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Message-ID: <20240420-port-mirroring-v3-5-0fe3ac52006d@microchip.com>
Date: Sat, 20 Apr 2024 21:29:14 +0200
From: Daniel Machon <daniel.machon@...rochip.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
<pabeni@...hat.com>, Lars Povlsen <lars.povlsen@...rochip.com>, "Steen
Hegelund" <Steen.Hegelund@...rochip.com>, <UNGLinuxDriver@...rochip.com>,
Russell King <linux@...linux.org.uk>
CC: <netdev@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, Horatiu Vultur
<horatiu.vultur@...rochip.com>, "Russell King (Oracle)"
<rmk+kernel@...linux.org.uk>, Uwe Kleine-König
<u.kleine-koenig@...gutronix.de>, Vladimir Oltean <vladimir.oltean@....com>,
Yue Haibing <yuehaibing@...wei.com>, Daniel Machon
<daniel.machon@...rochip.com>
Subject: [PATCH net-next v3 5/5] net: sparx5: add support for matchall
mirror stats
Add support for tc matchall mirror stats. When a new matchall mirror
rule is added, the baseline stats for that port is saved.
Signed-off-by: Daniel Machon <daniel.machon@...rochip.com>
Reviewed-by: Steen Hegelund <Steen.Hegelund@...rochip.com>
---
.../net/ethernet/microchip/sparx5/sparx5_main.h | 3 ++
.../net/ethernet/microchip/sparx5/sparx5_mirror.c | 37 ++++++++++++++++++++++
.../ethernet/microchip/sparx5/sparx5_tc_matchall.c | 27 ++++++++++++++++
3 files changed, 67 insertions(+)
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
index 5d026e1670f5..1982ae03b4fe 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
@@ -174,6 +174,7 @@ struct sparx5_port {
struct phylink_config phylink_config;
struct phylink *phylink;
struct phylink_pcs phylink_pcs;
+ struct flow_stats mirror_stats;
u16 portno;
/* Ingress default VLAN (pvid) */
u16 pvid;
@@ -562,6 +563,8 @@ void sparx5_new_base_time(struct sparx5 *sparx5, const u32 cycle_time,
/* sparx5_mirror.c */
int sparx5_mirror_add(struct sparx5_mall_entry *entry);
void sparx5_mirror_del(struct sparx5_mall_entry *entry);
+void sparx5_mirror_stats(struct sparx5_mall_entry *entry,
+ struct flow_stats *fstats);
/* Clock period in picoseconds */
static inline u32 sparx5_clk_period(enum sparx5_core_clockfreq cclock)
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_mirror.c b/drivers/net/ethernet/microchip/sparx5/sparx5_mirror.c
index f029634a6a42..15db423be4aa 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_mirror.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_mirror.c
@@ -196,3 +196,40 @@ void sparx5_mirror_del(struct sparx5_mall_entry *entry)
mirror_idx,
SPX5_MIRROR_MONITOR_PORT_DEFAULT);
}
+
+void sparx5_mirror_stats(struct sparx5_mall_entry *entry,
+ struct flow_stats *fstats)
+{
+ struct sparx5_port *port = entry->port;
+ struct rtnl_link_stats64 new_stats;
+ struct flow_stats *old_stats;
+
+ old_stats = &entry->port->mirror_stats;
+ sparx5_get_stats64(port->ndev, &new_stats);
+
+ if (entry->ingress) {
+ flow_stats_update(fstats,
+ new_stats.rx_bytes - old_stats->bytes,
+ new_stats.rx_packets - old_stats->pkts,
+ new_stats.rx_dropped - old_stats->drops,
+ old_stats->lastused,
+ FLOW_ACTION_HW_STATS_IMMEDIATE);
+
+ old_stats->bytes = new_stats.rx_bytes;
+ old_stats->pkts = new_stats.rx_packets;
+ old_stats->drops = new_stats.rx_dropped;
+ old_stats->lastused = jiffies;
+ } else {
+ flow_stats_update(fstats,
+ new_stats.tx_bytes - old_stats->bytes,
+ new_stats.tx_packets - old_stats->pkts,
+ new_stats.tx_dropped - old_stats->drops,
+ old_stats->lastused,
+ FLOW_ACTION_HW_STATS_IMMEDIATE);
+
+ old_stats->bytes = new_stats.tx_bytes;
+ old_stats->pkts = new_stats.tx_packets;
+ old_stats->drops = new_stats.tx_dropped;
+ old_stats->lastused = jiffies;
+ }
+}
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_tc_matchall.c b/drivers/net/ethernet/microchip/sparx5/sparx5_tc_matchall.c
index 4f9ae026fa47..6b4d1d7b9730 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_tc_matchall.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_tc_matchall.c
@@ -96,6 +96,8 @@ static int sparx5_tc_matchall_replace(struct net_device *ndev,
}
return err;
}
+ /* Get baseline stats for this port */
+ sparx5_mirror_stats(mall_entry, &tmo->stats);
break;
case FLOW_ACTION_GOTO:
err = vcap_enable_lookups(sparx5->vcap_ctrl, ndev,
@@ -162,6 +164,29 @@ static int sparx5_tc_matchall_destroy(struct net_device *ndev,
return err;
}
+static int sparx5_tc_matchall_stats(struct net_device *ndev,
+ struct tc_cls_matchall_offload *tmo,
+ bool ingress)
+{
+ struct sparx5_port *port = netdev_priv(ndev);
+ struct sparx5 *sparx5 = port->sparx5;
+ struct sparx5_mall_entry *entry;
+
+ entry = sparx5_tc_matchall_entry_find(&sparx5->mall_entries,
+ tmo->cookie);
+ if (!entry)
+ return -ENOENT;
+
+ if (entry->type == FLOW_ACTION_MIRRED) {
+ sparx5_mirror_stats(entry, &tmo->stats);
+ } else {
+ NL_SET_ERR_MSG_MOD(tmo->common.extack, "Unsupported action");
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
int sparx5_tc_matchall(struct net_device *ndev,
struct tc_cls_matchall_offload *tmo,
bool ingress)
@@ -171,6 +196,8 @@ int sparx5_tc_matchall(struct net_device *ndev,
return sparx5_tc_matchall_replace(ndev, tmo, ingress);
case TC_CLSMATCHALL_DESTROY:
return sparx5_tc_matchall_destroy(ndev, tmo, ingress);
+ case TC_CLSMATCHALL_STATS:
+ return sparx5_tc_matchall_stats(ndev, tmo, ingress);
default:
return -EOPNOTSUPP;
}
--
2.34.1
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