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- From: Felix Fietkau <[email protected]>
- Date: Fri, 4 Nov 2022 19:49:08 +0100
- Subject: [PATCH] net: ethernet: mtk_eth_soc: avoid port_mg assignment on
- MT7622 and newer
- On newer chips, this field is unused and contains some bits related to queue
- assignment. Initialize it to 0 in those cases.
- Fix offload_version on MT7621 and MT7623, which still need the previous value.
- Signed-off-by: Felix Fietkau <[email protected]>
- ---
- --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
- +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
- @@ -4424,7 +4424,7 @@ static const struct mtk_soc_data mt7621_
- .hw_features = MTK_HW_FEATURES,
- .required_clks = MT7621_CLKS_BITMAP,
- .required_pctl = false,
- - .offload_version = 2,
- + .offload_version = 1,
- .hash_offset = 2,
- .foe_entry_size = sizeof(struct mtk_foe_entry) - 16,
- .txrx = {
- @@ -4463,7 +4463,7 @@ static const struct mtk_soc_data mt7623_
- .hw_features = MTK_HW_FEATURES,
- .required_clks = MT7623_CLKS_BITMAP,
- .required_pctl = true,
- - .offload_version = 2,
- + .offload_version = 1,
- .hash_offset = 2,
- .foe_entry_size = sizeof(struct mtk_foe_entry) - 16,
- .txrx = {
- --- a/drivers/net/ethernet/mediatek/mtk_ppe.c
- +++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
- @@ -175,6 +175,8 @@ int mtk_foe_entry_prepare(struct mtk_eth
- val = FIELD_PREP(MTK_FOE_IB2_DEST_PORT_V2, pse_port) |
- FIELD_PREP(MTK_FOE_IB2_PORT_AG_V2, 0xf);
- } else {
- + int port_mg = eth->soc->offload_version > 1 ? 0 : 0x3f;
- +
- val = FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_BIND) |
- FIELD_PREP(MTK_FOE_IB1_PACKET_TYPE, type) |
- FIELD_PREP(MTK_FOE_IB1_UDP, l4proto == IPPROTO_UDP) |
- @@ -182,7 +184,7 @@ int mtk_foe_entry_prepare(struct mtk_eth
- entry->ib1 = val;
-
- val = FIELD_PREP(MTK_FOE_IB2_DEST_PORT, pse_port) |
- - FIELD_PREP(MTK_FOE_IB2_PORT_MG, 0x3f) |
- + FIELD_PREP(MTK_FOE_IB2_PORT_MG, port_mg) |
- FIELD_PREP(MTK_FOE_IB2_PORT_AG, 0x1f);
- }
-
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