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/* Copyright 2014 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/kthread.h>
#include <linux/io.h>
#include <linux/of_net.h>
#include "dpaa_eth_generic.h"
#include "mac.h" /* struct mac_device */
static ssize_t dpaa_eth_generic_show_addr(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct dpa_generic_priv_s *priv = netdev_priv(to_net_dev(dev));
struct mac_device *mac_dev = priv->mac_dev;
if (mac_dev)
return sprintf(buf, "%llx\n",
(unsigned long long)mac_dev->res->start);
else
return sprintf(buf, "none\n");
}
static ssize_t dpaa_eth_generic_show_type(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t res = 0;
res = sprintf(buf, "generic\n");
return res;
}
static ssize_t dpaa_eth_generic_show_fqids(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct dpa_generic_priv_s *priv = netdev_priv(to_net_dev(dev));
ssize_t bytes = 0;
int i = 0;
char *str;
struct dpa_fq *fq;
struct dpa_fq *tmp;
struct dpa_fq *prev = NULL;
u32 first_fqid = 0;
u32 last_fqid = 0;
char *prevstr = NULL;
list_for_each_entry_safe(fq, tmp, &priv->dpa_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 = 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_generic_show_bpids(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t bytes = 0;
struct dpa_generic_priv_s *priv = netdev_priv(to_net_dev(dev));
struct dpa_bp *rx_bp = priv->rx_bp;
struct dpa_bp *draining_tx_bp = priv->draining_tx_bp;
int i = 0;
bytes += snprintf(buf + bytes, PAGE_SIZE, "Rx buffer pools:\n");
for (i = 0; i < priv->rx_bp_count; i++)
bytes += snprintf(buf + bytes, PAGE_SIZE, "%u ",
rx_bp[i].bpid);
bytes += snprintf(buf + bytes, PAGE_SIZE, "\n");
bytes += snprintf(buf + bytes, PAGE_SIZE, "Draining buffer pool:\n");
bytes += snprintf(buf + bytes, PAGE_SIZE, "%u\n", draining_tx_bp->bpid);
return bytes;
}
static ssize_t dpaa_eth_generic_show_mac_regs(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct dpa_generic_priv_s *priv = netdev_priv(to_net_dev(dev));
struct mac_device *mac_dev = priv->mac_dev;
int n = 0;
if (mac_dev)
n = fm_mac_dump_regs(mac_dev, buf, n);
else
return sprintf(buf, "no mac control\n");
return n;
}
static struct device_attribute dpaa_eth_generic_attrs[] = {
__ATTR(device_addr, S_IRUGO, dpaa_eth_generic_show_addr, NULL),
__ATTR(device_type, S_IRUGO, dpaa_eth_generic_show_type, NULL),
__ATTR(fqids, S_IRUGO, dpaa_eth_generic_show_fqids, NULL),
__ATTR(bpids, S_IRUGO, dpaa_eth_generic_show_bpids, NULL),
__ATTR(mac_regs, S_IRUGO, dpaa_eth_generic_show_mac_regs, NULL),
};
void dpaa_eth_generic_sysfs_init(struct device *dev)
{
int i;
for (i = 0; i < ARRAY_SIZE(dpaa_eth_generic_attrs); i++)
if (device_create_file(dev, &dpaa_eth_generic_attrs[i])) {
dev_err(dev, "Error creating sysfs file\n");
while (i > 0)
device_remove_file(dev,
&dpaa_eth_generic_attrs[--i]);
return;
}
}
void dpaa_eth_generic_sysfs_remove(struct device *dev)
{
int i;
for (i = 0; i < ARRAY_SIZE(dpaa_eth_generic_attrs); i++)
device_remove_file(dev, &dpaa_eth_generic_attrs[i]);
}
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