Subject: [PATCH net-next 2/2] net: cadence: macb: Report standard stats

From: Sean Anderson <[email-masked]>
Date: Fri, 14 Feb 2025 16:27:03 -0500

Report standard statistics using the dedicated callbacks instead of
get_ethtool_stats.

OCTTX is split over two registers. Accumulating these registers
separately in gem_stats just means we need to combine them again later.
Instead, combine these stats before saving them, like is done for
ethtool_stats.

Signed-off-by: Sean Anderson <[email-masked]>
---

 drivers/net/ethernet/cadence/macb.h      |   6 +-
 drivers/net/ethernet/cadence/macb_main.c | 160 ++++++++++++++++++++++-
 2 files changed, 160 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index b4aa2b165bf3..f69b2b7c8802 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -975,8 +975,7 @@ struct macb_stats {
 };
 
 struct gem_stats {
-	u64	tx_octets_31_0;
-	u64	tx_octets_47_32;
+	u64	tx_octets;
 	u64	tx_frames;
 	u64	tx_broadcast_frames;
 	u64	tx_multicast_frames;
@@ -995,8 +994,7 @@ struct gem_stats {
 	u64	tx_late_collisions;
 	u64	tx_deferred_frames;
 	u64	tx_carrier_sense_errors;
-	u64	rx_octets_31_0;
-	u64	rx_octets_47_32;
+	u64	rx_octets;
 	u64	rx_frames;
 	u64	rx_broadcast_frames;
 	u64	rx_multicast_frames;
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 86f0d705e354..4878c14121fb 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -3071,7 +3071,7 @@ static void gem_update_stats(struct macb *bp)
 	unsigned int i, q, idx;
 	unsigned long *stat;
 
-	u64 *p = &bp->hw_stats.gem.tx_octets_31_0;
+	u64 *p = &bp->hw_stats.gem.tx_octets;
 
 	for (i = 0; i < GEM_STATS_LEN; ++i, ++p) {
 		u32 offset = gem_statistics[i].offset;
@@ -3084,7 +3084,7 @@ static void gem_update_stats(struct macb *bp)
 			/* Add GEM_OCTTXH, GEM_OCTRXH */
 			val = bp->macb_reg_readl(bp, offset + 4);
 			bp->ethtool_stats[i] += ((u64)val) << 32;
-			*(++p) += val;
+			*(p++) += ((u64)val) << 32;
 		}
 	}
 
@@ -3226,6 +3226,154 @@ static void macb_get_stats(struct net_device *dev,
 	/* Don't know about heartbeat or window errors... */
 }
 
