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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 10472C8300B for ; Thu, 30 Apr 2020 11:20:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DDEB02076D for ; Thu, 30 Apr 2020 11:20:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="WJCvUsfN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726661AbgD3LUr (ORCPT ); Thu, 30 Apr 2020 07:20:47 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:60668 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725280AbgD3LUq (ORCPT ); Thu, 30 Apr 2020 07:20:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588245645; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ILUJG63r1fVqpZWn7jYsmXbyYX5nOdIA8b/M8XqOOLI=; b=WJCvUsfNd/+quc1WVoGe4JyVX6IxY8f3qxxK78iTTjRZlqU5ViSmoDsr8pGPG2pWZWvE68 /I63Ss7SkOXRF3IiPkgyzPaRRA5uEtwcxCW6Gb1YpoyI10vM6BHLZIruvksrUkwHzZhcxl sgJSihxX2e9khQnLRL6UhwsaCRyDwh8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-47-Y2TTak4BPl6N0S94i4IG8A-1; Thu, 30 Apr 2020 07:20:41 -0400 X-MC-Unique: Y2TTak4BPl6N0S94i4IG8A-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1423D8014D9; Thu, 30 Apr 2020 11:20:39 +0000 (UTC) Received: from firesoul.localdomain (unknown [10.40.208.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id A4AAA605E0; Thu, 30 Apr 2020 11:20:32 +0000 (UTC) Received: from [192.168.42.3] (localhost [IPv6:::1]) by firesoul.localdomain (Postfix) with ESMTP id 94DEA324DB2C0; Thu, 30 Apr 2020 13:20:31 +0200 (CEST) Subject: [PATCH net-next v2 02/33] bnxt: add XDP frame size to driver From: Jesper Dangaard Brouer To: sameehj@amazon.com Cc: Michael Chan , Andy Gospodarek , Andy Gospodarek , Jesper Dangaard Brouer , netdev@vger.kernel.org, bpf@vger.kernel.org, zorik@amazon.com, akiyano@amazon.com, gtzalik@amazon.com, =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= , Daniel Borkmann , Alexei Starovoitov , John Fastabend , Alexander Duyck , Jeff Kirsher , David Ahern , Willem de Bruijn , Ilias Apalodimas , Lorenzo Bianconi , Saeed Mahameed , steffen.klassert@secunet.com Date: Thu, 30 Apr 2020 13:20:31 +0200 Message-ID: <158824563152.2172139.6368427642941961891.stgit@firesoul> In-Reply-To: <158824557985.2172139.4173570969543904434.stgit@firesoul> References: <158824557985.2172139.4173570969543904434.stgit@firesoul> User-Agent: StGit/0.19 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This driver uses full PAGE_SIZE pages when XDP is enabled. In case of XDP uses driver uses __bnxt_alloc_rx_page which does full page DMA-map. Thus, xdp_adjust_tail grow is DMA compliant for XDP_TX action that does DMA-sync. Cc: Michael Chan Cc: Andy Gospodarek Signed-off-by: Jesper Dangaard Brouer Reviewed-by: Andy Gospodarek --- drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c index c6f6f2033880..5e3b4a3b69ea 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c @@ -138,6 +138,7 @@ bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons, xdp_set_data_meta_invalid(&xdp); xdp.data_end = *data_ptr + *len; xdp.rxq = &rxr->xdp_rxq; + xdp.frame_sz = PAGE_SIZE; /* BNXT_RX_PAGE_MODE(bp) when XDP enabled */ orig_data = xdp.data; rcu_read_lock();