linux-kernel - [net-next PATCH v11 11/11] octeontx2-pf: Implement offload stats ndo for representors

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Message-ID: <20240822132031.29494-12-gakula@marvell.com>
Date: Thu, 22 Aug 2024 18:50:31 +0530
From: Geetha sowjanya <gakula@...vell.com>
To: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <kuba@...nel.org>, <davem@...emloft.net>, <pabeni@...hat.com>,
        <jiri@...nulli.us>, <edumazet@...gle.com>, <sgoutham@...vell.com>,
        <gakula@...vell.com>, <sbhatta@...vell.com>, <hkelam@...vell.com>
Subject: [net-next PATCH v11 11/11] octeontx2-pf: Implement offload stats ndo for representors

Implement the offload stat ndo by fetching the HW stats
of rx/tx queues attached to the representor.

Signed-off-by: Geetha sowjanya <gakula@...vell.com>
Reviewed-by: Simon Horman <horms@...nel.org>
---
 .../marvell/octeontx2/nic/otx2_common.c       |  2 +
 .../net/ethernet/marvell/octeontx2/nic/rep.c  | 41 +++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index 4c11c420399b..b1251f80a569 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -83,6 +83,7 @@ int otx2_update_rq_stats(struct otx2_nic *pfvf, int qidx)
 	otx2_nix_rq_op_stats(&rq->stats, pfvf, qidx);
 	return 1;
 }
+EXPORT_SYMBOL(otx2_update_rq_stats);
 
 int otx2_update_sq_stats(struct otx2_nic *pfvf, int qidx)
 {
@@ -99,6 +100,7 @@ int otx2_update_sq_stats(struct otx2_nic *pfvf, int qidx)
 	otx2_nix_sq_op_stats(&sq->stats, pfvf, qidx);
 	return 1;
 }
+EXPORT_SYMBOL(otx2_update_sq_stats);
 
 void otx2_get_dev_stats(struct otx2_nic *pfvf)
 {
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/rep.c b/drivers/net/ethernet/marvell/octeontx2/nic/rep.c
index aab1784b5134..1abc6591e589 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/rep.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/rep.c
@@ -28,6 +28,45 @@ MODULE_DESCRIPTION(DRV_STRING);
 MODULE_LICENSE("GPL");
 MODULE_DEVICE_TABLE(pci, rvu_rep_id_table);
 
+static int
+rvu_rep_sp_stats64(const struct net_device *dev,
+		   struct rtnl_link_stats64 *stats)
+{
+	struct rep_dev *rep = netdev_priv(dev);
+	struct otx2_nic *priv = rep->mdev;
+	struct otx2_rcv_queue *rq;
+	struct otx2_snd_queue *sq;
+	u16 qidx = rep->rep_id;
+
+	otx2_update_rq_stats(priv, qidx);
+	rq = &priv->qset.rq[qidx];
+
+	otx2_update_sq_stats(priv, qidx);
+	sq = &priv->qset.sq[qidx];
+
+	stats->tx_bytes = sq->stats.bytes;
+	stats->tx_packets = sq->stats.pkts;
+	stats->rx_bytes = rq->stats.bytes;
+	stats->rx_packets = rq->stats.pkts;
+	return 0;
+}
+
+static bool
+rvu_rep_has_offload_stats(const struct net_device *dev, int attr_id)
+{
+	return attr_id == IFLA_OFFLOAD_XSTATS_CPU_HIT;
+}
+
+static int
+rvu_rep_get_offload_stats(int attr_id, const struct net_device *dev,
+			  void *sp)
+{
+	if (attr_id == IFLA_OFFLOAD_XSTATS_CPU_HIT)
+		return rvu_rep_sp_stats64(dev, (struct rtnl_link_stats64 *)sp);
+
+	return -EINVAL;
+}
+
 static int rvu_rep_dl_port_fn_hw_addr_get(struct devlink_port *port,
 					  u8 *hw_addr, int *hw_addr_len,
 					  struct netlink_ext_ack *extack)
@@ -327,6 +366,8 @@ static const struct net_device_ops rvu_rep_netdev_ops = {
 	.ndo_start_xmit		= rvu_rep_xmit,
 	.ndo_get_stats64	= rvu_rep_get_stats64,
 	.ndo_change_mtu		= rvu_rep_change_mtu,
+	.ndo_has_offload_stats	= rvu_rep_has_offload_stats,
+	.ndo_get_offload_stats	= rvu_rep_get_offload_stats,
 };
 
 static int rvu_rep_napi_init(struct otx2_nic *priv,
-- 
2.25.1