From patchwork Wed Jan 31 17:05:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Barker X-Patchwork-Id: 13539771 X-Patchwork-Delegate: geert@linux-m68k.org Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 7CF3812C539; Wed, 31 Jan 2024 17:06:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706720769; cv=none; b=RDjnVz2Wp9veKKl4VKxk2stvSAZZvTeUH0LZ4/T7GtsLw5Ac8aC7AsvW6yXYqVEnS/ka4dmwNwHT5bsadEBou4H7royPkzfk1AclZyHhsIK5OoX0kwKvVbZCHgMViIMp2spLfPnqlRRLfK4loOqynktoW/dFfNaIYsPmlmTs/9U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706720769; c=relaxed/simple; bh=jDaoRchUeMb3jhh/QTDuC4oc5ie9+ahUDA1P+pGYTO4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ev/IOwYXBWa8RCPTcDXaiHxVuQoTTuBka22JMTiHtAHCM+PEM5rKwK92tfoTY1xcpvFLMeLF4VFJD5BeQxq9STvxUrQCYX0ajLc8WSPvbaYLidRl9oHwmvl1waVxfYBEFD1jcUvZyTpe4DkhnUaM0Hjl/bTCpSdfWpUcZE8Dtt8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-IronPort-AV: E=Sophos;i="6.05,231,1701097200"; d="scan'208";a="192404892" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 01 Feb 2024 02:06:07 +0900 Received: from GBR-5CG2373LKG.adwin.renesas.com (unknown [10.226.92.158]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id A1E50403490C; Thu, 1 Feb 2024 02:06:03 +0900 (JST) From: Paul Barker To: Sergey Shtylyov , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Paul Barker , Yoshihiro Shimoda , Wolfram Sang , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 5/8] net: ravb: Always update error counters Date: Wed, 31 Jan 2024 17:05:19 +0000 Message-Id: <20240131170523.30048-6-paul.barker.ct@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240131170523.30048-1-paul.barker.ct@bp.renesas.com> References: <20240131170523.30048-1-paul.barker.ct@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The error statistics should be updated each time the poll function is called, even if the full RX work budget has been consumed. This prevents the counts from becoming stuck when RX bandwidth usage is high. This also ensures that error counters are not updated after we've re-enabled interrupts as that could result in a race condition. Also drop an unnecessary space. Signed-off-by: Paul Barker --- drivers/net/ethernet/renesas/ravb_main.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 9b0ed269e69b..a90e70b25875 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1354,6 +1354,15 @@ static int ravb_poll_gbeth(struct napi_struct *napi, int budget) netif_wake_subqueue(ndev, q); spin_unlock_irqrestore(&priv->lock, flags); + /* Receive error message handling */ + priv->rx_over_errors = priv->stats[RAVB_BE].rx_over_errors; + if (info->nc_queues) + priv->rx_over_errors += priv->stats[RAVB_NC].rx_over_errors; + if (priv->rx_over_errors != ndev->stats.rx_over_errors) + ndev->stats.rx_over_errors = priv->rx_over_errors; + if (priv->rx_fifo_errors != ndev->stats.rx_fifo_errors) + ndev->stats.rx_fifo_errors = priv->rx_fifo_errors; + if (work_done == budget) goto out; @@ -1370,14 +1379,6 @@ static int ravb_poll_gbeth(struct napi_struct *napi, int budget) } spin_unlock_irqrestore(&priv->lock, flags); - /* Receive error message handling */ - priv->rx_over_errors = priv->stats[RAVB_BE].rx_over_errors; - if (info->nc_queues) - priv->rx_over_errors += priv->stats[RAVB_NC].rx_over_errors; - if (priv->rx_over_errors != ndev->stats.rx_over_errors) - ndev->stats.rx_over_errors = priv->rx_over_errors; - if (priv->rx_fifo_errors != ndev->stats.rx_fifo_errors) - ndev->stats.rx_fifo_errors = priv->rx_fifo_errors; out: return work_done; }