From patchwork Tue Sep 8 18:39:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Awogbemila X-Patchwork-Id: 1359905 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20161025 header.b=A2e1TcWK; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BmDVM2rqCz9sSP for ; Wed, 9 Sep 2020 04:40:27 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731959AbgIHSkY (ORCPT ); Tue, 8 Sep 2020 14:40:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51358 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731592AbgIHSjQ (ORCPT ); Tue, 8 Sep 2020 14:39:16 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B5B9C061755 for ; Tue, 8 Sep 2020 11:39:16 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id 129so16477937ybn.15 for ; Tue, 08 Sep 2020 11:39:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=dkWUm4Z0tPUdm1BlajKFR9QJuD0pRExfBk1ntYkPfzE=; b=A2e1TcWKCEhIjeNfrGhmTGCl3KOZZvCVhRZu+HD+XUL28XMZ7Xsb3TL+ebnZL8erYP cyNntMLsN963n7+j1GXYPPdv0/zrwgBdptYYGzSWtXCIcQ2waK3OgGpjc0AuNi7LfMRZ MyW0z/E8x6JPx6krRPG6UOxodC2WXXRSPAVGpP6fPHrNEFXJu/pHw/LZn3adYjFtSEx6 QJLhBUusXT+kKtCAkom6S8i7mAoFoRDvPVnbRhMV35ZfX8U9zV3V/+m1TTpz8Eqaglyl +MErsW9aGUr1Ud8QqWUzKwFdj8HhxoP9zfcarQ83Pv90A/2Cmwu+1e2d/Q/9i5oCEYo0 X1rg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=dkWUm4Z0tPUdm1BlajKFR9QJuD0pRExfBk1ntYkPfzE=; b=O2gY8KL5/qYNgoc/2LJcEZCopDmrEx+YsXRockd3nAS6HlZhAvTJm84KlJYkU4zDcn aj1o7fQexYzAEBnuScGNfR+BqhLqVKzGJVYyCCHgg0Vsq0yYFOOJDT6xMlZx4o9GbPEM Fg7hO93DQcG6Z//UiiYeZj0Ly0U1SbbROhw8qB1F1VmZ03aqtmJmNOvrZIB9Lp9jQIcX MKMhAasKhc3s13q00/XJM6GVdPyP5fpABFwNxsgF9bLYolbxKXmJFo6PJhuIXZRL8G6S jO5p+j1MS6wRZlSlB9G+NetYuhs6038SJ5n8NiZVQkdW9r5smiCnAcpK10HDPlSRI6Dm 6M3g== X-Gm-Message-State: AOAM533Ydd0h4wZEe+LgKGWzYFy6FznkuXOObPYoARkzm5IeFGZ4Kk9e C9mi7hqWa4Gs9UIAoLWsGtzAHnT3x37WBHUDQ1vEIWBEWMIMiab6UuIDHaSMRo4zSyqQFcUClnV gR/73LIzK4WHkgT4JZamtkjs1KFJxjQTaN2GsjGEdtQwSzG5D4zCspkE3HbZ5G+yo98DOXEGv X-Google-Smtp-Source: ABdhPJyqi0MIinSbuv8i0p6umna0XmFg564ymQFRNit3Ng2/6/svO8EF6KRebyzeD2WdrW0Eejvkz4ZkSmH60CVc X-Received: from awogbemila.sea.corp.google.com ([2620:15c:100:202:1ea0:b8ff:fe73:6cc0]) (user=awogbemila job=sendgmr) by 2002:a05:6902:50a:: with SMTP id x10mr256265ybs.397.1599590355088; Tue, 08 Sep 2020 11:39:15 -0700 (PDT) Date: Tue, 8 Sep 2020 11:39:01 -0700 In-Reply-To: <20200908183909.4156744-1-awogbemila@google.com> Message-Id: <20200908183909.4156744-2-awogbemila@google.com> Mime-Version: 1.0 References: <20200908183909.4156744-1-awogbemila@google.com> X-Mailer: git-send-email 2.28.0.526.ge36021eeef-goog Subject: [PATCH net-next v3 1/9] gve: Get and set Rx copybreak via ethtool From: David Awogbemila To: netdev@vger.kernel.org Cc: Kuo Zhao , Yangchun Fu , David Awogbemila Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Kuo Zhao This adds support for getting and setting the RX copybreak value via ethtool. Reviewed-by: Yangchun Fu Signed-off-by: Kuo Zhao Signed-off-by: David Awogbemila --- drivers/net/ethernet/google/gve/gve_ethtool.c | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/net/ethernet/google/gve/gve_ethtool.c b/drivers/net/ethernet/google/gve/gve_ethtool.c index d8fa816f4473..1a80d38e66ec 100644 --- a/drivers/net/ethernet/google/gve/gve_ethtool.c +++ b/drivers/net/ethernet/google/gve/gve_ethtool.c @@ -230,6 +230,38 @@ static int gve_user_reset(struct net_device *netdev, u32 *flags) return -EOPNOTSUPP; } +static int gve_get_tunable(struct net_device *netdev, + const struct ethtool_tunable *etuna, void *value) +{ + struct gve_priv *priv = netdev_priv(netdev); + + switch (etuna->id) { + case ETHTOOL_RX_COPYBREAK: + *(u32 *)value = priv->rx_copybreak; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int gve_set_tunable(struct net_device *netdev, + const struct ethtool_tunable *etuna, const void *value) +{ + struct gve_priv *priv = netdev_priv(netdev); + u32 len; + + switch (etuna->id) { + case ETHTOOL_RX_COPYBREAK: + len = *(u32 *)value; + if (len > PAGE_SIZE / 2) + return -EINVAL; + priv->rx_copybreak = len; + return 0; + default: + return -EOPNOTSUPP; + } +} + const struct ethtool_ops gve_ethtool_ops = { .get_drvinfo = gve_get_drvinfo, .get_strings = gve_get_strings, @@ -242,4 +274,6 @@ const struct ethtool_ops gve_ethtool_ops = { .get_link = ethtool_op_get_link, .get_ringparam = gve_get_ringparam, .reset = gve_user_reset, + .get_tunable = gve_get_tunable, + .set_tunable = gve_set_tunable, };