Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 158 insertions, 0 deletions

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
new file mode 100644
index 000000000..8356af463
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/* Copyright 2015 Freescale Semiconductor Inc.
+ * Copyright 2018-2019 NXP
+ */
+#include <linux/module.h>
+#include <linux/debugfs.h>
+#include "dpaa2-eth.h"
+#include "dpaa2-eth-debugfs.h"
+
+#define DPAA2_ETH_DBG_ROOT "dpaa2-eth"
+
+static struct dentry *dpaa2_dbg_root;
+
+static int dpaa2_dbg_cpu_show(struct seq_file *file, void *offset)
+{
+	struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
+	struct rtnl_link_stats64 *stats;
+	struct dpaa2_eth_drv_stats *extras;
+	int i;
+
+	seq_printf(file, "Per-CPU stats for %s\n", priv->net_dev->name);
+	seq_printf(file, "%s%16s%16s%16s%16s%16s%16s%16s%16s%16s\n",
+		   "CPU", "Rx", "Rx Err", "Rx SG", "Tx", "Tx Err", "Tx conf",
+		   "Tx SG", "Tx converted to SG", "Enq busy");
+
+	for_each_online_cpu(i) {
+		stats = per_cpu_ptr(priv->percpu_stats, i);
+		extras = per_cpu_ptr(priv->percpu_extras, i);
+		seq_printf(file, "%3d%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu\n",
+			   i,
+			   stats->rx_packets,
+			   stats->rx_errors,
+			   extras->rx_sg_frames,
+			   stats->tx_packets,
+			   stats->tx_errors,
+			   extras->tx_conf_frames,
+			   extras->tx_sg_frames,
+			   extras->tx_converted_sg_frames,
+			   extras->tx_portal_busy);
+	}
+
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_cpu);
+
+static char *fq_type_to_str(struct dpaa2_eth_fq *fq)
+{
+	switch (fq->type) {
+	case DPAA2_RX_FQ:
+		return "Rx";
+	case DPAA2_TX_CONF_FQ:
+		return "Tx conf";
+	default:
+		return "N/A";
+	}
+}
+
+static int dpaa2_dbg_fqs_show(struct seq_file *file, void *offset)
+{
+	struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
+	struct dpaa2_eth_fq *fq;
+	u32 fcnt, bcnt;
+	int i, err;
+
+	seq_printf(file, "FQ stats for %s:\n", priv->net_dev->name);
+	seq_printf(file, "%s%16s%16s%16s%16s%16s\n",
+		   "VFQID", "CPU", "TC", "Type", "Frames", "Pending frames");
+
+	for (i = 0; i <  priv->num_fqs; i++) {
+		fq = &priv->fq[i];
+		err = dpaa2_io_query_fq_count(NULL, fq->fqid, &fcnt, &bcnt);
+		if (err)
+			fcnt = 0;
+
+		/* Skip FQs with no traffic */
+		if (!fq->stats.frames && !fcnt)
+			continue;
+
+		seq_printf(file, "%5d%16d%16d%16s%16llu%16u\n",
+			   fq->fqid,
+			   fq->target_cpu,
+			   fq->tc,
+			   fq_type_to_str(fq),
+			   fq->stats.frames,
+			   fcnt);
+	}
+
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_fqs);
+
+static int dpaa2_dbg_ch_show(struct seq_file *file, void *offset)
+{
+	struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
+	struct dpaa2_eth_channel *ch;
+	int i;
+
+	seq_printf(file, "Channel stats for %s:\n", priv->net_dev->name);
+	seq_printf(file, "%s%16s%16s%16s%16s%16s%16s\n",
+		   "CHID", "CPU", "Deq busy", "Frames", "CDANs",
+		   "Avg Frm/CDAN", "Buf count");
+
+	for (i = 0; i < priv->num_channels; i++) {
+		ch = priv->channel[i];
+		seq_printf(file, "%4d%16d%16llu%16llu%16llu%16llu%16d\n",
+			   ch->ch_id,
+			   ch->nctx.desired_cpu,
+			   ch->stats.dequeue_portal_busy,
+			   ch->stats.frames,
+			   ch->stats.cdan,
+			   div64_u64(ch->stats.frames, ch->stats.cdan),
+			   ch->buf_count);
+	}
+
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_ch);
+
+void dpaa2_dbg_add(struct dpaa2_eth_priv *priv)
+{
+	struct fsl_mc_device *dpni_dev;
+	struct dentry *dir;
+	char name[10];
+
+	/* Create a directory for the interface */
+	dpni_dev = to_fsl_mc_device(priv->net_dev->dev.parent);
+	snprintf(name, 10, "dpni.%d", dpni_dev->obj_desc.id);
+	dir = debugfs_create_dir(name, dpaa2_dbg_root);
+	priv->dbg.dir = dir;
+
+	/* per-cpu stats file */
+	debugfs_create_file("cpu_stats", 0444, dir, priv, &dpaa2_dbg_cpu_fops);
+
+	/* per-fq stats file */
+	debugfs_create_file("fq_stats", 0444, dir, priv, &dpaa2_dbg_fqs_fops);
+
+	/* per-fq stats file */
+	debugfs_create_file("ch_stats", 0444, dir, priv, &dpaa2_dbg_ch_fops);
+}
+
+void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv)
+{
+	debugfs_remove_recursive(priv->dbg.dir);
+}
+
+void dpaa2_eth_dbg_init(void)
+{
+	dpaa2_dbg_root = debugfs_create_dir(DPAA2_ETH_DBG_ROOT, NULL);
+	pr_debug("DPAA2-ETH: debugfs created\n");
+}
+
+void dpaa2_eth_dbg_exit(void)
+{
+	debugfs_remove(dpaa2_dbg_root);
+}