dpaa_eth: add sysfs exports (846a86e2) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/net/ethernet/freescale/dpaa/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -8,4 +8,4 @@ ccflags-y += -I$(FMAN)

		obj-$(CONFIG_FSL_DPAA_ETH) += fsl_dpa.o

		fsl_dpa-objs += dpaa_eth.o dpaa_ethtool.o
		fsl_dpa-objs += dpaa_eth.o dpaa_ethtool.o dpaa_eth_sysfs.o

drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -2619,6 +2619,8 @@ static int dpaa_eth_probe(struct platform_device *pdev)
		if (err < 0)
		goto netdev_init_failed;

		dpaa_eth_sysfs_init(&net_dev->dev);

		netif_info(priv, probe, net_dev, "Probed interface %s\n",
		net_dev->name);

		@@ -2664,6 +2666,8 @@ static int dpaa_remove(struct platform_device *pdev)

		priv = netdev_priv(net_dev);

		dpaa_eth_sysfs_remove(dev);

		dev_set_drvdata(dev, NULL);
		unregister_netdev(net_dev);

drivers/net/ethernet/freescale/dpaa/dpaa_eth.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -177,4 +177,8 @@ struct dpaa_priv {

		/* from dpaa_ethtool.c */
		extern const struct ethtool_ops dpaa_ethtool_ops;

		/* from dpaa_eth_sysfs.c */
		void dpaa_eth_sysfs_remove(struct device *dev);
		void dpaa_eth_sysfs_init(struct device *dev);
		#endif /* __DPAA_H */

drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c

0 → 100644

+165 −0

Original line number	Diff line number	Diff line
		/* Copyright 2008-2016 Freescale Semiconductor Inc.
		*
		* Redistribution and use in source and binary forms, with or without
		* modification, are permitted provided that the following conditions are met:
		* * Redistributions of source code must retain the above copyright
		* notice, this list of conditions and the following disclaimer.
		* * Redistributions in binary form must reproduce the above copyright
		* notice, this list of conditions and the following disclaimer in the
		* documentation and/or other materials provided with the distribution.
		* * Neither the name of Freescale Semiconductor nor the
		* names of its contributors may be used to endorse or promote products
		* derived from this software without specific prior written permission.
		*
		*
		* ALTERNATIVELY, this software may be distributed under the terms of the
		* GNU General Public License ("GPL") as published by the Free Software
		* Foundation, either version 2 of that License or (at your option) any
		* later version.
		*
		* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
		* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
		* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
		* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
		* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
		* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
		* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
		* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
		* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*/

		#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_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;
		int i = 0;

		for (i = 0; i < DPAA_BPS_NUM; i++)
		bytes += snprintf(buf + bytes, PAGE_SIZE - bytes, "%u\n",
		priv->dpaa_bps[i]->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]);
		}