1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c
new file mode 100644
index 000000000..4fee74c02
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later
+/*
+ * Copyright 2008 - 2016 Freescale Semiconductor Inc.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/of_net.h>
+#include "dpaa_eth.h"
+#include "mac.h"
+
+static ssize_t dpaa_eth_show_addr(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
+	struct mac_device *mac_dev = priv->mac_dev;
+
+	if (mac_dev)
+		return sprintf(buf, "%llx",
+				(unsigned long long)mac_dev->res->start);
+	else
+		return sprintf(buf, "none");
+}
+
+static ssize_t dpaa_eth_show_fqids(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
+	struct dpaa_fq *prev = NULL;
+	char *prevstr = NULL;
+	struct dpaa_fq *tmp;
+	struct dpaa_fq *fq;
+	u32 first_fqid = 0;
+	u32 last_fqid = 0;
+	ssize_t bytes = 0;
+	char *str;
+	int i = 0;
+
+	list_for_each_entry_safe(fq, tmp, &priv->dpaa_fq_list, list) {
+		switch (fq->fq_type) {
+		case FQ_TYPE_RX_DEFAULT:
+			str = "Rx default";
+			break;
+		case FQ_TYPE_RX_ERROR:
+			str = "Rx error";
+			break;
+		case FQ_TYPE_RX_PCD:
+			str = "Rx PCD";
+			break;
+		case FQ_TYPE_TX_CONFIRM:
+			str = "Tx default confirmation";
+			break;
+		case FQ_TYPE_TX_CONF_MQ:
+			str = "Tx confirmation (mq)";
+			break;
+		case FQ_TYPE_TX_ERROR:
+			str = "Tx error";
+			break;
+		case FQ_TYPE_TX:
+			str = "Tx";
+			break;
+		default:
+			str = "Unknown";
+		}
+
+		if (prev && (abs(fq->fqid - prev->fqid) != 1 ||
+			     str != prevstr)) {
+			if (last_fqid == first_fqid)
+				bytes += sprintf(buf + bytes,
+					"%s: %d\n", prevstr, prev->fqid);
+			else
+				bytes += sprintf(buf + bytes,
+					"%s: %d - %d\n", prevstr,
+					first_fqid, last_fqid);
+		}
+
+		if (prev && abs(fq->fqid - prev->fqid) == 1 &&
+		    str == prevstr) {
+			last_fqid = fq->fqid;
+		} else {
+			first_fqid = fq->fqid;
+			last_fqid = fq->fqid;
+		}
+
+		prev = fq;
+		prevstr = str;
+		i++;
+	}
+
+	if (prev) {
+		if (last_fqid == first_fqid)
+			bytes += sprintf(buf + bytes, "%s: %d\n", prevstr,
+					prev->fqid);
+		else
+			bytes += sprintf(buf + bytes, "%s: %d - %d\n", prevstr,
+					first_fqid, last_fqid);
+	}
+
+	return bytes;
+}
+
+static ssize_t dpaa_eth_show_bpids(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
+	ssize_t bytes = 0;
+
+	bytes += snprintf(buf + bytes, PAGE_SIZE - bytes, "%u\n",
+				  priv->dpaa_bp->bpid);
+
+	return bytes;
+}
+
+static struct device_attribute dpaa_eth_attrs[] = {
+	__ATTR(device_addr, 0444, dpaa_eth_show_addr, NULL),
+	__ATTR(fqids, 0444, dpaa_eth_show_fqids, NULL),
+	__ATTR(bpids, 0444, dpaa_eth_show_bpids, NULL),
+};
+
+void dpaa_eth_sysfs_init(struct device *dev)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
+		if (device_create_file(dev, &dpaa_eth_attrs[i])) {
+			dev_err(dev, "Error creating sysfs file\n");
+			while (i > 0)
+				device_remove_file(dev, &dpaa_eth_attrs[--i]);
+			return;
+		}
+}
+
+void dpaa_eth_sysfs_remove(struct device *dev)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
+		device_remove_file(dev, &dpaa_eth_attrs[i]);
+}