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-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0195-dpaa2-eth-Add-helper-functions.patch61
1 files changed, 61 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0195-dpaa2-eth-Add-helper-functions.patch b/target/linux/layerscape/patches-5.4/701-net-0195-dpaa2-eth-Add-helper-functions.patch
new file mode 100644
index 0000000000..a63977d08e
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0195-dpaa2-eth-Add-helper-functions.patch
@@ -0,0 +1,61 @@
+From 1ffb57beaefe23ceeb526bc238351f7725502571 Mon Sep 17 00:00:00 2001
+From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
+Date: Mon, 16 Sep 2019 21:04:49 +0300
+Subject: [PATCH] dpaa2-eth: Add helper functions
+
+Add convenient helper functions that determines whether Rx/Tx pause
+frames are enabled based on link state flags received from firmware.
+
+Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
+---
+ drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 3 +--
+ drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 11 +++++++++++
+ drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c | 5 ++---
+ 3 files changed, 14 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+@@ -1276,8 +1276,7 @@ static int link_state_update(struct dpaa
+ * Rx FQ taildrop configuration as well. We configure taildrop
+ * only when pause frame generation is disabled.
+ */
+- tx_pause = !!(state.options & DPNI_LINK_OPT_PAUSE) ^
+- !!(state.options & DPNI_LINK_OPT_ASYM_PAUSE);
++ tx_pause = dpaa2_eth_tx_pause_enabled(state.options);
+ dpaa2_eth_set_rx_taildrop(priv, !tx_pause);
+
+ /* Chech link state; speed / duplex changes are not treated yet */
+--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
+@@ -494,6 +494,17 @@ enum dpaa2_eth_rx_dist {
+ (dpaa2_eth_cmp_dpni_ver((priv), DPNI_PAUSE_VER_MAJOR, \
+ DPNI_PAUSE_VER_MINOR) >= 0)
+
++static inline bool dpaa2_eth_tx_pause_enabled(u64 link_options)
++{
++ return !!(link_options & DPNI_LINK_OPT_PAUSE) ^
++ !!(link_options & DPNI_LINK_OPT_ASYM_PAUSE);
++}
++
++static inline bool dpaa2_eth_rx_pause_enabled(u64 link_options)
++{
++ return !!(link_options & DPNI_LINK_OPT_PAUSE);
++}
++
+ static inline
+ unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv,
+ struct sk_buff *skb)
+--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
+@@ -99,9 +99,8 @@ static void dpaa2_eth_get_pauseparam(str
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ u64 link_options = priv->link_state.options;
+
+- pause->rx_pause = !!(link_options & DPNI_LINK_OPT_PAUSE);
+- pause->tx_pause = pause->rx_pause ^
+- !!(link_options & DPNI_LINK_OPT_ASYM_PAUSE);
++ pause->rx_pause = dpaa2_eth_rx_pause_enabled(link_options);
++ pause->tx_pause = dpaa2_eth_tx_pause_enabled(link_options);
+ pause->autoneg = AUTONEG_DISABLE;
+ }
+