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Christian Marangi
3169ffa4c7
Backport upstream patch fixing out of order DMA access for ethernet driver. This is relevant in the context of QoS when packets doesn't follow linear handling by QDMA HW. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
41 lines
1.5 KiB
Diff
41 lines
1.5 KiB
Diff
From a3cd6eb3259282a68b608fc923121460c0d3d2f7 Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Fri, 17 Jan 2025 10:35:41 +0100
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Subject: [PATCH 6/9] net: airoha: add initial fixup for GDM3/4 port support
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GDM3 and GDM4 require different configuration for max long frame
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definition, needs the QDMA to strip CRC on RX and require the SPORT to
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be enabled to correctly be identified.
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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---
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drivers/net/ethernet/airoha/airoha_eth.c | 12 ++++++++++--
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drivers/net/ethernet/airoha/airoha_regs.h | 1 +
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2 files changed, 11 insertions(+), 2 deletions(-)
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--- a/drivers/net/ethernet/airoha/airoha_eth.c
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+++ b/drivers/net/ethernet/airoha/airoha_eth.c
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@@ -514,8 +514,10 @@ static int airoha_fe_init(struct airoha_
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FIELD_PREP(IP_ASSEMBLE_PORT_MASK, 0) |
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FIELD_PREP(IP_ASSEMBLE_NBQ_MASK, 22));
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- airoha_fe_set(eth, REG_GDM_FWD_CFG(3), GDM_PAD_EN_MASK);
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- airoha_fe_set(eth, REG_GDM_FWD_CFG(4), GDM_PAD_EN_MASK);
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+ airoha_fe_set(eth, REG_GDM_FWD_CFG(3),
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+ GDM_PAD_EN_MASK | GDM_STRIP_CRC_MASK);
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+ airoha_fe_set(eth, REG_GDM_FWD_CFG(4),
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+ GDM_PAD_EN_MASK | GDM_STRIP_CRC_MASK);
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airoha_fe_crsn_qsel_init(eth);
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@@ -1624,7 +1626,8 @@ static int airoha_dev_open(struct net_de
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if (err)
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return err;
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- if (netdev_uses_dsa(dev))
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+ /* It seems GDM3 and GDM4 needs SPORT enabled to correctly work */
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+ if (netdev_uses_dsa(dev) || port->id > 2)
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airoha_fe_set(qdma->eth, REG_GDM_INGRESS_CFG(port->id),
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GDM_STAG_EN_MASK);
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else
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