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authorYangbo Lu <yangbo.lu@nxp.com>2020-04-10 10:47:05 +0800
committerPetr Štetiar <ynezz@true.cz>2020-05-07 12:53:06 +0200
commitcddd4591404fb4c53dc0b3c0b15b942cdbed4356 (patch)
tree392c1179de46b0f804e3789edca19069b64e6b44 /target/linux/layerscape/patches-5.4/701-net-0204-dpaa2-eth-Add-Tx-shaping-support.patch
parentd1d2c0b5579ea4f69a42246c9318539d61ba1999 (diff)
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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>
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0204-dpaa2-eth-Add-Tx-shaping-support.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0204-dpaa2-eth-Add-Tx-shaping-support.patch142
1 files changed, 142 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0204-dpaa2-eth-Add-Tx-shaping-support.patch b/target/linux/layerscape/patches-5.4/701-net-0204-dpaa2-eth-Add-Tx-shaping-support.patch
new file mode 100644
index 0000000000..e1354b10a7
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0204-dpaa2-eth-Add-Tx-shaping-support.patch
@@ -0,0 +1,142 @@
+From ef0cc7d01f3eeca37c6bf864903af1c0cf0a792d Mon Sep 17 00:00:00 2001
+From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
+Date: Fri, 5 May 2017 18:11:08 +0300
+Subject: [PATCH] dpaa2-eth: Add Tx shaping support
+
+Add support in sysfs for controlling DPNI Tx shaping
+parameters: rate limit (in Mbps) and max burst size (in bytes).
+The settings are per port.
+
+TODO: See how to integrate Tx shaping support using
+standard Linux tools (ethtool)
+
+Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
+Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
+---
+ drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 80 ++++++++++++++++++++++++
+ drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 4 ++
+ 2 files changed, 84 insertions(+)
+
+--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+@@ -3771,6 +3771,83 @@ const struct dcbnl_rtnl_ops dpaa2_eth_dc
+ };
+ #endif
+
++/* SysFS support */
++static ssize_t dpaa2_eth_show_tx_shaping(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct dpaa2_eth_priv *priv = netdev_priv(to_net_dev(dev));
++ /* No MC API for getting the shaping config. We're stateful. */
++ struct dpni_tx_shaping_cfg *scfg = &priv->shaping_cfg;
++
++ return sprintf(buf, "%u %hu\n", scfg->rate_limit, scfg->max_burst_size);
++}
++
++static ssize_t dpaa2_eth_write_tx_shaping(struct device *dev,
++ struct device_attribute *attr,
++ const char *buf,
++ size_t count)
++{
++ int err, items;
++ struct dpaa2_eth_priv *priv = netdev_priv(to_net_dev(dev));
++ struct dpni_tx_shaping_cfg scfg;
++
++ items = sscanf(buf, "%u %hu", &scfg.rate_limit, &scfg.max_burst_size);
++ if (items != 2) {
++ pr_err("Expected format: \"rate_limit(Mbps) max_burst_size(bytes)\"\n");
++ return -EINVAL;
++ }
++ /* Size restriction as per MC API documentation */
++ if (scfg.max_burst_size > DPAA2_ETH_MAX_BURST_SIZE) {
++ pr_err("max_burst_size must be <= %d\n",
++ DPAA2_ETH_MAX_BURST_SIZE);
++ return -EINVAL;
++ }
++
++ err = dpni_set_tx_shaping(priv->mc_io, 0, priv->mc_token, &scfg);
++ if (err) {
++ dev_err(dev, "dpni_set_tx_shaping() failed\n");
++ return -EPERM;
++ }
++ /* If successful, save the current configuration for future inquiries */
++ priv->shaping_cfg = scfg;
++
++ return count;
++}
++
++static struct device_attribute dpaa2_eth_attrs[] = {
++ __ATTR(tx_shaping,
++ 0600,
++ dpaa2_eth_show_tx_shaping,
++ dpaa2_eth_write_tx_shaping),
++};
++
++static void dpaa2_eth_sysfs_init(struct device *dev)
++{
++ int i, err;
++
++ for (i = 0; i < ARRAY_SIZE(dpaa2_eth_attrs); i++) {
++ err = device_create_file(dev, &dpaa2_eth_attrs[i]);
++ if (err) {
++ dev_err(dev, "ERROR creating sysfs file\n");
++ goto undo;
++ }
++ }
++ return;
++
++undo:
++ while (i > 0)
++ device_remove_file(dev, &dpaa2_eth_attrs[--i]);
++}
++
++static void dpaa2_eth_sysfs_remove(struct device *dev)
++{
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(dpaa2_eth_attrs); i++)
++ device_remove_file(dev, &dpaa2_eth_attrs[i]);
++}
++
+ static int dpaa2_eth_probe(struct fsl_mc_device *dpni_dev)
+ {
+ struct device *dev;
+@@ -3890,6 +3967,7 @@ static int dpaa2_eth_probe(struct fsl_mc
+ #ifdef CONFIG_DEBUG_FS
+ dpaa2_dbg_add(priv);
+ #endif
++ dpaa2_eth_sysfs_init(&net_dev->dev);
+
+ dev_info(dev, "Probed interface %s\n", net_dev->name);
+ return 0;
+@@ -3937,6 +4015,8 @@ static int dpaa2_eth_remove(struct fsl_m
+ #ifdef CONFIG_DEBUG_FS
+ dpaa2_dbg_remove(priv);
+ #endif
++ dpaa2_eth_sysfs_remove(&net_dev->dev);
++
+ unregister_netdev(net_dev);
+
+ if (priv->do_link_poll)
+--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
+@@ -42,6 +42,9 @@
+ */
+ #define DPAA2_ETH_FQ_TAILDROP_THRESH (1024 * 1024)
+
++/* Maximum burst size value for Tx shaping */
++#define DPAA2_ETH_MAX_BURST_SIZE 0xF7FF
++
+ /* Maximum number of Tx confirmation frames to be processed
+ * in a single NAPI call
+ */
+@@ -444,6 +447,7 @@ struct dpaa2_eth_priv {
+ #ifdef CONFIG_DEBUG_FS
+ struct dpaa2_debugfs dbg;
+ #endif
++ struct dpni_tx_shaping_cfg shaping_cfg;
+ };
+
+ #define DPAA2_RXH_SUPPORTED (RXH_L2DA | RXH_VLAN | RXH_L3_PROTO \