From mboxrd@z Thu Jan 1 00:00:00 1970 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=-1.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no 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 C526BC06513 for ; Thu, 4 Jul 2019 09:39:48 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9998F21852 for ; Thu, 4 Jul 2019 09:39:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="R+Y2+QKM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9998F21852 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=I7SzzoO8Zk9OwnzB6yGzYSOBPgepx+eYE58aHfhRDzA=; b=R+Y2+QKMr92Xtj /NLzpkBff28Vv0C4JjwVsDiA/W0mzsFVHnUei2P1ScipVQLjl4NNUxTuhL8vQ0ikHnxsxfdXc4yz0 YIjuk+yX6NCuclK8+n8o2kma5x30/sSnlZcCJWweDsn0F+vHZkWHWCggok/wrxrEdSrHI9/+u46E+ 1Yi+q6h/MZxGCThoXv45c9EE3xDAinarZj2VTr1kNixzTI8jrJxYKgAyAcNC1UwsxB25lkPIerxuJ WtSn7f1G8jWC5AcIb6JL49EuPPweWP7rp2w+g+0IHnP0H4tAllubeqdxDXYqekbt6wfVh5mmwww+m pyuQmlcjYmj0mnDlnKBg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hiyDO-0007Go-1T; Thu, 04 Jul 2019 09:39:42 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hiyDK-0007FW-KG for linux-arm-kernel@lists.infradead.org; Thu, 04 Jul 2019 09:39:40 +0000 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id F3FB880F7C; Thu, 4 Jul 2019 09:39:33 +0000 (UTC) Received: from carbon (ovpn-200-17.brq.redhat.com [10.40.200.17]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5C84B88F19; Thu, 4 Jul 2019 09:39:17 +0000 (UTC) Date: Thu, 4 Jul 2019 11:39:16 +0200 From: Jesper Dangaard Brouer To: Jose Abreu Subject: Re: [PATCH net-next 3/3] net: stmmac: Introducing support for Page Pool Message-ID: <20190704113916.665de2ec@carbon> In-Reply-To: <1b254bb7fc6044c5e6e2fdd9e00088d1d13a808b.1562149883.git.joabreu@synopsys.com> References: <1b254bb7fc6044c5e6e2fdd9e00088d1d13a808b.1562149883.git.joabreu@synopsys.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Thu, 04 Jul 2019 09:39:35 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190704_023938_681035_C9471975 X-CRM114-Status: GOOD ( 13.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Joao Pinto , Alexandre Torgue , Maxime Ripard , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "David S . Miller" , Chen-Yu Tsai , Maxime Coquelin , brouer@redhat.com, Giuseppe Cavallaro , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 3 Jul 2019 12:37:50 +0200 Jose Abreu wrote: > @@ -1498,8 +1479,9 @@ static void free_dma_rx_desc_resources(struct stmmac_priv *priv) > sizeof(struct dma_extended_desc), > rx_q->dma_erx, rx_q->dma_rx_phy); > > - kfree(rx_q->rx_skbuff_dma); > - kfree(rx_q->rx_skbuff); > + kfree(rx_q->buf_pool); > + if (rx_q->page_pool) > + page_pool_request_shutdown(rx_q->page_pool); > } > } > The page_pool_request_shutdown() API return indication if there are any in-flight frames/pages, to know when it is safe to call page_pool_free(), which you are also missing a call to. This page_pool_request_shutdown() is only intended to be called from xdp_rxq_info_unreg() code, that handles and schedule a work queue if it need to wait for in-flight frames/pages. -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel