[Intel-wired-lan] [PATCH iwl-next v2 4/6] ice: print ethtool stats as part of Tx hang devlink health reporter

Mateusz Polchlopek
2024-07-12T09:44:57Z

From: Przemek Kitszel <przemyslaw.kitszel@intel.com>

Print the ethtool stats as part of Tx hang devlink health dump.

Move the declarations of ethtool functions that devlink health uses out
to a new file: ice_ethtool_common.h

To utilize our existing ethtool code in this context, convert it to
non-static.

Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Igor Bagnucki <igor.bagnucki@intel.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
---
.../intel/ice/devlink/devlink_health.c | 32 +++++++++++++++++++
drivers/net/ethernet/intel/ice/ice_ethtool.c | 10 +++---
drivers/net/ethernet/intel/ice/ice_ethtool.h | 2 ++
.../ethernet/intel/ice/ice_ethtool_common.h | 19 +++++++++++
4 files changed, 58 insertions(+), 5 deletions(-)
create mode 100644 drivers/net/ethernet/intel/ice/ice_ethtool_common.h

diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_health.c b/drivers/net/ethernet/intel/ice/devlink/devlink_health.c
index 41f203cbdf6a..2fbf6f08d0f6 100644
--- a/drivers/net/ethernet/intel/ice/devlink/devlink_health.c
+++ b/drivers/net/ethernet/intel/ice/devlink/devlink_health.c
@@ -3,6 +3,7 @@

#include "devlink_health.h"
#include "ice.h"
+#include "ice_ethtool_common.h"

#define ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, obj, name) \
devlink_fmsg_put(fmsg, #name, (obj)->name)
@@ -32,6 +33,36 @@ static void ice_devlink_health_report(struct devlink_health_reporter *reporter,
}
}

+static void ice_dump_ethtool_stats_to_fmsg(struct devlink_fmsg *fmsg,
+ struct net_device *netdev)
+{
+ const u32 string_set = ETH_SS_STATS;
+ u64 *stats;
+ u8 *names;
+ int scnt;
+
+ scnt = ice_get_sset_count(netdev, string_set);
+ devlink_fmsg_put(fmsg, "stats-cnt", (u32)scnt);
+ if (scnt <= 0)
+ return;
+
+ names = kcalloc(scnt, ETH_GSTRING_LEN, GFP_KERNEL);
+ stats = kcalloc(scnt, sizeof(*stats), GFP_KERNEL);
+ if (!names || !stats)
+ goto out;
+
+ ice_get_strings(netdev, string_set, names);
+ ice_get_ethtool_stats(netdev, NULL, stats);
+
+ devlink_fmsg_obj_nest_start(fmsg);
+ for (int i = 0; i < scnt; ++i)
+ devlink_fmsg_put(fmsg, &names[i * ETH_GSTRING_LEN], stats[i]);
+ devlink_fmsg_obj_nest_end(fmsg);
+out:
+ kfree(names);
+ kfree(stats);
+}
+
/**
* ice_fmsg_put_ptr - put hex value of pointer into fmsg
*
@@ -76,6 +107,7 @@ static int ice_tx_hang_reporter_dump(struct devlink_health_reporter *reporter,
ice_fmsg_put_ptr(fmsg, "dma-ptr", (void *)(long)event->tx_ring->dma);
devlink_fmsg_binary_pair_put(fmsg, "desc", event->tx_ring->desc,
(event->tx_ring->count * sizeof(struct ice_tx_desc)));
+ ice_dump_ethtool_stats_to_fmsg(fmsg, event->tx_ring->vsi->netdev);
devlink_fmsg_obj_nest_end(fmsg);

return 0;
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 39d2652c3ee1..bc431e692b28 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -1519,7 +1519,7 @@ __ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data,
}
}

-static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
+void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
struct ice_netdev_priv *np = netdev_priv(netdev);

@@ -1897,7 +1897,7 @@ static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
return ret;
}

-static int ice_get_sset_count(struct net_device *netdev, int sset)
+int ice_get_sset_count(struct net_device *netdev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
@@ -2000,9 +2000,9 @@ __ice_get_ethtool_stats(struct net_device *netdev,
}
}

-static void
-ice_get_ethtool_stats(struct net_device *netdev,
- struct ethtool_stats __always_unused *stats, u64 *data)
+void ice_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats __always_unused *stats,
+ u64 *data)
{
struct ice_netdev_priv *np = netdev_priv(netdev);

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.h b/drivers/net/ethernet/intel/ice/ice_ethtool.h
index 9acccae38625..fd021d2813f8 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.h
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.h
@@ -4,6 +4,8 @@
#ifndef _ICE_ETHTOOL_H_
#define _ICE_ETHTOOL_H_

+#include "ice_ethtool_common.h"
+
struct ice_phy_type_to_ethtool {
u64 aq_link_speed;
u8 link_mode;
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_common.h b/drivers/net/ethernet/intel/ice/ice_ethtool_common.h
new file mode 100644
index 000000000000..0c772056f006
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool_common.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2024, Intel Corporation. */
+
+#ifndef _ICE_ETHTOOL_COMMON_H_
+#define _ICE_ETHTOOL_COMMON_H_
+
+/**
+ * DOC: ice_ethtool_common.h
+ *
+ * This header is for ethtool related code that is reused in other places.
+ */
+
+void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data);
+int ice_get_sset_count(struct net_device *netdev, int sset);
+void ice_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats __always_unused *stats,
+ u64 *data);
+
+#endif /* _ICE_ETHTOOL_COMMON_H_ */
--
2.38.1