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[Description]

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Fix DMA init timeout in network-restart stress test :
1. Turn on the gmac forwarding when mkt_open is only halfway initialized
or  start deinit in mtk_close without forbid forwarding in gmac, this
can lead to unknown exceptions.
2. Update the init/deinit order in mtk_open/mtk_close.
3. Move the configure of gdm from mtk_mac_config to mtk_hw_init, avoid
asynchronous operations on gdm config.
4. Update related patches.

[Release-log]
N/A

Change-Id: I80f594948b0c0ddc7eb34bb47e78e2ff74229f6a
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6728789
This commit is contained in:
developer 2022-12-14 11:40:35 +08:00 committed by hanwckf
parent 6dfac66b1d
commit 830fabf704
3 changed files with 18 additions and 17 deletions
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3
target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_reset.c
View File

@ -345,7 +345,8 @@ void mtk_prepare_reset_fe(struct mtk_eth *eth)
mtk_w32(eth, val & ~(MAC_MCR_RX_EN), MTK_MAC_MCR(1));
/* Enable GDM drop */
mtk_gdm_config(eth, MTK_GDMA_DROP_ALL);
for (i = 0; i < MTK_MAC_COUNT; i++)
mtk_gdm_config(eth, i, MTK_GDMA_DROP_ALL);
/* Disable ADMA Rx */
val = mtk_r32(eth, MTK_PDMA_GLO_CFG);

30
target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.c
View File

@ -2611,29 +2611,27 @@ static int mtk_start_dma(struct mtk_eth *eth)
return 0;
}
void mtk_gdm_config(struct mtk_eth *eth, u32 config)
void mtk_gdm_config(struct mtk_eth *eth, u32 id, u32 config)
{
int i;
u32 val;
if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628))
return;
for (i = 0; i < MTK_MAC_COUNT; i++) {
u32 val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i));
val = mtk_r32(eth, MTK_GDMA_FWD_CFG(id));
/* default setup the forward port to send frame to PDMA */
val &= ~0xffff;
/* default setup the forward port to send frame to PDMA */
val &= ~0xffff;
/* Enable RX checksum */
val |= MTK_GDMA_ICS_EN | MTK_GDMA_TCS_EN | MTK_GDMA_UCS_EN;
/* Enable RX checksum */
val |= MTK_GDMA_ICS_EN | MTK_GDMA_TCS_EN | MTK_GDMA_UCS_EN;
val |= config;
val |= config;
if (eth->netdev[i] && netdev_uses_dsa(eth->netdev[i]))
val |= MTK_GDMA_SPECIAL_TAG;
if (eth->netdev[id] && netdev_uses_dsa(eth->netdev[id]))
val |= MTK_GDMA_SPECIAL_TAG;
mtk_w32(eth, val, MTK_GDMA_FWD_CFG(i));
}
mtk_w32(eth, val, MTK_GDMA_FWD_CFG(id));
}
static int mtk_open(struct net_device *dev)
@ -2657,7 +2655,6 @@ static int mtk_open(struct net_device *dev)
if (err)
return err;
mtk_gdm_config(eth, MTK_GDMA_TO_PDMA);
/* Indicates CDM to parse the MTK special tag from CPU */
if (netdev_uses_dsa(dev)) {
@ -2691,6 +2688,9 @@ static int mtk_open(struct net_device *dev)
if (!phy_node && eth->sgmii->regmap[mac->id]) {
regmap_write(eth->sgmii->regmap[mac->id], SGMSYS_QPHY_PWR_STATE_CTRL, 0);
}
mtk_gdm_config(eth, mac->id, MTK_GDMA_TO_PDMA);
return 0;
}
@ -2725,6 +2725,7 @@ static int mtk_stop(struct net_device *dev)
u32 val = 0;
struct device_node *phy_node;
mtk_gdm_config(eth, mac->id, MTK_GDMA_DROP_ALL);
netif_tx_disable(dev);
phy_node = of_parse_phandle(mac->of_node, "phy-handle", 0);
@ -2750,7 +2751,6 @@ static int mtk_stop(struct net_device *dev)
if (!refcount_dec_and_test(&eth->dma_refcnt))
return 0;
mtk_gdm_config(eth, MTK_GDMA_DROP_ALL);
mtk_tx_irq_disable(eth, MTK_TX_DONE_INT);
mtk_rx_irq_disable(eth, MTK_RX_DONE_INT(0));

2
target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.h
View File

@ -1316,7 +1316,7 @@ void mtk_sgmii_restart_an(struct mtk_eth *eth, int mac_id);
int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id);
int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id);
int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id);
void mtk_gdm_config(struct mtk_eth *eth, u32 config);
void mtk_gdm_config(struct mtk_eth *eth, u32 id, u32 config);
void ethsys_reset(struct mtk_eth *eth, u32 reset_bits);
#endif /* MTK_ETH_H */