diff options
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.patch | 52 |
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); + } + |