From patchwork Tue Nov 23 16:39:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Lobakin X-Patchwork-Id: 12634763 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E54BC433EF for ; Tue, 23 Nov 2021 16:42:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238116AbhKWQpu (ORCPT ); Tue, 23 Nov 2021 11:45:50 -0500 Received: from mga02.intel.com ([134.134.136.20]:20347 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238665AbhKWQpR (ORCPT ); Tue, 23 Nov 2021 11:45:17 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10177"; a="222282476" X-IronPort-AV: E=Sophos;i="5.87,258,1631602800"; d="scan'208";a="222282476" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2021 08:41:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,258,1631602800"; d="scan'208";a="456747199" Received: from irvmail001.ir.intel.com ([10.43.11.63]) by orsmga003.jf.intel.com with ESMTP; 23 Nov 2021 08:41:43 -0800 Received: from newjersey.igk.intel.com (newjersey.igk.intel.com [10.102.20.203]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id 1ANGf4Wr016784; Tue, 23 Nov 2021 16:41:40 GMT From: Alexander Lobakin To: "David S. Miller" , Jakub Kicinski Cc: Alexander Lobakin , Jesse Brandeburg , Michal Swiatkowski , Maciej Fijalkowski , Jonathan Corbet , Shay Agroskin , Arthur Kiyanovski , David Arinzon , Noam Dagan , Saeed Bishara , Ioana Ciornei , Claudiu Manoil , Tony Nguyen , Thomas Petazzoni , Marcin Wojtas , Russell King , Saeed Mahameed , Leon Romanovsky , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , =?utf-8?q?Toke_H=C3=B8iland-J?= =?utf-8?q?=C3=B8rgensen?= , John Fastabend , Edward Cree , Martin Habets , "Michael S. Tsirkin" , Jason Wang , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Lorenzo Bianconi , Yajun Deng , Sergey Ryazanov , David Ahern , Andrei Vagin , Johannes Berg , Vladimir Oltean , Cong Wang , netdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, bpf@vger.kernel.org, virtualization@lists.linux-foundation.org Subject: [PATCH v2 net-next 15/26] veth: add generic XDP stats callbacks Date: Tue, 23 Nov 2021 17:39:44 +0100 Message-Id: <20211123163955.154512-16-alexandr.lobakin@intel.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211123163955.154512-1-alexandr.lobakin@intel.com> References: <20211123163955.154512-1-alexandr.lobakin@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Expose veth's 7 per-channel counters by providing callbacks for generic XDP stats infra. Signed-off-by: Alexander Lobakin Reviewed-by: Jesse Brandeburg --- drivers/net/veth.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) -- 2.33.1 diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 3eb24a5c2d45..c12209fbd1bd 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -437,6 +437,71 @@ static void veth_get_stats64(struct net_device *dev, rcu_read_unlock(); } +static int veth_get_xdp_stats_nch(const struct net_device *dev, u32 attr_id) +{ + switch (attr_id) { + case IFLA_XDP_XSTATS_TYPE_XDP: + return max(dev->real_num_rx_queues, dev->real_num_tx_queues); + default: + return -EOPNOTSUPP; + } +} + +static int veth_get_xdp_stats(const struct net_device *dev, u32 attr_id, + void *attr_data) +{ + const struct veth_priv *priv = netdev_priv(dev); + const struct net_device *peer = rtnl_dereference(priv->peer); + struct ifla_xdp_stats *xdp_iter, *xdp_stats = attr_data; + const struct veth_rq_stats *rq_stats; + u64 xmit_packets, xmit_errors; + u32 i, start; + + switch (attr_id) { + case IFLA_XDP_XSTATS_TYPE_XDP: + break; + default: + return -EOPNOTSUPP; + } + + for (i = 0; i < dev->real_num_rx_queues; i++) { + rq_stats = &priv->rq[i].stats; + xdp_iter = xdp_stats + i; + + do { + start = u64_stats_fetch_begin_irq(&rq_stats->syncp); + + xdp_iter->errors = rq_stats->vs.xdp_errors; + xdp_iter->redirect = rq_stats->vs.xdp_redirect; + xdp_iter->drop = rq_stats->vs.xdp_drops; + xdp_iter->tx = rq_stats->vs.xdp_tx; + xdp_iter->tx_errors = rq_stats->vs.xdp_tx_err; + } while (u64_stats_fetch_retry_irq(&rq_stats->syncp, start)); + } + + if (!peer) + return 0; + + priv = netdev_priv(peer); + + for (i = 0; i < peer->real_num_rx_queues; i++) { + rq_stats = &priv->rq[i].stats; + xdp_iter = xdp_stats + (i % dev->real_num_tx_queues); + + do { + start = u64_stats_fetch_begin_irq(&rq_stats->syncp); + + xmit_packets = rq_stats->vs.peer_tq_xdp_xmit; + xmit_errors = rq_stats->vs.peer_tq_xdp_xmit_err; + } while (u64_stats_fetch_retry_irq(&rq_stats->syncp, start)); + + xdp_iter->xmit_packets += xmit_packets; + xdp_iter->xmit_errors += xmit_errors; + } + + return 0; +} + /* fake multicast ability */ static void veth_set_multicast_list(struct net_device *dev) { @@ -1537,6 +1602,8 @@ static const struct net_device_ops veth_netdev_ops = { .ndo_stop = veth_close, .ndo_start_xmit = veth_xmit, .ndo_get_stats64 = veth_get_stats64, + .ndo_get_xdp_stats_nch = veth_get_xdp_stats_nch, + .ndo_get_xdp_stats = veth_get_xdp_stats, .ndo_set_rx_mode = veth_set_multicast_list, .ndo_set_mac_address = eth_mac_addr, #ifdef CONFIG_NET_POLL_CONTROLLER