diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c | 166 |
1 files changed, 166 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..ee62d25ca --- /dev/null +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c @@ -0,0 +1,166 @@ +/* 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_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]); +} |