY06erhnhLIYVcv Bu4w2YFpoeukfrYU1tBUrMRxpGoGmWkp/mHkVh5p9ARiHvpFgGCZ6oejD EShO29mYLc6M6o9j8JRc2blTk8akXqlSi6DcBYfst5SsQt1A8UGj2mDfM 266jMAV2+xTI0RZtFY7WgMaVbPeQXsMW9KB4nn7ust/hZebN/zmT1Wt0L mg7nlXL2JRAv7tpyPKT8J1Xwwhtc1cvD37MvllL3a7bxDqj5gzJAArOvX w==; X-IronPort-AV: E=McAfee;i="6500,9779,10641"; a="398181155" X-IronPort-AV: E=Sophos;i="5.98,238,1673942400"; d="scan'208";a="398181155" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2023 08:31:57 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10641"; a="669504513" X-IronPort-AV: E=Sophos;i="5.98,238,1673942400"; d="scan'208";a="669504513" Received: from fyu1.sc.intel.com ([172.25.103.126]) by orsmga007.jf.intel.com with ESMTP; 06 Mar 2023 08:31:56 -0800 From: Fenghua Yu To: "Vinod Koul" , "Dave Jiang" Cc: dmaengine@vger.kernel.org, "linux-kernel" , Tony Zhu , Fenghua Yu Subject: [PATCH v2 06/16] dmaengine: idxd: add per DSA wq workqueue for processing cr faults Date: Mon, 6 Mar 2023 08:31:28 -0800 Message-Id: <20230306163138.587484-7-fenghua.yu@intel.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230306163138.587484-1-fenghua.yu@intel.com> References: <20230306163138.587484-1-fenghua.yu@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org From: Dave Jiang Add a workqueue for user submitted completion record fault processing. The workqueue creation and destruction lifetime will be tied to the user sub-driver since it will only be used when the wq is a user type. Tested-by: Tony Zhu Signed-off-by: Dave Jiang Co-developed-by: Fenghua Yu Signed-off-by: Fenghua Yu --- drivers/dma/idxd/cdev.c | 11 +++++++++++ drivers/dma/idxd/idxd.h | 1 + 2 files changed, 12 insertions(+) diff --git a/drivers/dma/idxd/cdev.c b/drivers/dma/idxd/cdev.c index 674bfefca088..cbe29e1a6a44 100644 --- a/drivers/dma/idxd/cdev.c +++ b/drivers/dma/idxd/cdev.c @@ -330,6 +330,13 @@ static int idxd_user_drv_probe(struct idxd_dev *idxd_dev) } mutex_lock(&wq->wq_lock); + + wq->wq = create_workqueue(dev_name(wq_confdev(wq))); + if (!wq->wq) { + rc = -ENOMEM; + goto wq_err; + } + wq->type = IDXD_WQT_USER; rc = drv_enable_wq(wq); if (rc < 0) @@ -348,7 +355,9 @@ static int idxd_user_drv_probe(struct idxd_dev *idxd_dev) err_cdev: drv_disable_wq(wq); err: + destroy_workqueue(wq->wq); wq->type = IDXD_WQT_NONE; +wq_err: mutex_unlock(&wq->wq_lock); return rc; } @@ -361,6 +370,8 @@ static void idxd_user_drv_remove(struct idxd_dev *idxd_dev) idxd_wq_del_cdev(wq); drv_disable_wq(wq); wq->type = IDXD_WQT_NONE; + destroy_workqueue(wq->wq); + wq->wq = NULL; mutex_unlock(&wq->wq_lock); } diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h index b923b90b7299..6e56361ae658 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -185,6 +185,7 @@ struct idxd_wq { struct idxd_dev idxd_dev; struct idxd_cdev *idxd_cdev; struct wait_queue_head err_queue; + struct workqueue_struct *wq; struct idxd_device *idxd; int id; struct idxd_irq_entry ie;