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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-0032-sdk_dpaa-ls1043a-errata-restrict-the-max-mtu.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-0032-sdk_dpaa-ls1043a-errata-restrict-the-max-mtu.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0032-sdk_dpaa-ls1043a-errata-restrict-the-max-mtu.patch33
1 files changed, 33 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0032-sdk_dpaa-ls1043a-errata-restrict-the-max-mtu.patch b/target/linux/layerscape/patches-5.4/701-net-0032-sdk_dpaa-ls1043a-errata-restrict-the-max-mtu.patch
new file mode 100644
index 0000000000..7b70452a08
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0032-sdk_dpaa-ls1043a-errata-restrict-the-max-mtu.patch
@@ -0,0 +1,33 @@
+From b204d76e9a64ec99f0151b7ca018f3b6df2bb1b7 Mon Sep 17 00:00:00 2001
+From: Camelia Groza <camelia.groza@nxp.com>
+Date: Tue, 19 Sep 2017 11:30:50 +0300
+Subject: [PATCH] sdk_dpaa: ls1043a errata: restrict the max mtu
+
+We can not allow for Jumbo frames and large MTU values on LS1043A due to
+the A-010022 FMan errata. All outgoing frames larger than 4K bytes are dropped.
+
+Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
+---
+ drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c
++++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c
+@@ -263,7 +263,16 @@ EXPORT_SYMBOL(dpa_get_stats64);
+
+ int dpa_change_mtu(struct net_device *net_dev, int new_mtu)
+ {
+- const int max_mtu = dpa_get_max_mtu();
++ int max_mtu = dpa_get_max_mtu();
++
++#ifndef CONFIG_PPC
++ /* Due to the A010022 FMan errata, we can not use contig frames larger
++ * than 4K, nor S/G frames. We need to prevent the user from setting a
++ * large MTU.
++ */
++ if (unlikely(dpaa_errata_a010022))
++ max_mtu = DPA_BP_RAW_SIZE;
++#endif
+
+ /* Make sure we don't exceed the Ethernet controller's MAXFRM */
+ if (new_mtu < 68 || new_mtu > max_mtu) {