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Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0327-at803x-Address-packet-drops-at-low-traffic-rate-due-.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0327-at803x-Address-packet-drops-at-low-traffic-rate-due-.patch83
1 files changed, 0 insertions, 83 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0327-at803x-Address-packet-drops-at-low-traffic-rate-due-.patch b/target/linux/layerscape/patches-5.4/701-net-0327-at803x-Address-packet-drops-at-low-traffic-rate-due-.patch
deleted file mode 100644
index babecdecb7..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0327-at803x-Address-packet-drops-at-low-traffic-rate-due-.patch
+++ /dev/null
@@ -1,83 +0,0 @@
-From 53c3bd0d5a873c23841bb95e7b95c1c3630c50bd Mon Sep 17 00:00:00 2001
-From: Vladimir Oltean <vladimir.oltean@nxp.com>
-Date: Thu, 12 Jul 2018 13:03:13 +0300
-Subject: [PATCH] at803x: Address packet drops at low traffic rate due to
- SmartEEE feature
-
-* According to the AR8035 datasheet, smartEEE mode (active by default)
- makes the PHY enters sleep after a configurable idle time. It does
- this autonomously, without LPI (Low Power Idle) signals coming from MAC.
-* Tested with ping (default of 1 second interval) over back-to-back
- RGMII between 2 boards having AR8035 at both ends:
- - Without patch:
- 225 packets transmitted, 145 received, 35% packet loss, time 229334ms
- - With patch:
- 144 packets transmitted, 144 received, 0% packet loss, time 146378ms
-
-Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
----
- drivers/net/phy/Kconfig | 10 ++++++++++
- drivers/net/phy/at803x.c | 22 ++++++++++++++++++++++
- 2 files changed, 32 insertions(+)
-
---- a/drivers/net/phy/Kconfig
-+++ b/drivers/net/phy/Kconfig
-@@ -363,6 +363,16 @@ config AT803X_PHY
- ---help---
- Currently supports the AT8030 and AT8035 model
-
-+config AT803X_PHY_SMART_EEE
-+ depends on AT803X_PHY
-+ default n
-+ tristate "SmartEEE feature for AT803X PHYs"
-+ ---help---
-+ Enables the Atheros SmartEEE feature (not IEEE 802.3az). When 2 PHYs
-+ which support this feature are connected back-to-back, they may
-+ negotiate a low-power sleep mode autonomously, without the Ethernet
-+ controller's knowledge. May cause packet loss.
-+
- config BCM63XX_PHY
- tristate "Broadcom 63xx SOCs internal PHY"
- depends on BCM63XX || COMPILE_TEST
---- a/drivers/net/phy/at803x.c
-+++ b/drivers/net/phy/at803x.c
-@@ -62,6 +62,8 @@
- #define AT803X_DEBUG_REG_5 0x05
- #define AT803X_DEBUG_TX_CLK_DLY_EN BIT(8)
-
-+#define AT803X_LPI_EN BIT(8)
-+
- #define ATH8030_PHY_ID 0x004dd076
- #define ATH8031_PHY_ID 0x004dd074
- #define ATH8032_PHY_ID 0x004dd023
-@@ -299,10 +301,30 @@ static int at803x_probe(struct phy_devic
- return ret;
- }
-
-+static void at803x_enable_smart_eee(struct phy_device *phydev, int on)
-+{
-+ int value;
-+
-+ /* 5.1.11 Smart_eee control3 */
-+ value = phy_read_mmd(phydev, MDIO_MMD_PCS, 0x805D);
-+ if (on)
-+ value |= AT803X_LPI_EN;
-+ else
-+ value &= ~AT803X_LPI_EN;
-+ phy_write_mmd(phydev, MDIO_MMD_PCS, 0x805D, value);
-+}
-+
- static int at803x_config_init(struct phy_device *phydev)
- {
- int ret;
-
-+
-+#ifdef CONFIG_AT803X_PHY_SMART_EEE
-+ at803x_enable_smart_eee(phydev, 1);
-+#else
-+ at803x_enable_smart_eee(phydev, 0);
-+#endif
-+
- /* The RX and TX delay default is:
- * after HW reset: RX delay enabled and TX delay disabled
- * after SW reset: RX delay enabled, while TX delay retains the