forked from Minki/linux
dpaa_eth: add sysfs exports
Export Frame Queue and Buffer Pool IDs through sysfs. Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Madalin Bucur
David S. Miller
parent
b0ce0d02e4
commit
846a86e201
@ -8,4 +8,4 @@ ccflags-y += -I$(FMAN)
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obj-$(CONFIG_FSL_DPAA_ETH) += fsl_dpa.o
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fsl_dpa-objs += dpaa_eth.o dpaa_ethtool.o
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fsl_dpa-objs += dpaa_eth.o dpaa_ethtool.o dpaa_eth_sysfs.o
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@ -2619,6 +2619,8 @@ static int dpaa_eth_probe(struct platform_device *pdev)
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if (err < 0)
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goto netdev_init_failed;
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dpaa_eth_sysfs_init(&net_dev->dev);
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netif_info(priv, probe, net_dev, "Probed interface %s\n",
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net_dev->name);
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@ -2664,6 +2666,8 @@ static int dpaa_remove(struct platform_device *pdev)
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priv = netdev_priv(net_dev);
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dpaa_eth_sysfs_remove(dev);
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dev_set_drvdata(dev, NULL);
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unregister_netdev(net_dev);
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@ -177,4 +177,8 @@ struct dpaa_priv {
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/* from dpaa_ethtool.c */
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extern const struct ethtool_ops dpaa_ethtool_ops;
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/* from dpaa_eth_sysfs.c */
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void dpaa_eth_sysfs_remove(struct device *dev);
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void dpaa_eth_sysfs_init(struct device *dev);
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#endif /* __DPAA_H */
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165
drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c
Normal file
165
drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c
Normal file
@ -0,0 +1,165 @@
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/* Copyright 2008-2016 Freescale Semiconductor Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Freescale Semiconductor nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/io.h>
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#include <linux/of_net.h>
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#include "dpaa_eth.h"
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#include "mac.h"
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static ssize_t dpaa_eth_show_addr(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
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struct mac_device *mac_dev = priv->mac_dev;
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if (mac_dev)
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return sprintf(buf, "%llx",
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(unsigned long long)mac_dev->res->start);
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else
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return sprintf(buf, "none");
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}
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static ssize_t dpaa_eth_show_fqids(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
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struct dpaa_fq *prev = NULL;
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char *prevstr = NULL;
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struct dpaa_fq *tmp;
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struct dpaa_fq *fq;
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u32 first_fqid = 0;
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u32 last_fqid = 0;
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ssize_t bytes = 0;
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char *str;
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int i = 0;
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list_for_each_entry_safe(fq, tmp, &priv->dpaa_fq_list, list) {
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switch (fq->fq_type) {
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case FQ_TYPE_RX_DEFAULT:
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str = "Rx default";
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break;
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case FQ_TYPE_RX_ERROR:
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str = "Rx error";
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break;
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case FQ_TYPE_TX_CONFIRM:
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str = "Tx default confirmation";
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break;
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case FQ_TYPE_TX_CONF_MQ:
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str = "Tx confirmation (mq)";
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break;
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case FQ_TYPE_TX_ERROR:
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str = "Tx error";
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break;
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case FQ_TYPE_TX:
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str = "Tx";
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break;
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default:
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str = "Unknown";
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}
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if (prev && (abs(fq->fqid - prev->fqid) != 1 ||
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str != prevstr)) {
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if (last_fqid == first_fqid)
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bytes += sprintf(buf + bytes,
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"%s: %d\n", prevstr, prev->fqid);
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else
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bytes += sprintf(buf + bytes,
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"%s: %d - %d\n", prevstr,
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first_fqid, last_fqid);
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}
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if (prev && abs(fq->fqid - prev->fqid) == 1 &&
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str == prevstr) {
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last_fqid = fq->fqid;
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} else {
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first_fqid = fq->fqid;
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last_fqid = fq->fqid;
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}
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prev = fq;
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prevstr = str;
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i++;
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}
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if (prev) {
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if (last_fqid == first_fqid)
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bytes += sprintf(buf + bytes, "%s: %d\n", prevstr,
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prev->fqid);
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else
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bytes += sprintf(buf + bytes, "%s: %d - %d\n", prevstr,
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first_fqid, last_fqid);
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}
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return bytes;
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}
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static ssize_t dpaa_eth_show_bpids(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
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ssize_t bytes = 0;
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int i = 0;
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for (i = 0; i < DPAA_BPS_NUM; i++)
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bytes += snprintf(buf + bytes, PAGE_SIZE - bytes, "%u\n",
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priv->dpaa_bps[i]->bpid);
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return bytes;
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}
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static struct device_attribute dpaa_eth_attrs[] = {
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__ATTR(device_addr, 0444, dpaa_eth_show_addr, NULL),
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__ATTR(fqids, 0444, dpaa_eth_show_fqids, NULL),
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__ATTR(bpids, 0444, dpaa_eth_show_bpids, NULL),
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};
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void dpaa_eth_sysfs_init(struct device *dev)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
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if (device_create_file(dev, &dpaa_eth_attrs[i])) {
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dev_err(dev, "Error creating sysfs file\n");
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while (i > 0)
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device_remove_file(dev, &dpaa_eth_attrs[--i]);
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return;
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}
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}
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void dpaa_eth_sysfs_remove(struct device *dev)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
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device_remove_file(dev, &dpaa_eth_attrs[i]);
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}
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