layerscape: add patches-5.4

Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

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)