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1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later2/*3 * Copyright 2008 - 2016 Freescale Semiconductor Inc.4 */5 6#include <linux/init.h>7#include <linux/module.h>8#include <linux/io.h>9#include <linux/of_net.h>10#include "dpaa_eth.h"11#include "mac.h"12 13static ssize_t dpaa_eth_show_addr(struct device *dev,14 struct device_attribute *attr, char *buf)15{16 struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));17 struct mac_device *mac_dev = priv->mac_dev;18 19 if (mac_dev)20 return sprintf(buf, "%llx",21 (unsigned long long)mac_dev->res->start);22 else23 return sprintf(buf, "none");24}25 26static ssize_t dpaa_eth_show_fqids(struct device *dev,27 struct device_attribute *attr, char *buf)28{29 struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));30 struct dpaa_fq *prev = NULL;31 char *prevstr = NULL;32 struct dpaa_fq *tmp;33 struct dpaa_fq *fq;34 u32 first_fqid = 0;35 u32 last_fqid = 0;36 ssize_t bytes = 0;37 char *str;38 39 list_for_each_entry_safe(fq, tmp, &priv->dpaa_fq_list, list) {40 switch (fq->fq_type) {41 case FQ_TYPE_RX_DEFAULT:42 str = "Rx default";43 break;44 case FQ_TYPE_RX_ERROR:45 str = "Rx error";46 break;47 case FQ_TYPE_RX_PCD:48 str = "Rx PCD";49 break;50 case FQ_TYPE_TX_CONFIRM:51 str = "Tx default confirmation";52 break;53 case FQ_TYPE_TX_CONF_MQ:54 str = "Tx confirmation (mq)";55 break;56 case FQ_TYPE_TX_ERROR:57 str = "Tx error";58 break;59 case FQ_TYPE_TX:60 str = "Tx";61 break;62 default:63 str = "Unknown";64 }65 66 if (prev && (abs(fq->fqid - prev->fqid) != 1 ||67 str != prevstr)) {68 if (last_fqid == first_fqid)69 bytes += sprintf(buf + bytes,70 "%s: %d\n", prevstr, prev->fqid);71 else72 bytes += sprintf(buf + bytes,73 "%s: %d - %d\n", prevstr,74 first_fqid, last_fqid);75 }76 77 if (prev && abs(fq->fqid - prev->fqid) == 1 &&78 str == prevstr) {79 last_fqid = fq->fqid;80 } else {81 first_fqid = fq->fqid;82 last_fqid = fq->fqid;83 }84 85 prev = fq;86 prevstr = str;87 }88 89 if (prev) {90 if (last_fqid == first_fqid)91 bytes += sprintf(buf + bytes, "%s: %d\n", prevstr,92 prev->fqid);93 else94 bytes += sprintf(buf + bytes, "%s: %d - %d\n", prevstr,95 first_fqid, last_fqid);96 }97 98 return bytes;99}100 101static ssize_t dpaa_eth_show_bpids(struct device *dev,102 struct device_attribute *attr, char *buf)103{104 struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));105 ssize_t bytes = 0;106 107 bytes += snprintf(buf + bytes, PAGE_SIZE - bytes, "%u\n",108 priv->dpaa_bp->bpid);109 110 return bytes;111}112 113static struct device_attribute dpaa_eth_attrs[] = {114 __ATTR(device_addr, 0444, dpaa_eth_show_addr, NULL),115 __ATTR(fqids, 0444, dpaa_eth_show_fqids, NULL),116 __ATTR(bpids, 0444, dpaa_eth_show_bpids, NULL),117};118 119void dpaa_eth_sysfs_init(struct device *dev)120{121 int i;122 123 for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)124 if (device_create_file(dev, &dpaa_eth_attrs[i])) {125 dev_err(dev, "Error creating sysfs file\n");126 while (i > 0)127 device_remove_file(dev, &dpaa_eth_attrs[--i]);128 return;129 }130}131 132void dpaa_eth_sysfs_remove(struct device *dev)133{134 int i;135 136 for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)137 device_remove_file(dev, &dpaa_eth_attrs[i]);138}139