From patchwork Tue Sep 1 21:51:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Awogbemila X-Patchwork-Id: 1355422 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=lt2nq6eG; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4Bh1562sbVz9sTK for ; Wed, 2 Sep 2020 07:52:26 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729759AbgIAVwZ (ORCPT ); Tue, 1 Sep 2020 17:52:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727946AbgIAVwI (ORCPT ); Tue, 1 Sep 2020 17:52:08 -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 1C91CC061245 for ; Tue, 1 Sep 2020 14:52:08 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id j20so2704905ybt.10 for ; Tue, 01 Sep 2020 14:52:08 -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=c20ktH6NmViBNAmU75r3cg0aTyG4UTJz4SQKC6m12jk=; b=lt2nq6eGWWdymykMHQ5DOmFQG5Q6XG3eSBSqqh/wavQqePoE48wAh8rtlP+bgRY6rK 6GfgB7CyKx+DApz3XdEFZtHZrS9Y/h2Ae4Rsk9djLLte+Q9sB/jG76Lh6mPfAGP1+4ks BJvHVKELX5Kam4X7yhpHMqr+3ZYmZSCEUB8cteCST2ooo1cRvtZYgIJ+hv6ApMhC1U9Y txT/DbnDlmOwPqdAZpPLd8tGmq0R7z+ByE1KaFkWtg3bnKTDAMBUa79ceVxdYyb+U/ML 8lv0/l0bvtfddZrI6ZHTqLUNrGgueewXjjLMGButB+Hg2QNRiu9BXTOfk7onfADmEGB9 VJQA== 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=c20ktH6NmViBNAmU75r3cg0aTyG4UTJz4SQKC6m12jk=; b=LC9IAsaOT+2bn1j+f9Fnq4m+j87PZhj3/Hte0CJJ3EN2cNP3v4o0r9DACHTGkevqNg M3cry0NCA/C9flsdmFrH7U6WxIt7Cwdj3/Wg3xQaGT5EEuQiNNbbuZJ0q9Bj5ePGqWhL yi5nIKN1cg9hy/6b5umRkIHSk3x9pie04KlcJo0tuUo0BbHtd+pp5DOu5LsKa+UOAaIo lZFdscOMwYKjRnBF7gdh38YtMXX9Mb+78/FgJo8xe/1GfCRjUTSZFneSlbDSaPp6/+9u 3tcG7k53XnpRz8R88mB4DhpN24A7DMbLcsE0/KOTG9fhfU/ry68ih2kWz9j9LHuYWZPn MyiQ== X-Gm-Message-State: AOAM5327roSLpbGS/tiZ7zKblWTJ+kZ/WNqdNO3LViP4BejPcxLxGijF RgSy4BXexf+FTro0CuUmx0FGacMN+NvIeZEN3Qp6hf3fF7R4HqoA5PW0t58UPJEDfjFtBVFqOJQ 46L1pr89BeAtqqv1E9mZnagm/Yd91g2PL338Xdb4NyyRC10aWb+Aa5Hq9DDP14SyHGEay9QnD X-Google-Smtp-Source: ABdhPJz7dJDsRcYmnipGrb2aoIM3GSEb7unIJ711RdZSF46jnA3PQKFR4X2NK8AWo/p3JiFHbrL2XK0hG37dd+Ck X-Received: from awogbemila.sea.corp.google.com ([2620:15c:100:202:1ea0:b8ff:fe73:6cc0]) (user=awogbemila job=sendgmr) by 2002:a25:2e12:: with SMTP id u18mr5295029ybu.437.1598997127259; Tue, 01 Sep 2020 14:52:07 -0700 (PDT) Date: Tue, 1 Sep 2020 14:51:46 -0700 In-Reply-To: <20200901215149.2685117-1-awogbemila@google.com> Message-Id: <20200901215149.2685117-7-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 6/9] gve: NIC stats for report-stats and for ethtool From: David Awogbemila To: netdev@vger.kernel.org Cc: David Awogbemila Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This adds per queue NIC stats to ethtool stats and to report-stats. These stats are always exposed to guest whether or not the report-stats flag is turned on. Signed-off-by: David Awogbemila --- drivers/net/ethernet/google/gve/gve.h | 4 + drivers/net/ethernet/google/gve/gve_adminq.h | 5 ++ drivers/net/ethernet/google/gve/gve_ethtool.c | 83 ++++++++++++++++++- drivers/net/ethernet/google/gve/gve_main.c | 4 +- 4 files changed, 93 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/google/gve/gve.h b/drivers/net/ethernet/google/gve/gve.h index 9957a7d535ad..bc54059f9b2e 100644 --- a/drivers/net/ethernet/google/gve/gve.h +++ b/drivers/net/ethernet/google/gve/gve.h @@ -31,6 +31,10 @@ #define GVE_TX_STATS_REPORT_NUM 5 #define GVE_RX_STATS_REPORT_NUM 2 +/* Numbers of NIC tx/rx stats in stats report. */ +#define NIC_TX_STATS_REPORT_NUM 0 +#define NIC_RX_STATS_REPORT_NUM 4 + /* Interval to schedule a service task, 20000ms. */ #define GVE_SERVICE_TIMER_PERIOD 20000 diff --git a/drivers/net/ethernet/google/gve/gve_adminq.h b/drivers/net/ethernet/google/gve/gve_adminq.h index b81a3bb76d5e..a6c8c29f0d13 100644 --- a/drivers/net/ethernet/google/gve/gve_adminq.h +++ b/drivers/net/ethernet/google/gve/gve_adminq.h @@ -205,6 +205,11 @@ enum gve_stat_names { TX_LAST_COMPLETION_PROCESSED = 5, RX_NEXT_EXPECTED_SEQUENCE = 6, RX_BUFFERS_POSTED = 7, + // stats from NIC + RX_QUEUE_DROP_CNT = 65, + RX_NO_BUFFERS_POSTED = 66, + RX_DROPS_PACKET_OVER_MRU = 67, + RX_DROPS_INVALID_CHECKSUM = 68, }; union gve_adminq_command { diff --git a/drivers/net/ethernet/google/gve/gve_ethtool.c b/drivers/net/ethernet/google/gve/gve_ethtool.c index 8d70df2447ef..db5642fe966f 100644 --- a/drivers/net/ethernet/google/gve/gve_ethtool.c +++ b/drivers/net/ethernet/google/gve/gve_ethtool.c @@ -43,6 +43,8 @@ static const char gve_gstrings_main_stats[][ETH_GSTRING_LEN] = { static const char gve_gstrings_rx_stats[][ETH_GSTRING_LEN] = { "rx_posted_desc[%u]", "rx_completed_desc[%u]", "rx_bytes[%u]", "rx_dropped_pkt[%u]", "rx_copybreak_pkt[%u]", "rx_copied_pkt[%u]", + "rx_queue_drop_cnt[%u]", "rx_no_buffers_posted[%u]", + "rx_drops_packet_over_mru[%u]", "rx_drops_invalid_checksum[%u]", }; static const char gve_gstrings_tx_stats[][ETH_GSTRING_LEN] = { @@ -138,14 +140,30 @@ gve_get_ethtool_stats(struct net_device *netdev, tmp_rx_desc_err_dropped_pkt, tmp_tx_pkts, tmp_tx_bytes; u64 rx_buf_alloc_fail, rx_desc_err_dropped_pkt, rx_pkts, rx_skb_alloc_fail, rx_bytes, tx_pkts, tx_bytes; + int stats_idx, base_stats_idx, max_stats_idx; + struct stats *report_stats; + int *rx_qid_to_stats_idx; + int *tx_qid_to_stats_idx; struct gve_priv *priv; + bool skip_nic_stats; unsigned int start; int ring; - int i; + int i, j; ASSERT_RTNL(); priv = netdev_priv(netdev); + report_stats = priv->stats_report->stats; + rx_qid_to_stats_idx = kmalloc_array(priv->rx_cfg.num_queues, + sizeof(int), GFP_KERNEL); + if (!rx_qid_to_stats_idx) + return; + tx_qid_to_stats_idx = kmalloc_array(priv->tx_cfg.num_queues, + sizeof(int), GFP_KERNEL); + if (!tx_qid_to_stats_idx) { + kfree(rx_qid_to_stats_idx); + return; + } for (rx_pkts = 0, rx_bytes = 0, rx_skb_alloc_fail = 0, rx_buf_alloc_fail = 0, rx_desc_err_dropped_pkt = 0, ring = 0; ring < priv->rx_cfg.num_queues; ring++) { @@ -206,6 +224,25 @@ gve_get_ethtool_stats(struct net_device *netdev, data[i++] = priv->dma_mapping_error; i = GVE_MAIN_STATS_LEN; + /* For rx cross-reporting stats, start from nic rx stats in report */ + base_stats_idx = GVE_TX_STATS_REPORT_NUM * priv->tx_cfg.num_queues + + GVE_RX_STATS_REPORT_NUM * priv->rx_cfg.num_queues; + max_stats_idx = NIC_RX_STATS_REPORT_NUM * priv->rx_cfg.num_queues + + base_stats_idx; + /* Preprocess the stats report for rx, map queue