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1// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)2/* Copyright 2015 Freescale Semiconductor Inc.3 * Copyright 2018-2019 NXP4 */5#include <linux/module.h>6#include <linux/debugfs.h>7#include "dpaa2-eth.h"8#include "dpaa2-eth-debugfs.h"9 10#define DPAA2_ETH_DBG_ROOT "dpaa2-eth"11 12static struct dentry *dpaa2_dbg_root;13 14static int dpaa2_dbg_cpu_show(struct seq_file *file, void *offset)15{16 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;17 struct rtnl_link_stats64 *stats;18 struct dpaa2_eth_drv_stats *extras;19 int i;20 21 seq_printf(file, "Per-CPU stats for %s\n", priv->net_dev->name);22 seq_printf(file, "%s%16s%16s%16s%16s%16s%16s%16s%16s%16s\n",23 "CPU", "Rx", "Rx Err", "Rx SG", "Tx", "Tx Err", "Tx conf",24 "Tx SG", "Tx converted to SG", "Enq busy");25 26 for_each_online_cpu(i) {27 stats = per_cpu_ptr(priv->percpu_stats, i);28 extras = per_cpu_ptr(priv->percpu_extras, i);29 seq_printf(file, "%3d%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu\n",30 i,31 stats->rx_packets,32 stats->rx_errors,33 extras->rx_sg_frames,34 stats->tx_packets,35 stats->tx_errors,36 extras->tx_conf_frames,37 extras->tx_sg_frames,38 extras->tx_converted_sg_frames,39 extras->tx_portal_busy);40 }41 42 return 0;43}44 45DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_cpu);46 47static char *fq_type_to_str(struct dpaa2_eth_fq *fq)48{49 switch (fq->type) {50 case DPAA2_RX_FQ:51 return "Rx";52 case DPAA2_TX_CONF_FQ:53 return "Tx conf";54 default:55 return "N/A";56 }57}58 59static int dpaa2_dbg_fqs_show(struct seq_file *file, void *offset)60{61 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;62 struct dpaa2_eth_fq *fq;63 u32 fcnt, bcnt;64 int i, err;65 66 seq_printf(file, "FQ stats for %s:\n", priv->net_dev->name);67 seq_printf(file, "%s%16s%16s%16s%16s%16s\n",68 "VFQID", "CPU", "TC", "Type", "Frames", "Pending frames");69 70 for (i = 0; i < priv->num_fqs; i++) {71 fq = &priv->fq[i];72 err = dpaa2_io_query_fq_count(NULL, fq->fqid, &fcnt, &bcnt);73 if (err)74 fcnt = 0;75 76 /* Skip FQs with no traffic */77 if (!fq->stats.frames && !fcnt)78 continue;79 80 seq_printf(file, "%5d%16d%16d%16s%16llu%16u\n",81 fq->fqid,82 fq->target_cpu,83 fq->tc,84 fq_type_to_str(fq),85 fq->stats.frames,86 fcnt);87 }88 89 return 0;90}91 92DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_fqs);93 94static int dpaa2_dbg_ch_show(struct seq_file *file, void *offset)95{96 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;97 struct dpaa2_eth_channel *ch;98 int i;99 100 seq_printf(file, "Channel stats for %s:\n", priv->net_dev->name);101 seq_printf(file, "%s %5s%16s%16s%16s%16s%16s%16s\n",102 "IDX", "CHID", "CPU", "Deq busy", "Frames", "CDANs",103 "Avg Frm/CDAN", "Buf count");104 105 for (i = 0; i < priv->num_channels; i++) {106 ch = priv->channel[i];107 seq_printf(file, "%3s%d%6d%16d%16llu%16llu%16llu%16llu%16d\n",108 "CH#", i, ch->ch_id,109 ch->nctx.desired_cpu,110 ch->stats.dequeue_portal_busy,111 ch->stats.frames,112 ch->stats.cdan,113 div64_u64(ch->stats.frames, ch->stats.cdan),114 ch->buf_count);115 }116 117 return 0;118}119 120DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_ch);121 122static int dpaa2_dbg_bp_show(struct seq_file *file, void *offset)123{124 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;125 int i, j, num_queues, buf_cnt;126 struct dpaa2_eth_bp *bp;127 char ch_name[10];128 int err;129 130 /* Print out the header */131 seq_printf(file, "Buffer pool info for %s:\n", priv->net_dev->name);132 seq_printf(file, "%s %10s%15s", "IDX", "BPID", "Buf count");133 num_queues = dpaa2_eth_queue_count(priv);134 for (i = 0; i < num_queues; i++) {135 snprintf(ch_name, sizeof(ch_name), "CH#%d", i);136 seq_printf(file, "%10s", ch_name);137 }138 seq_printf(file, "\n");139 140 /* For each buffer pool, print out its BPID, the number of buffers in141 * that buffer pool and the channels which are using it.142 */143 for (i = 0; i < priv->num_bps; i++) {144 bp = priv->bp[i];145 146 err = dpaa2_io_query_bp_count(NULL, bp->bpid, &buf_cnt);147 if (err) {148 netdev_warn(priv->net_dev, "Buffer count query error %d\n", err);149 return err;150 }151 152 seq_printf(file, "%3s%d%10d%15d", "BP#", i, bp->bpid, buf_cnt);153 for (j = 0; j < num_queues; j++) {154 if (priv->channel[j]->bp == bp)155 seq_printf(file, "%10s", "x");156 else157 seq_printf(file, "%10s", "");158 }159 seq_printf(file, "\n");160 }161 162 return 0;163}164 165DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_bp);166 167void dpaa2_dbg_add(struct dpaa2_eth_priv *priv)168{169 struct fsl_mc_device *dpni_dev;170 struct dentry *dir;171 char name[10];172 173 /* Create a directory for the interface */174 dpni_dev = to_fsl_mc_device(priv->net_dev->dev.parent);175 snprintf(name, 10, "dpni.%d", dpni_dev->obj_desc.id);176 dir = debugfs_create_dir(name, dpaa2_dbg_root);177 priv->dbg.dir = dir;178 179 /* per-cpu stats file */180 debugfs_create_file("cpu_stats", 0444, dir, priv, &dpaa2_dbg_cpu_fops);181 182 /* per-fq stats file */183 debugfs_create_file("fq_stats", 0444, dir, priv, &dpaa2_dbg_fqs_fops);184 185 /* per-fq stats file */186 debugfs_create_file("ch_stats", 0444, dir, priv, &dpaa2_dbg_ch_fops);187 188 /* per buffer pool stats file */189 debugfs_create_file("bp_stats", 0444, dir, priv, &dpaa2_dbg_bp_fops);190 191}192 193void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv)194{195 debugfs_remove_recursive(priv->dbg.dir);196}197 198void dpaa2_eth_dbg_init(void)199{200 dpaa2_dbg_root = debugfs_create_dir(DPAA2_ETH_DBG_ROOT, NULL);201 pr_debug("DPAA2-ETH: debugfs created\n");202}203 204void dpaa2_eth_dbg_exit(void)205{206 debugfs_remove(dpaa2_dbg_root);207}208