diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0207-dpaa2-eth-Add-reset-controls-for-debugfs-stats.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0207-dpaa2-eth-Add-reset-controls-for-debugfs-stats.patch | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0207-dpaa2-eth-Add-reset-controls-for-debugfs-stats.patch b/target/linux/layerscape/patches-5.4/701-net-0207-dpaa2-eth-Add-reset-controls-for-debugfs-stats.patch new file mode 100644 index 0000000000..01d7b01c28 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0207-dpaa2-eth-Add-reset-controls-for-debugfs-stats.patch @@ -0,0 +1,92 @@ +From aa80ddbb30e9ffd75e2dcaa58abf6383a5520942 Mon Sep 17 00:00:00 2001 +From: Ioana Radulescu <ruxandra.radulescu@nxp.com> +Date: Wed, 13 Feb 2019 12:23:41 +0200 +Subject: [PATCH] dpaa2-eth: Add reset controls for debugfs stats + +Allow the user to reset statistics counters through debugfs entries. + +Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> +--- + .../ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c | 64 ++++++++++++++++++++++ + 1 file changed, 64 insertions(+) + +--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c ++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c +@@ -167,6 +167,62 @@ static const struct file_operations dpaa + .release = single_release, + }; + ++static ssize_t dpaa2_dbg_reset_write(struct file *file, const char __user *buf, ++ size_t count, loff_t *offset) ++{ ++ struct dpaa2_eth_priv *priv = file->private_data; ++ struct rtnl_link_stats64 *percpu_stats; ++ struct dpaa2_eth_drv_stats *percpu_extras; ++ struct dpaa2_eth_fq *fq; ++ struct dpaa2_eth_channel *ch; ++ int i; ++ ++ for_each_online_cpu(i) { ++ percpu_stats = per_cpu_ptr(priv->percpu_stats, i); ++ memset(percpu_stats, 0, sizeof(*percpu_stats)); ++ ++ percpu_extras = per_cpu_ptr(priv->percpu_extras, i); ++ memset(percpu_extras, 0, sizeof(*percpu_extras)); ++ } ++ ++ for (i = 0; i < priv->num_fqs; i++) { ++ fq = &priv->fq[i]; ++ memset(&fq->stats, 0, sizeof(fq->stats)); ++ } ++ ++ for (i = 0; i < priv->num_channels; i++) { ++ ch = priv->channel[i]; ++ memset(&ch->stats, 0, sizeof(ch->stats)); ++ } ++ ++ return count; ++} ++ ++static const struct file_operations dpaa2_dbg_reset_ops = { ++ .open = simple_open, ++ .write = dpaa2_dbg_reset_write, ++}; ++ ++static ssize_t dpaa2_dbg_reset_mc_write(struct file *file, ++ const char __user *buf, ++ size_t count, loff_t *offset) ++{ ++ struct dpaa2_eth_priv *priv = file->private_data; ++ int err; ++ ++ err = dpni_reset_statistics(priv->mc_io, 0, priv->mc_token); ++ if (err) ++ netdev_err(priv->net_dev, ++ "dpni_reset_statistics() failed %d\n", err); ++ ++ return count; ++} ++ ++static const struct file_operations dpaa2_dbg_reset_mc_ops = { ++ .open = simple_open, ++ .write = dpaa2_dbg_reset_mc_write, ++}; ++ + void dpaa2_dbg_add(struct dpaa2_eth_priv *priv) + { + struct dentry *dir; +@@ -183,6 +239,14 @@ void dpaa2_dbg_add(struct dpaa2_eth_priv + + /* per-fq stats file */ + debugfs_create_file("ch_stats", 0444, dir, priv, &dpaa2_dbg_ch_ops); ++ ++ /* reset stats */ ++ debugfs_create_file("reset_stats", 0200, dir, priv, ++ &dpaa2_dbg_reset_ops); ++ ++ /* reset MC stats */ ++ debugfs_create_file("reset_mc_stats", 0222, dir, priv, ++ &dpaa2_dbg_reset_mc_ops); + } + + void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv) |