id to start index */ + skip_nic_stats = false; + for (stats_idx = base_stats_idx; stats_idx < max_stats_idx; + stats_idx += NIC_RX_STATS_REPORT_NUM) { + u32 stat_name = be32_to_cpu(report_stats[stats_idx].stat_name); + u32 queue_id = be32_to_cpu(report_stats[stats_idx].queue_id); + + if (stat_name == 0) { + /* no stats written by NIC yet */ + skip_nic_stats = true; + break; + } + rx_qid_to_stats_idx[queue_id] = stats_idx; + } /* walk RX rings */ if (priv->rx) { for (ring = 0; ring < priv->rx_cfg.num_queues; ring++) { @@ -230,11 +267,41 @@ gve_get_ethtool_stats(struct net_device *netdev, tmp_rx_desc_err_dropped_pkt; data[i++] = rx->rx_copybreak_pkt; data[i++] = rx->rx_copied_pkt; + /* stats from NIC */ + if (skip_nic_stats) { + /* skip NIC rx stats */ + i += NIC_RX_STATS_REPORT_NUM; + continue; + } + for (j = 0; j < NIC_RX_STATS_REPORT_NUM; j++) { + u64 value = + be64_to_cpu(report_stats[rx_qid_to_stats_idx[ring] + j].value); + + data[i++] = value; + } } } else { i += priv->rx_cfg.num_queues * NUM_GVE_RX_CNTS; } + /* For tx cross-reporting stats, start from nic tx stats in report */ + base_stats_idx = max_stats_idx; + max_stats_idx = NIC_TX_STATS_REPORT_NUM * priv->tx_cfg.num_queues + + max_stats_idx; + /* Preprocess the stats report for tx, map queue id to start index */ + skip_nic_stats = false; + for (stats_idx = base_stats_idx; stats_idx < max_stats_idx; + stats_idx += NIC_TX_STATS_REPORT_NUM) { + u32 stat_name = be32_to_cpu(report_stats[stats_idx].stat_name); + u32 queue_id = be32_to_cpu(report_stats[stats_idx].queue_id); + + if (stat_name == 0) { + /* no stats written by NIC yet */ + skip_nic_stats = true; + break; + } + tx_qid_to_stats_idx[queue_id] = stats_idx; + } /* walk TX rings */ if (priv->tx) { for (ring = 0; ring < priv->tx_cfg.num_queues; ring++) { @@ -253,11 +320,25 @@ gve_get_ethtool_stats(struct net_device *netdev, data[i++] = tx->stop_queue; data[i++] = be32_to_cpu(gve_tx_load_event_counter(priv, tx)); + /* stats from NIC */ + if (skip_nic_stats) { + /* skip NIC tx stats */ + i += NIC_TX_STATS_REPORT_NUM; + continue; + } + for (j = 0; j < NIC_TX_STATS_REPORT_NUM; j++) { + u64 value = + be64_to_cpu(report_stats[tx_qid_to_stats_idx[ring] + j].value); + data[i++] = value; + } } } else { i += priv->tx_cfg.num_queues * NUM_GVE_TX_CNTS; } + kfree(rx_qid_to_stats_idx); + kfree(tx_qid_to_stats_idx); + /* AQ Stats */ data[i++] = priv->adminq_prod_cnt; data[i++] = priv->adminq_cmd_fail; diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c index b76fc547cf5d..0c94dda67ba4 100644 --- a/drivers/net/ethernet/google/gve/gve_main.c +++ b/drivers/net/ethernet/google/gve/gve_main.c @@ -101,9 +101,9 @@ static int gve_alloc_stats_report(struct gve_priv *priv) { int tx_stats_num, rx_stats_num; - tx_stats_num = (GVE_TX_STATS_REPORT_NUM) * + tx_stats_num = (GVE_TX_STATS_REPORT_NUM + NIC_TX_STATS_REPORT_NUM) * priv->tx_cfg.num_queues; - rx_stats_num = (GVE_RX_STATS_REPORT_NUM) * + rx_stats_num = (GVE_RX_STATS_REPORT_NUM + NIC_RX_STATS_REPORT_NUM) * priv->rx_cfg.num_queues; priv->stats_report_len = sizeof(struct gve_stats_report) + (tx_stats_num + rx_stats_num) *