ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/target/linux/layerscape/patches-5.4/701-net-0035-sdk_dpaa-accept-frames-on-RX-even-if-larger-than-MTU.patch b/target/linux/layerscape/patches-5.4/701-net-0035-sdk_dpaa-accept-frames-on-RX-even-if-larger-than-MTU.patch
new file mode 100644
index 0000000..d868498
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0035-sdk_dpaa-accept-frames-on-RX-even-if-larger-than-MTU.patch
@@ -0,0 +1,64 @@
+From ab1371fec54bdd16b5f6c56c76d817404c696d4b Mon Sep 17 00:00:00 2001
+From: Camelia Groza <camelia.groza@nxp.com>
+Date: Wed, 18 Oct 2017 16:38:30 +0300
+Subject: [PATCH] sdk_dpaa: accept frames on RX even if larger than MTU
+
+Documentation/networking/netdevices.txt mentions that interfaces must
+be able to receive frames at least the size of the configured MTU. The
+behavior for received frames larger than the MTU is unspecified. We have
+been dropping these frames in software. Remove this behavior and accept
+them.
+
+Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
+---
+ drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h | 11 -----------
+ drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 11 -----------
+ 2 files changed, 22 deletions(-)
+
+--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h
++++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h
+@@ -514,17 +514,6 @@ dpa_fd_offset(const struct qm_fd *fd)
+ return fd->offset;
+ }
+
+-/* Verifies if the skb length is below the interface MTU */
+-static inline int dpa_check_rx_mtu(struct sk_buff *skb, int mtu)
+-{
+- if (unlikely(skb->len > mtu))
+- if ((skb->protocol != htons(ETH_P_8021Q))
+- || (skb->len > mtu + 4))
+- return -1;
+-
+- return 0;
+-}
+-
+ static inline uint16_t dpa_get_headroom(struct dpa_buffer_layout_s *bl)
+ {
+ uint16_t headroom;
+--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
++++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
+@@ -616,13 +616,6 @@ void __hot _dpa_rx(struct net_device *ne
+ (*count_ptr)--;
+ skb->protocol = eth_type_trans(skb, net_dev);
+
+- /* IP Reassembled frames are allowed to be larger than MTU */
+- if (unlikely(dpa_check_rx_mtu(skb, net_dev->mtu) &&
+- !(fd_status & FM_FD_IPR))) {
+- percpu_stats->rx_dropped++;
+- goto drop_bad_frame;
+- }
+-
+ skb_len = skb->len;
+
+ #ifdef CONFIG_FSL_DPAA_DBG_LOOP
+@@ -655,10 +648,6 @@ void __hot _dpa_rx(struct net_device *ne
+ packet_dropped:
+ return;
+
+-drop_bad_frame:
+- dev_kfree_skb(skb);
+- return;
+-
+ _release_frame:
+ dpa_fd_release(net_dev, fd);
+ }