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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-0038-sdk_dpaa-ls1043a-errata-stop-advertising-S-G-and-GSO.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-0038-sdk_dpaa-ls1043a-errata-stop-advertising-S-G-and-GSO.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0038-sdk_dpaa-ls1043a-errata-stop-advertising-S-G-and-GSO.patch52
1 files changed, 52 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0038-sdk_dpaa-ls1043a-errata-stop-advertising-S-G-and-GSO.patch b/target/linux/layerscape/patches-5.4/701-net-0038-sdk_dpaa-ls1043a-errata-stop-advertising-S-G-and-GSO.patch
new file mode 100644
index 0000000000..a7c87086eb
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0038-sdk_dpaa-ls1043a-errata-stop-advertising-S-G-and-GSO.patch
@@ -0,0 +1,52 @@
+From 4dc65101fc94270fec94599701343128c77da8fb Mon Sep 17 00:00:00 2001
+From: Camelia Groza <camelia.groza@nxp.com>
+Date: Wed, 8 Nov 2017 14:37:27 +0200
+Subject: [PATCH] sdk_dpaa: ls1043a errata: stop advertising S/G and GSO
+ support
+
+The errata prevents us from transmitting S/G frames. Instead of
+linearizing them ourselves, stop advertising S/G support and have the
+stack do it for us.
+
+Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
+---
+ drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c | 21 ++++++++++++---------
+ 1 file changed, 12 insertions(+), 9 deletions(-)
+
+--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c
++++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c
+@@ -761,15 +761,6 @@ static int dpa_private_netdev_init(struc
+ net_dev->min_mtu = ETH_MIN_MTU;
+ net_dev->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))
+- net_dev->max_mtu = DPA_BP_RAW_SIZE;
+-#endif
+-
+ net_dev->hw_features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_LLTX);
+
+@@ -787,6 +778,18 @@ static int dpa_private_netdev_init(struc
+ /* Advertise NETIF_F_HW_ACCEL_MQ to avoid Tx timeout warnings */
+ net_dev->features |= NETIF_F_HW_ACCEL_MQ;
+
++#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. We also stop advertising S/G and GSO support.
++ */
++ if (unlikely(dpaa_errata_a010022)) {
++ net_dev->max_mtu = DPA_BP_RAW_SIZE;
++ net_dev->hw_features &= ~NETIF_F_SG;
++ net_dev->features &= ~NETIF_F_GSO;
++ }
++#endif
++
+ return dpa_netdev_init(net_dev, mac_addr, tx_timeout);
+ }
+