From patchwork Tue Nov 10 19:47:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 11895209 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3CB191668 for ; Tue, 10 Nov 2020 19:51:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0C587206D8 for ; Tue, 10 Nov 2020 19:51:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YeBxn6BC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731564AbgKJTvW (ORCPT ); Tue, 10 Nov 2020 14:51:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54612 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725862AbgKJTvW (ORCPT ); Tue, 10 Nov 2020 14:51:22 -0500 Received: from mail-ed1-x543.google.com (mail-ed1-x543.google.com [IPv6:2a00:1450:4864:20::543]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 403FEC0613D1; Tue, 10 Nov 2020 11:51:22 -0800 (PST) Received: by mail-ed1-x543.google.com with SMTP id k9so14104996edo.5; Tue, 10 Nov 2020 11:51:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:from:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding; bh=bOdWylhtQ7csIcx3x7AgcGPRiivjTYceou3ldTAJsAs=; b=YeBxn6BCTsEDT2K3jc2JwEBRjqhWJ4MxrIdcqijDmpwNxmHZjSSoL1c7tNj79zov0u jGcdzUbaafpV+7md60rfV7XhBJ0spqnBGkFLNbS1urJ9tR5zo1lrzsKH3lR32S+6v2ev 4aWuKJw5QZP15QpGRBfS0Q2NJtJhg+Hv9dAl0MPJr2BAlO4gqfRv9BlI/oj04n0I51C3 gV2CQ8oWuZ/3aRAo/kbS2hRju9wCOxa59FFjJ2cXwvJyKHfTrrKtn+ECQTYbBmk6DYlL TCjnVxgxtu99AAuOb5XdESLmFIYghJawyJhELlyKn+XWUXg8PQgVPF/Lwn9hCTt977GC pHoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=bOdWylhtQ7csIcx3x7AgcGPRiivjTYceou3ldTAJsAs=; b=GdyfFJsoiV/9vuvsYXj8qV+9tzIFlRFzEK4w1yWeypSB/5W1ctIkYgKTKtwRwVspQb JzLKIfsSwqVTan42Uk23gCZ/nyGQbIl033RLVpjC2bTHUMRIEaKu4Dc2zizGfU5YvUSz 5hx5e2TvKLHKXiQV2u8m6jnDr+b46HXw09g98Vfv0kLdnpRKZO4FHgH/bxdgAxJrtvnH 5IkQJ0iTjSoPB7nJ1oB+nqCFzFVAbJcPVdS1iWPPTrAjN2gV6oCK/PtdXCss3y4GJvg2 AIELCfxUlUCvRqePEbbEJPyRtRqza9v81z3TlEdSPtcaIFR03dTpSnFweel8sOGUd6ba kAYQ== X-Gm-Message-State: AOAM530OrErErBHpJ1XR1kLNoaVtJDX/x9P7qQDdNuqVCuzDl9Xrh37F 9lzVHtemob8f6E8Ak1RGOnutRAfeund+yw== X-Google-Smtp-Source: ABdhPJxk7DTsgCEZiCcDHIK6P7rRocDMeZD9EY8ECUBsYZPrhDfIBIbmqWIZBZNqp8eLRr7R6QyMEQ== X-Received: by 2002:a05:6402:31b6:: with SMTP id dj22mr23495415edb.348.1605037880671; Tue, 10 Nov 2020 11:51:20 -0800 (PST) Received: from ?IPv6:2003:ea:8f23:2800:895e:e59d:3602:de4b? 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[2003:ea:8f23:2800:895e:e59d:3602:de4b]) by smtp.googlemail.com with ESMTPSA id a1sm11311622edv.88.2020.11.10.11.51.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 10 Nov 2020 11:51:20 -0800 (PST) Subject: [PATCH net-next 1/5] IB/hfi1: switch to core handling of rx/tx byte/packet counters From: Heiner Kallweit To: Jakub Kicinski , David Miller , Mike Marciniszyn , Dennis Dalessandro , Doug Ledford , Jason Gunthorpe , =?utf-8?q?Bj=C3=B8rn_Mork?= , Igor Mitsyanko , Sergey Matyukevich , Kalle Valo , Oliver Neukum , Peter Korsgaard , Steve Glendinning , Microchip Linux Driver Support , Jussi Kivilinna Cc: "netdev@vger.kernel.org" , linux-rdma@vger.kernel.org, Linux USB Mailing List , linux-wireless References: <5fbe3a1f-6625-eadc-b1c9-f76f78debb94@gmail.com> Message-ID: <5093239e-2d3b-a716-3039-790abdb7a5ba@gmail.com> Date: Tue, 10 Nov 2020 20:47:34 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.4.1 MIME-Version: 1.0 In-Reply-To: <5fbe3a1f-6625-eadc-b1c9-f76f78debb94@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Use netdev->tstats instead of a member of hfi1_ipoib_dev_priv for storing a pointer to the per-cpu counters. This allows us to use core functionality for statistics handling. Signed-off-by: Heiner Kallweit --- drivers/infiniband/hw/hfi1/driver.c | 4 +--- drivers/infiniband/hw/hfi1/ipoib.h | 27 ------------------------- drivers/infiniband/hw/hfi1/ipoib_main.c | 15 +++----------- drivers/infiniband/hw/hfi1/ipoib_tx.c | 2 +- 4 files changed, 5 insertions(+), 43 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/driver.c b/drivers/infiniband/hw/hfi1/driver.c index a40701a6e..0b64aa87a 100644 --- a/drivers/infiniband/hw/hfi1/driver.c +++ b/drivers/infiniband/hw/hfi1/driver.c @@ -1686,7 +1686,6 @@ static void hfi1_ipoib_ib_rcv(struct hfi1_packet *packet) u32 extra_bytes; u32 tlen, qpnum; bool do_work, do_cnp; - struct hfi1_ipoib_dev_priv *priv; trace_hfi1_rcvhdr(packet); @@ -1734,8 +1733,7 @@ static void hfi1_ipoib_ib_rcv(struct hfi1_packet *packet) if (unlikely(!skb)) goto drop; - priv = hfi1_ipoib_priv(netdev); - hfi1_ipoib_update_rx_netstats(priv, 1, skb->len); + dev_sw_netstats_rx_add(netdev, skb->len); skb->dev = netdev; skb->pkt_type = PACKET_HOST; diff --git a/drivers/infiniband/hw/hfi1/ipoib.h b/drivers/infiniband/hw/hfi1/ipoib.h index b8c9d0a00..f650cac9d 100644 --- a/drivers/infiniband/hw/hfi1/ipoib.h +++ b/drivers/infiniband/hw/hfi1/ipoib.h @@ -110,7 +110,6 @@ struct hfi1_ipoib_dev_priv { const struct net_device_ops *netdev_ops; struct rvt_qp *qp; - struct pcpu_sw_netstats __percpu *netstats; }; /* hfi1 ipoib rdma netdev's private data structure */ @@ -126,32 +125,6 @@ hfi1_ipoib_priv(const struct net_device *dev) return &((struct hfi1_ipoib_rdma_netdev *)netdev_priv(dev))->dev_priv; } -static inline void -hfi1_ipoib_update_rx_netstats(struct hfi1_ipoib_dev_priv *priv, - u64 packets, - u64 bytes) -{ - struct pcpu_sw_netstats *netstats = this_cpu_ptr(priv->netstats); - - u64_stats_update_begin(&netstats->syncp); - netstats->rx_packets += packets; - netstats->rx_bytes += bytes; - u64_stats_update_end(&netstats->syncp); -} - -static inline void -hfi1_ipoib_update_tx_netstats(struct hfi1_ipoib_dev_priv *priv, - u64 packets, - u64 bytes) -{ - struct pcpu_sw_netstats *netstats = this_cpu_ptr(priv->netstats); - - u64_stats_update_begin(&netstats->syncp); - netstats->tx_packets += packets; - netstats->tx_bytes += bytes; - u64_stats_update_end(&netstats->syncp); -} - int hfi1_ipoib_send_dma(struct net_device *dev, struct sk_buff *skb, struct ib_ah *address, diff --git a/drivers/infiniband/hw/hfi1/ipoib_main.c b/drivers/infiniband/hw/hfi1/ipoib_main.c index 9f71b9d70..3242290eb 100644 --- a/drivers/infiniband/hw/hfi1/ipoib_main.c +++ b/drivers/infiniband/hw/hfi1/ipoib_main.c @@ -21,7 +21,7 @@ static int hfi1_ipoib_dev_init(struct net_device *dev) struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); int ret; - priv->netstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); + dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); ret = priv->netdev_ops->ndo_init(dev); if (ret) @@ -93,21 +93,12 @@ static int hfi1_ipoib_dev_stop(struct net_device *dev) return priv->netdev_ops->ndo_stop(dev); } -static void hfi1_ipoib_dev_get_stats64(struct net_device *dev, - struct rtnl_link_stats64 *storage) -{ - struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev); - - netdev_stats_to_stats64(storage, &dev->stats); - dev_fetch_sw_netstats(storage, priv->netstats); -} - static const struct net_device_ops hfi1_ipoib_netdev_ops = { .ndo_init = hfi1_ipoib_dev_init, .ndo_uninit = hfi1_ipoib_dev_uninit, .ndo_open = hfi1_ipoib_dev_open, .ndo_stop = hfi1_ipoib_dev_stop, - .ndo_get_stats64 = hfi1_ipoib_dev_get_stats64, + .ndo_get_stats64 = dev_get_tstats64, }; static int hfi1_ipoib_send(struct net_device *dev, @@ -182,7 +173,7 @@ static void hfi1_ipoib_netdev_dtor(struct net_device *dev) hfi1_ipoib_txreq_deinit(priv); hfi1_ipoib_rxq_deinit(priv->netdev); - free_percpu(priv->netstats); + free_percpu(dev->tstats); } static void hfi1_ipoib_free_rdma_netdev(struct net_device *dev) diff --git a/drivers/infiniband/hw/hfi1/ipoib_tx.c b/drivers/infiniband/hw/hfi1/ipoib_tx.c index 9df292b51..edd4eeac8 100644 --- a/drivers/infiniband/hw/hfi1/ipoib_tx.c +++ b/drivers/infiniband/hw/hfi1/ipoib_tx.c @@ -121,7 +121,7 @@ static void hfi1_ipoib_free_tx(struct ipoib_txreq *tx, int budget) struct hfi1_ipoib_dev_priv *priv = tx->priv; if (likely(!tx->sdma_status)) { - hfi1_ipoib_update_tx_netstats(priv, 1, tx->skb->len); + dev_sw_netstats_tx_add(priv->netdev, 1, tx->skb->len); } else { ++priv->netdev->stats.tx_errors; dd_dev_warn(priv->dd,