+static void macb_get_pause_stats(struct net_device *dev,
+				 struct ethtool_pause_stats *pause_stats)
+{
+	struct macb *bp = netdev_priv(dev);
+	struct macb_stats *hwstat = &bp->hw_stats.macb;
+
+	macb_update_stats(bp);
+	pause_stats->tx_pause_frames = hwstat->tx_pause_frames;
+	pause_stats->rx_pause_frames = hwstat->rx_pause_frames;
+}
+
+static void gem_get_pause_stats(struct net_device *dev,
+				struct ethtool_pause_stats *pause_stats)
+{
+	struct macb *bp = netdev_priv(dev);
+	struct gem_stats *hwstat = &bp->hw_stats.gem;
+
+	gem_update_stats(bp);
+	pause_stats->tx_pause_frames = hwstat->tx_pause_frames;
+	pause_stats->rx_pause_frames = hwstat->rx_pause_frames;
+}
+
+static void macb_get_eth_mac_stats(struct net_device *dev,
+				   struct ethtool_eth_mac_stats *mac_stats)
+{
+	struct macb *bp = netdev_priv(dev);
+	struct macb_stats *hwstat = &bp->hw_stats.macb;
+
+	macb_update_stats(bp);
+	mac_stats->FramesTransmittedOK = hwstat->tx_ok;
+	mac_stats->SingleCollisionFrames = hwstat->tx_single_cols;
+	mac_stats->MultipleCollisionFrames = hwstat->tx_multiple_cols;
+	mac_stats->FramesReceivedOK = hwstat->rx_ok;
+	mac_stats->FrameCheckSequenceErrors = hwstat->rx_fcs_errors;
+	mac_stats->AlignmentErrors = hwstat->rx_align_errors;
+	mac_stats->FramesWithDeferredXmissions = hwstat->tx_deferred;
+	mac_stats->LateCollisions = hwstat->tx_late_cols;
+	mac_stats->FramesAbortedDueToXSColls = hwstat->tx_excessive_cols;
+	mac_stats->FramesLostDueToIntMACXmitError = hwstat->tx_underruns;
+	mac_stats->CarrierSenseErrors = hwstat->tx_carrier_errors;
+	mac_stats->FramesLostDueToIntMACRcvError = hwstat->rx_overruns;
+	mac_stats->InRangeLengthErrors = hwstat->rx_length_mismatch;
+	mac_stats->FrameTooLongErrors = hwstat->rx_oversize_pkts;
+}
+
+static void gem_get_eth_mac_stats(struct net_device *dev,
+				  struct ethtool_eth_mac_stats *mac_stats)
+{
+	struct macb *bp = netdev_priv(dev);
+	struct gem_stats *hwstat = &bp->hw_stats.gem;
+
+	gem_update_stats(bp);
+	mac_stats->FramesTransmittedOK = hwstat->tx_frames;
+	mac_stats->SingleCollisionFrames = hwstat->tx_single_collision_frames;
+	mac_stats->MultipleCollisionFrames =
+		hwstat->tx_multiple_collision_frames;
+	mac_stats->FramesReceivedOK = hwstat->rx_frames;
+	mac_stats->FrameCheckSequenceErrors =
+		hwstat->rx_frame_check_sequence_errors;
+	mac_stats->AlignmentErrors = hwstat->rx_alignment_errors;
+	mac_stats->OctetsTransmittedOK = hwstat->tx_octets;
+	mac_stats->FramesWithDeferredXmissions = hwstat->tx_deferred_frames;
+	mac_stats->LateCollisions = hwstat->tx_late_collisions;
+	mac_stats->FramesAbortedDueToXSColls = hwstat->tx_excessive_collisions;
+	mac_stats->FramesLostDueToIntMACXmitError = hwstat->tx_underrun;
+	mac_stats->CarrierSenseErrors = hwstat->tx_carrier_sense_errors;
+	mac_stats->OctetsReceivedOK = hwstat->rx_octets;
+	mac_stats->MulticastFramesXmittedOK = hwstat->tx_multicast_frames;
+	mac_stats->BroadcastFramesXmittedOK = hwstat->tx_broadcast_frames;
+	mac_stats->MulticastFramesReceivedOK = hwstat->rx_multicast_frames;
+	mac_stats->BroadcastFramesReceivedOK = hwstat->rx_broadcast_frames;
+	mac_stats->InRangeLengthErrors = hwstat->rx_length_field_frame_errors;
+	mac_stats->FrameTooLongErrors = hwstat->rx_oversize_frames;
+}
+
+/* TODO: Report SQE test errors when added to phy_stats */
+static void macb_get_eth_phy_stats(struct net_device *dev,
+				   struct ethtool_eth_phy_stats *phy_stats)
+{
+	struct macb *bp = netdev_priv(dev);
+	struct macb_stats *hwstat = &bp->hw_stats.macb;
