From patchwork Fri Dec 4 12:11:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kiyanovski, Arthur" X-Patchwork-Id: 11951629 X-Patchwork-Delegate: kuba@kernel.org 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=-20.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham 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 5EF5CC1B0E3 for ; Fri, 4 Dec 2020 12:12:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3CC9C229F0 for ; Fri, 4 Dec 2020 12:12:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387969AbgLDMMq (ORCPT ); Fri, 4 Dec 2020 07:12:46 -0500 Received: from smtp-fw-2101.amazon.com ([72.21.196.25]:38460 "EHLO smtp-fw-2101.amazon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387533AbgLDMMq (ORCPT ); Fri, 4 Dec 2020 07:12:46 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1607083965; x=1638619965; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=F4oFME3h4fjlYXxiGgVtJpyl3RtsG1ktV5+8TFQwtqU=; b=EGgrlf9ttfVAepqkJrKULtGMUVhkigw+P63hGgCMhqbf0IEJszjR3goB 8S6ERKZbKGAXjoUYYuWZ7uq0rUT5RNWMz2hXNnIiXVZ3xZ7v9Q4YN7DyY pP1ZnP1CTyKUxWsg9NVKhG+1Yp2QeSpe4umL/jhCUmOUpdRHtOep81HOt Q=; X-IronPort-AV: E=Sophos;i="5.78,392,1599523200"; d="scan'208";a="67327476" Received: from iad12-co-svc-p1-lb1-vlan3.amazon.com (HELO email-inbound-relay-2a-69849ee2.us-west-2.amazon.com) ([10.43.8.6]) by smtp-border-fw-out-2101.iad2.amazon.com with ESMTP; 04 Dec 2020 12:12:05 +0000 Received: from EX13MTAUWC002.ant.amazon.com (pdx1-ws-svc-p6-lb9-vlan2.pdx.amazon.com [10.236.137.194]) by email-inbound-relay-2a-69849ee2.us-west-2.amazon.com (Postfix) with ESMTPS id BB473A5DC7; Fri, 4 Dec 2020 12:12:03 +0000 (UTC) Received: from EX13D02UWC001.ant.amazon.com (10.43.162.243) by EX13MTAUWC002.ant.amazon.com (10.43.162.240) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 4 Dec 2020 12:12:01 +0000 Received: from EX13MTAUWC001.ant.amazon.com (10.43.162.135) by EX13D02UWC001.ant.amazon.com (10.43.162.243) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 4 Dec 2020 12:12:01 +0000 Received: from HFA15-G63729NC.amazon.com (10.1.212.14) by mail-relay.amazon.com (10.43.162.232) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 4 Dec 2020 12:11:56 +0000 From: To: , , CC: Arthur Kiyanovski , , , , , , , , , , , , , , Subject: [PATCH V4 net-next 8/9] net: ena: use xdp_return_frame() to free xdp frames Date: Fri, 4 Dec 2020 14:11:14 +0200 Message-ID: <1607083875-32134-9-git-send-email-akiyano@amazon.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1607083875-32134-1-git-send-email-akiyano@amazon.com> References: <1607083875-32134-1-git-send-email-akiyano@amazon.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Arthur Kiyanovski XDP subsystem has a function to free XDP frames and their associated pages. Using this function would help the driver's XDP implementation to adjust to new changes in the XDP subsystem in the kernel (e.g. introduction of XDP MB). Also, remove 'xdp_rx_page' field from ena_tx_buffer struct since it is no longer used. Signed-off-by: Shay Agroskin Signed-off-by: Arthur Kiyanovski --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 3 +-- drivers/net/ethernet/amazon/ena/ena_netdev.h | 6 ------ 2 files changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 25e2e2369f45..0d077a626604 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -299,7 +299,6 @@ static int ena_xdp_xmit_frame(struct net_device *dev, req_id = xdp_ring->free_ids[next_to_use]; tx_info = &xdp_ring->tx_buffer_info[req_id]; tx_info->num_of_bufs = 0; - tx_info->xdp_rx_page = virt_to_page(xdpf->data); rc = ena_xdp_tx_map_frame(xdp_ring, tx_info, xdpf, &push_hdr, &push_len); if (unlikely(rc)) @@ -1828,7 +1827,7 @@ static int ena_clean_xdp_irq(struct ena_ring *xdp_ring, u32 budget) tx_pkts++; total_done += tx_info->tx_descs; - __free_page(tx_info->xdp_rx_page); + xdp_return_frame(xdpf); xdp_ring->free_ids[next_to_clean] = req_id; next_to_clean = ENA_TX_RING_IDX_NEXT(next_to_clean, xdp_ring->ring_size); diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index 0fef876c23eb..fed79c50a870 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -170,12 +170,6 @@ struct ena_tx_buffer { * the xdp queues */ struct xdp_frame *xdpf; - /* The rx page for the rx buffer that was received in rx and - * re transmitted on xdp tx queues as a result of XDP_TX action. - * We need to free the page once we finished cleaning the buffer in - * clean_xdp_irq() - */ - struct page *xdp_rx_page; /* Indicate if bufs[0] map the linear data of the skb. */ u8 map_linear_data;