From patchwork Tue Sep 1 21:51:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Awogbemila X-Patchwork-Id: 1355416 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=hB3MqYsB; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4Bh14k1h29z9sR4 for ; Wed, 2 Sep 2020 07:52:06 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729305AbgIAVwF (ORCPT ); Tue, 1 Sep 2020 17:52:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56764 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727833AbgIAVwB (ORCPT ); Tue, 1 Sep 2020 17:52:01 -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 9E88DC061245 for ; Tue, 1 Sep 2020 14:52:00 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id x10so2663955ybj.19 for ; Tue, 01 Sep 2020 14:52:00 -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=YBDBTYJyAAyHSIMfe7u64IQoZsgba0wVm0w4On0MyKI=; b=hB3MqYsBs7cw/1Ipshxwo2lyNYatyRkdhq/cgNhag9zfjGsHTfzQVndgM7pF/RHhE7 BZ/yHS19zCQJ8hXCk6m6mfl55T/GQClu56RJtzi+y5l3i6rEjeV8+8lh84iWXcvo1YaZ RYhxvYyFYogxqRAmlIbzpR9u3XNK0bqGRZ4B0ikukCzQ2sbxrzulflng/KZq7ioDycZM xfdYd97akpmbmWkPAm1jIJ7cY/GMyWOZvh7HJzlsdDxvsQ1ls1NAf9g+XT+pl4nTQgzd UKI1fryC51bRCA5l9FSRjbVDDZCx18N6LxtbF9TMrQlQ7dc+enad15zwqKYX5PddhIf1 YUkg== 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=YBDBTYJyAAyHSIMfe7u64IQoZsgba0wVm0w4On0MyKI=; b=pGtMd91MSO2zD6pAf6ESQFnpSc+1GtkdQZAKxMWLAAJadv1Ru3We7ZWyyJk4CZAqQN 0xgALGT8yjjOJ6O080mQAFuZLuwyZTSJ2Wng/KGpJGAQ2araqlM+LZuEynZpSeX2tku/ Jqji+mD79FjnCnwyw4tIVzC8Juc3zM597+9CIeYNDYMN6Xlp+2lM4mqJL4hS0ooYKU+i Fv0+48MX0xV3KcBgrZrh7KIOnJrOKt6uPOTud0EMV7/JenbIvNN2wY+wSeOCml9LBph9 xgkhDbJQ0PvJvpdMPrk8JL1T6mb/4yAkbUL1FJPmeGoOlsmAMS/AuDUGxf5c2CIWoFij vkkQ== X-Gm-Message-State: AOAM533cEEzQhg+Aj3N7dMNpdBgmihJBE9/DjzfrrQFJWwe7NSkQ7Trn kGyPbTc9/Iu8ZcvQgmoJM1W5mMA+mFF9edDpumeQkEfgpobZOsI8nPFOdF3CgsN9+cFmPt9dD0+ uxScZLkn8bwwSj1XUKDLYtioH+WZ3TCauO3GPKi8aFj9vmEt7H9r0O8cJk/+nhOOmkuS0DQQX X-Google-Smtp-Source: ABdhPJyf4yi7uQ4xUkuRMAoPEU+A59shwoVs9toIGPiSMbCERQemo5tki7J0Ngsh5KLxzvjL/+rlOiWnaFF18jxv X-Received: from awogbemila.sea.corp.google.com ([2620:15c:100:202:1ea0:b8ff:fe73:6cc0]) (user=awogbemila job=sendgmr) by 2002:a25:5755:: with SMTP id l82mr6008189ybb.175.1598997118828; Tue, 01 Sep 2020 14:51:58 -0700 (PDT) Date: Tue, 1 Sep 2020 14:51:41 -0700 In-Reply-To: <20200901215149.2685117-1-awogbemila@google.com> Message-Id: <20200901215149.2685117-2-awogbemila@google.com> Mime-Version: 1.0 References: <20200901215149.2685117-1-awogbemila@google.com> X-Mailer: git-send-email 2.28.0.402.g5ffc5be6b7-goog Subject: [PATCH net-next v2 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 Reviewed-by: Andrew Lunn --- 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, };