+
+	macb_update_stats(bp);
+	phy_stats->SymbolErrorDuringCarrier = hwstat->rx_symbol_errors;
+}
+
+static void gem_get_eth_phy_stats(struct net_device *dev,
+				  struct ethtool_eth_phy_stats *phy_stats)
+{
+	struct macb *bp = netdev_priv(dev);
+	struct gem_stats *hwstat = &bp->hw_stats.gem;
+
+	gem_update_stats(bp);
+	phy_stats->SymbolErrorDuringCarrier = hwstat->rx_symbol_errors;
+}
+
+static void macb_get_rmon_stats(struct net_device *dev,
+				struct ethtool_rmon_stats *rmon_stats,
+				const struct ethtool_rmon_hist_range **ranges)
+{
+	struct macb *bp = netdev_priv(dev);
+	struct macb_stats *hwstat = &bp->hw_stats.macb;
+
+	macb_update_stats(bp);
+	rmon_stats->undersize_pkts = hwstat->rx_undersize_pkts;
+	rmon_stats->oversize_pkts = hwstat->rx_oversize_pkts;
+	rmon_stats->jabbers = hwstat->rx_jabbers;
+}
+
+static const struct ethtool_rmon_hist_range gem_rmon_ranges[] = {
+	{   64,    64 },
+	{   65,   127 },
+	{  128,   255 },
+	{  256,   511 },
+	{  512,  1023 },
+	{ 1024,  1518 },
+	{ 1519, 16384 },
+	{ },
+};
+
+static void gem_get_rmon_stats(struct net_device *dev,
+			       struct ethtool_rmon_stats *rmon_stats,
+			       const struct ethtool_rmon_hist_range **ranges)
+{
+	struct macb *bp = netdev_priv(dev);
+	struct gem_stats *hwstat = &bp->hw_stats.gem;
+
+	gem_update_stats(bp);
+	rmon_stats->undersize_pkts = hwstat->rx_undersized_frames;
+	rmon_stats->oversize_pkts = hwstat->rx_oversize_frames;
+	rmon_stats->jabbers = hwstat->rx_jabbers;
+	rmon_stats->hist[0] = hwstat->rx_64_byte_frames;
+	rmon_stats->hist[1] = hwstat->rx_65_127_byte_frames;
+	rmon_stats->hist[2] = hwstat->rx_128_255_byte_frames;
+	rmon_stats->hist[3] = hwstat->rx_256_511_byte_frames;
+	rmon_stats->hist[4] = hwstat->rx_512_1023_byte_frames;
+	rmon_stats->hist[5] = hwstat->rx_1024_1518_byte_frames;
+	rmon_stats->hist[6] = hwstat->rx_greater_than_1518_byte_frames;
+	rmon_stats->hist_tx[0] = hwstat->tx_64_byte_frames;
+	rmon_stats->hist_tx[1] = hwstat->tx_65_127_byte_frames;
+	rmon_stats->hist_tx[2] = hwstat->tx_128_255_byte_frames;
+	rmon_stats->hist_tx[3] = hwstat->tx_256_511_byte_frames;
+	rmon_stats->hist_tx[4] = hwstat->tx_512_1023_byte_frames;
+	rmon_stats->hist_tx[5] = hwstat->tx_1024_1518_byte_frames;
+	rmon_stats->hist_tx[6] = hwstat->tx_greater_than_1518_byte_frames;
+	*ranges = gem_rmon_ranges;
+}
+
 static int macb_get_regs_len(struct net_device *netdev)
 {
 	return MACB_GREGS_NBR * sizeof(u32);
@@ -3752,6 +3900,10 @@ static const struct ethtool_ops macb_ethtool_ops = {
 	.get_regs		= macb_get_regs,
 	.get_link		= ethtool_op_get_link,
 	.get_ts_info		= ethtool_op_get_ts_info,
+	.get_pause_stats	= macb_get_pause_stats,
+	.get_eth_mac_stats	= macb_get_eth_mac_stats,
+	.get_eth_phy_stats	= macb_get_eth_phy_stats,
+	.get_rmon_stats		= macb_get_rmon_stats,
 	.get_wol		= macb_get_wol,
 	.set_wol		= macb_set_wol,
 	.get_link_ksettings     = macb_get_link_ksettings,
@@ -3770,6 +3922,10 @@ static const struct ethtool_ops gem_ethtool_ops = {
 	.get_ethtool_stats	= gem_get_ethtool_stats,
 	.get_strings		= gem_get_ethtool_strings,
 	.get_sset_count		= gem_get_sset_count,
+	.get_pause_stats	= gem_get_pause_stats,
+	.get_eth_mac_stats	= gem_get_eth_mac_stats,
+	.get_eth_phy_stats	= gem_get_eth_phy_stats,
+	.get_rmon_stats		= gem_get_rmon_stats,
 	.get_link_ksettings     = macb_get_link_ksettings,
 	.set_link_ksettings     = macb_set_link_ksettings,
 	.get_ringparam		= macb_get_ringparam,
-- 
2.35.1.1320.gc452695387.dirty