openwrt/target/linux/layerscape/patches-5.4/701-net-0038-sdk_dpaa-ls1043a-errata-stop-advertising-S-G-and-GSO.patch
Yangbo Lu cddd459140 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>
2020-05-07 12:53:06 +02:00

53 lines
1.8 KiB
Diff

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);
}