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93 lines
2.6 KiB
Diff
93 lines
2.6 KiB
Diff
From aa80ddbb30e9ffd75e2dcaa58abf6383a5520942 Mon Sep 17 00:00:00 2001
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From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
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Date: Wed, 13 Feb 2019 12:23:41 +0200
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Subject: [PATCH] dpaa2-eth: Add reset controls for debugfs stats
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Allow the user to reset statistics counters through debugfs entries.
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Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
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---
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.../ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c | 64 ++++++++++++++++++++++
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1 file changed, 64 insertions(+)
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--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
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+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
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@@ -167,6 +167,62 @@ static const struct file_operations dpaa
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.release = single_release,
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};
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+static ssize_t dpaa2_dbg_reset_write(struct file *file, const char __user *buf,
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+ size_t count, loff_t *offset)
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+{
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+ struct dpaa2_eth_priv *priv = file->private_data;
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+ struct rtnl_link_stats64 *percpu_stats;
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+ struct dpaa2_eth_drv_stats *percpu_extras;
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+ struct dpaa2_eth_fq *fq;
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+ struct dpaa2_eth_channel *ch;
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+ int i;
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+
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+ for_each_online_cpu(i) {
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+ percpu_stats = per_cpu_ptr(priv->percpu_stats, i);
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+ memset(percpu_stats, 0, sizeof(*percpu_stats));
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+
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+ percpu_extras = per_cpu_ptr(priv->percpu_extras, i);
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+ memset(percpu_extras, 0, sizeof(*percpu_extras));
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+ }
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+
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+ for (i = 0; i < priv->num_fqs; i++) {
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+ fq = &priv->fq[i];
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+ memset(&fq->stats, 0, sizeof(fq->stats));
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+ }
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+
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+ for (i = 0; i < priv->num_channels; i++) {
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+ ch = priv->channel[i];
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+ memset(&ch->stats, 0, sizeof(ch->stats));
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+ }
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+
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+ return count;
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+}
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+
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+static const struct file_operations dpaa2_dbg_reset_ops = {
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+ .open = simple_open,
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+ .write = dpaa2_dbg_reset_write,
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+};
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+
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+static ssize_t dpaa2_dbg_reset_mc_write(struct file *file,
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+ const char __user *buf,
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+ size_t count, loff_t *offset)
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+{
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+ struct dpaa2_eth_priv *priv = file->private_data;
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+ int err;
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+
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+ err = dpni_reset_statistics(priv->mc_io, 0, priv->mc_token);
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+ if (err)
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+ netdev_err(priv->net_dev,
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+ "dpni_reset_statistics() failed %d\n", err);
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+
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+ return count;
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+}
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+
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+static const struct file_operations dpaa2_dbg_reset_mc_ops = {
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+ .open = simple_open,
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+ .write = dpaa2_dbg_reset_mc_write,
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+};
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+
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void dpaa2_dbg_add(struct dpaa2_eth_priv *priv)
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{
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struct dentry *dir;
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@@ -183,6 +239,14 @@ void dpaa2_dbg_add(struct dpaa2_eth_priv
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/* per-fq stats file */
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debugfs_create_file("ch_stats", 0444, dir, priv, &dpaa2_dbg_ch_ops);
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+
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+ /* reset stats */
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+ debugfs_create_file("reset_stats", 0200, dir, priv,
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+ &dpaa2_dbg_reset_ops);
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+
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+ /* reset MC stats */
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+ debugfs_create_file("reset_mc_stats", 0222, dir, priv,
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+ &dpaa2_dbg_reset_mc_ops);
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}
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void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv)
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