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53 lines
1.8 KiB
Diff
53 lines
1.8 KiB
Diff
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From 4dc65101fc94270fec94599701343128c77da8fb Mon Sep 17 00:00:00 2001
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From: Camelia Groza <camelia.groza@nxp.com>
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Date: Wed, 8 Nov 2017 14:37:27 +0200
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Subject: [PATCH] sdk_dpaa: ls1043a errata: stop advertising S/G and GSO
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support
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The errata prevents us from transmitting S/G frames. Instead of
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linearizing them ourselves, stop advertising S/G support and have the
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stack do it for us.
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Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
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---
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drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c | 21 ++++++++++++---------
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1 file changed, 12 insertions(+), 9 deletions(-)
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--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c
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+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c
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@@ -761,15 +761,6 @@ static int dpa_private_netdev_init(struc
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net_dev->min_mtu = ETH_MIN_MTU;
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net_dev->max_mtu = dpa_get_max_mtu();
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-#ifndef CONFIG_PPC
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- /* Due to the A010022 FMan errata, we can not use contig frames larger
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- * than 4K, nor S/G frames. We need to prevent the user from setting a
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- * large MTU.
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- */
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- if (unlikely(dpaa_errata_a010022))
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- net_dev->max_mtu = DPA_BP_RAW_SIZE;
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-#endif
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-
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net_dev->hw_features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
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NETIF_F_LLTX);
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@@ -787,6 +778,18 @@ static int dpa_private_netdev_init(struc
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/* Advertise NETIF_F_HW_ACCEL_MQ to avoid Tx timeout warnings */
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net_dev->features |= NETIF_F_HW_ACCEL_MQ;
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+#ifndef CONFIG_PPC
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+ /* Due to the A010022 FMan errata, we can not use contig frames larger
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+ * than 4K, nor S/G frames. We need to prevent the user from setting a
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+ * large MTU. We also stop advertising S/G and GSO support.
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+ */
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+ if (unlikely(dpaa_errata_a010022)) {
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+ net_dev->max_mtu = DPA_BP_RAW_SIZE;
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+ net_dev->hw_features &= ~NETIF_F_SG;
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+ net_dev->features &= ~NETIF_F_GSO;
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+ }
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+#endif
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+
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return dpa_netdev_init(net_dev, mac_addr, tx_timeout);
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}
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