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Message-Id: <20190128234507.32028-10-jakub.kicinski@netronome.com>
Date:   Mon, 28 Jan 2019 15:45:02 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     davem@...emloft.net
Cc:     oss-drivers@...ronome.com, netdev@...r.kernel.org,
        jiri@...nulli.us, f.fainelli@...il.com, andrew@...n.ch,
        mkubecek@...e.cz, dsahern@...il.com, simon.horman@...ronome.com,
        jesse.brandeburg@...el.com, maciejromanfijalkowski@...il.com,
        vasundhara-v.volam@...adcom.com, michael.chan@...adcom.com,
        shalomt@...lanox.com, idosch@...lanox.com,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [RFC 09/14] nfp: hstats: add driver and device per queue statistics

Report basic stats for all queues, per-queue.  Separate
device and driver statistics into different groups.

Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
---
 .../net/ethernet/netronome/nfp/nfp_hstat.c    | 133 ++++++++++++++++++
 1 file changed, 133 insertions(+)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_hstat.c b/drivers/net/ethernet/netronome/nfp/nfp_hstat.c
index d339008333bc..9300996e756c 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_hstat.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_hstat.c
@@ -37,9 +37,142 @@ static const struct rtnl_hstat_group nfp_hstat_vnic_nfd = {
 	.stats_cnt = 2,
 };
 
+/* NFD per-Q stats */
+static int
+nfp_hstat_vnic_nfd_get_queues(const struct net_device *dev,
+			      const struct rtnl_hstat_group *grp)
+{
+	struct nfp_net *nn = netdev_priv(dev);
+
+	return nn->max_r_vecs;
+}
+
+static int
+nfp_hstat_vnic_nfd_pq_get(struct net_device *dev,
+			  struct rtnl_hstat_req *req,
+			  const struct rtnl_hstat_group *grp)
+{
+	struct nfp_net *nn = netdev_priv(dev);
+	u32 queue, off;
+
+	queue = rtnl_hstat_qual_get(req, RTNL_HSTATS_QUAL_QUEUE);
+
+	off = NFP_NET_CFG_TXR_STATS(queue);
+	off += rtnl_hstat_is_rx(req) ?
+		0 : NFP_NET_CFG_RXR_STATS_BASE - NFP_NET_CFG_TXR_STATS_BASE;
+
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_PKTS, nn_readq(nn, off));
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_BYTES,
+			nn_readq(nn, off + 8));
+	return 0;
+}
+
+static const struct rtnl_hstat_group nfp_hstat_vnic_nfd_pq = {
+	.qualifiers = {
+		RTNL_HSTATS_QUALS_BASIC_BIDIR(DEV),
+		[RTNL_HSTATS_QUAL_QUEUE] = {
+			.get_max	= nfp_hstat_vnic_nfd_get_queues,
+		},
+	},
+
+	.get_stats = nfp_hstat_vnic_nfd_pq_get,
+	.stats	= {
+		[0] =	RTNL_HSTATS_STAT_LINUX_PKTS_BIT |
+			RTNL_HSTATS_STAT_LINUX_BYTES_BIT,
+	},
+	.stats_cnt = 2,
+};
+
+/* vNIC software stats */
+static int
+nfp_hstat_vnic_sw_rx_get(struct net_device *dev, struct rtnl_hstat_req *req,
+			 const struct rtnl_hstat_group *grp)
+{
+	struct nfp_net *nn = netdev_priv(dev);
+	struct nfp_net_r_vector *r_vec;
+
+	r_vec = &nn->r_vecs[rtnl_hstat_qual_get(req, RTNL_HSTATS_QUAL_QUEUE)];
+
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_PKTS, r_vec->rx_pkts);
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_BYTES, r_vec->rx_bytes);
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_CSUM_PARTIAL,
+			r_vec->hw_csum_rx_complete);
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_CSUM_UNNECESSARY,
+			r_vec->hw_csum_rx_ok + r_vec->hw_csum_rx_inner_ok);
+	return 0;
+}
+
+static const struct rtnl_hstat_group nfp_hstat_vnic_sw_rx = {
+	.qualifiers = {
+		RTNL_HSTATS_QUALS_BASIC(DRV, RX),
+		[RTNL_HSTATS_QUAL_QUEUE] = {
+			.get_max	= nfp_hstat_vnic_nfd_get_queues,
+		},
+	},
+
+	.get_stats = nfp_hstat_vnic_sw_rx_get,
+	.stats	= {
+		[0] =	RTNL_HSTATS_STAT_LINUX_PKTS_BIT |
+			RTNL_HSTATS_STAT_LINUX_BYTES_BIT |
+			RTNL_HSTATS_STAT_LINUX_CSUM_PARTIAL_BIT |
+			RTNL_HSTATS_STAT_LINUX_CSUM_UNNECESSARY_BIT,
+
+	},
+	.stats_cnt = 4,
+};
+
+static int
+nfp_hstat_vnic_sw_tx_get(struct net_device *dev, struct rtnl_hstat_req *req,
+			 const struct rtnl_hstat_group *grp)
+{
+	struct nfp_net *nn = netdev_priv(dev);
+	struct nfp_net_r_vector *r_vec;
+
+	r_vec = &nn->r_vecs[rtnl_hstat_qual_get(req, RTNL_HSTATS_QUAL_QUEUE)];
+
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_PKTS, r_vec->tx_pkts);
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_BYTES, r_vec->tx_bytes);
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_BUSY, r_vec->tx_busy);
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_CSUM_PARTIAL,
+			r_vec->hw_csum_tx + r_vec->hw_csum_tx_inner);
+	rtnl_hstat_dump(req, IFLA_HSTATS_STAT_LINUX_SEGMENTATION_OFFLOAD_PKTS,
+			r_vec->tx_lso);
+	return 0;
+}
+
+static const struct rtnl_hstat_group nfp_hstat_vnic_sw_tx = {
+	.qualifiers = {
+		RTNL_HSTATS_QUALS_BASIC(DRV, TX),
+		[RTNL_HSTATS_QUAL_QUEUE] = {
+			.get_max	= nfp_hstat_vnic_nfd_get_queues,
+		},
+	},
+
+	.get_stats = nfp_hstat_vnic_sw_tx_get,
+	.stats	= {
+		[0] =	RTNL_HSTATS_STAT_LINUX_PKTS_BIT |
+			RTNL_HSTATS_STAT_LINUX_BYTES_BIT |
+			RTNL_HSTATS_STAT_LINUX_BUSY_BIT |
+			RTNL_HSTATS_STAT_LINUX_CSUM_PARTIAL_BIT |
+			RTNL_HSTATS_STAT_LINUX_SEGMENTATION_OFFLOAD_PKTS_BIT,
+	},
+	.stats_cnt = 5,
+};
+
+static const struct rtnl_hstat_group nfp_hstat_vnic_sw = {
+	.has_children = true,
+	.children = {
+		&nfp_hstat_vnic_sw_rx,
+		&nfp_hstat_vnic_sw_tx,
+		NULL,
+	},
+};
+
 int nfp_net_hstat_get_groups(const struct net_device *netdev,
 			     struct rtnl_hstat_req *req)
 {
+	rtnl_hstat_add_grp(req, &nfp_hstat_vnic_sw);
+	rtnl_hstat_add_grp(req, &nfp_hstat_vnic_nfd_pq);
 	rtnl_hstat_add_grp(req, &nfp_hstat_vnic_nfd);
 
 	return 0;
-- 
2.19.2

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