Print the ethtool stats and skb diagnostic information 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. Reviewed-by: Igor Bagnucki <[email protected]> Reviewed-by: Wojciech Drewek <[email protected]> Reviewed-by: Simon Horman <[email protected]> Signed-off-by: Mateusz Polchlopek <[email protected]> Tested-by: Pucha Himasekhar Reddy <[email protected]> (A Contingent worker at Intel) Signed-off-by: Przemek Kitszel <[email protected]> --- drivers/net/ethernet/intel/ice/ice_ethtool.h | 2 + .../ethernet/intel/ice/ice_ethtool_common.h | 19 ++++++++++ .../net/ethernet/intel/ice/devlink/health.c | 37 +++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_ethtool.c | 10 ++--- 4 files changed, 63 insertions(+), 5 deletions(-) create mode 100644 drivers/net/ethernet/intel/ice/ice_ethtool_common.h 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_ */ diff --git a/drivers/net/ethernet/intel/ice/devlink/health.c b/drivers/net/ethernet/intel/ice/devlink/health.c index b8c5a1c372dc..1626c5171152 100644 --- a/drivers/net/ethernet/intel/ice/devlink/health.c +++ b/drivers/net/ethernet/intel/ice/devlink/health.c @@ -3,6 +3,7 @@ #include "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) @@ -26,6 +27,36 @@ static void ice_devlink_health_report(struct devlink_health_reporter *reporter, devlink_health_report(reporter, msg, priv_ctx); } +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 * @@ -57,6 +88,9 @@ static int ice_tx_hang_reporter_dump(struct devlink_health_reporter *reporter, struct netlink_ext_ack *extack) { struct ice_tx_hang_event *event = priv_ctx; + struct sk_buff *skb; + + skb = event->tx_ring->tx_buf->skb; if (!event) return 0; @@ -71,8 +105,11 @@ static int ice_tx_hang_reporter_dump(struct devlink_health_reporter *reporter, devlink_fmsg_put(fmsg, "irq-mapping", event->tx_ring->q_vector->name); ice_fmsg_put_ptr(fmsg, "desc-ptr", event->tx_ring->desc); ice_fmsg_put_ptr(fmsg, "dma-ptr", (void *)(long)event->tx_ring->dma); + ice_fmsg_put_ptr(fmsg, "skb-ptr", skb); devlink_fmsg_binary_pair_put(fmsg, "desc", event->tx_ring->desc, event->tx_ring->count * sizeof(struct ice_tx_desc)); + devlink_fmsg_dump_skb(fmsg, skb); + 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 2924ac61300d..85a3b2326e7b 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -1529,7 +1529,7 @@ __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); @@ -1909,7 +1909,7 @@ 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: @@ -2012,9 +2012,9 @@ __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); -- 2.39.3
