From patchwork Fri Aug 16 13:59:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 13766355 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 D6F4F1BDA85; Fri, 16 Aug 2024 14:00:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723816803; cv=none; b=A/3kumCgpJXCcAKBZmwbSPQP0YvisSrTdHLzh3Rl+Cj7VPFN8dscgjfNFmNAVDP4I7MwtwTVIZ2pPfqspRoQ3hODTa5NF4VW1FGY81k4cQ7h/vgDU/fxMjsa9WFPa/4QPweTQuoFlLbYcWCAbW9bdIGI9bsy2I26O0L5O8ks1Js= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723816803; c=relaxed/simple; bh=Zo1dZh5pzHpeeydz3y04EF5edS3G2yB/CM8mLx26TMA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=h1qRzdviKdHgNd96heCOE4a4Uedi1PwssdJnt1GxbOr0hYMWCb9ebKoswUkiptZKcxO3vWpsnUUnZNW3XJdDGP6ZhFcU3o/sAfs3pRRL3cZlgNOrhoRS4pWnvWa41syzBBSasUKr7MB9NtZxvU2rmv6Y38CLtZRT5PhNkrioVjE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=ntwaOafp; arc=none smtp.client-ip=192.198.163.15 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="ntwaOafp" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1723816802; x=1755352802; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=Zo1dZh5pzHpeeydz3y04EF5edS3G2yB/CM8mLx26TMA=; b=ntwaOafp97QJiJD605xijmWVVeomguRIRXVjXm6J62J7OydsyP9HFWP2 tdopYHjAuJooWW6Z2JJaaHWpF/NIZQUorl4J8q5YgloSHGFWqa4j0wOP4 L9nn52sa97rtCkP75thjrs5w9nZcw+30HX1y2X12RywmZ1F0zpwXkMywE AWMPDC+CvGVU+pChkExwmW2Q661I4fpciFEoufcs1Gx0ktLBm/LVc/gWQ C08TgBkRBEZ/vv6A1TAW29OmdewgR9H0ibK4Ic74GQ+IWUY72yGWy0slw Lu/i4j8AJDkFpLUa470mcBzbZ+oPZxzHYemlE5pJ6WcOYk6+ioBHlCjol Q==; X-CSE-ConnectionGUID: ZJTwEX79RjCxKa7zgk+d/A== X-CSE-MsgGUID: yuyKeXoEQKiA6qnIZv9t9w== X-IronPort-AV: E=McAfee;i="6700,10204,11166"; a="22272749" X-IronPort-AV: E=Sophos;i="6.10,151,1719903600"; d="scan'208";a="22272749" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2024 07:00:01 -0700 X-CSE-ConnectionGUID: xyrRTVkkSl+0LhBrzebYXw== X-CSE-MsgGUID: IIqi6/ZQQ7Sj/Zm+FOLXNw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,151,1719903600"; d="scan'208";a="90411076" Received: from iweiny-mobl.amr.corp.intel.com (HELO localhost) ([10.125.111.52]) by orviesa002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2024 07:00:01 -0700 From: Ira Weiny Date: Fri, 16 Aug 2024 08:59:52 -0500 Subject: [PATCH v2 04/25] cxl/pci: Delay event buffer allocation Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240816-dcd-type2-upstream-v2-4-20189a10ad7d@intel.com> References: <20240816-dcd-type2-upstream-v2-0-20189a10ad7d@intel.com> In-Reply-To: <20240816-dcd-type2-upstream-v2-0-20189a10ad7d@intel.com> To: Dave Jiang , Fan Ni , Jonathan Cameron , Navneet Singh Cc: Dan Williams , Davidlohr Bueso , Alison Schofield , Vishal Verma , Ira Weiny , linux-btrfs@vger.kernel.org, linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.13-dev-2d940 X-Developer-Signature: v=1; a=ed25519-sha256; t=1723816790; l=1342; i=ira.weiny@intel.com; s=20221211; h=from:subject:message-id; bh=Zo1dZh5pzHpeeydz3y04EF5edS3G2yB/CM8mLx26TMA=; b=m0c9vfIqai24h7En9QehZLv94Qt2R152vZHbIToQei9Y4kC8nA8VtHdJ34aJ3sStcS4QnYCnS yihWHrLKsLQAIGHMn8es4Fmk/P4mP7D0sL1nzTy0dRQmDl+s4oPeV1t X-Developer-Key: i=ira.weiny@intel.com; a=ed25519; pk=noldbkG+Wp1qXRrrkfY1QJpDf7QsOEthbOT7vm0PqsE= The event buffer does not need to be allocated if something has failed in setting up event irq's. In prep for adjusting event configuration for DCD events move the buffer allocation to the end of the event configuration. Reviewed-by: Davidlohr Bueso Reviewed-by: Dave Jiang Reviewed-by: Jonathan Cameron Signed-off-by: Ira Weiny --- Changes: [iweiny: keep tags for early simple patch] [Davidlohr, Jonathan, djiang: move to beginning of series] [Dave feel free to pick this up if you like] --- drivers/cxl/pci.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c index 4be35dc22202..3a60cd66263e 100644 --- a/drivers/cxl/pci.c +++ b/drivers/cxl/pci.c @@ -760,10 +760,6 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge, return 0; } - rc = cxl_mem_alloc_event_buf(mds); - if (rc) - return rc; - rc = cxl_event_get_int_policy(mds, &policy); if (rc) return rc; @@ -777,6 +773,10 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge, return -EBUSY; } + rc = cxl_mem_alloc_event_buf(mds); + if (rc) + return rc; + rc = cxl_event_irqsetup(mds); if (rc) return rc;