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0f029b3d2b
This series also contains other improvement for hardware flow offload support Signed-off-by: Felix Fietkau <nbd@nbd.name>
160 lines
4.5 KiB
Diff
160 lines
4.5 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Mon, 21 Feb 2022 15:38:20 +0100
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Subject: [PATCH] net: ethernet: mtk_eth_soc: allocate struct mtk_ppe
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separately
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Preparation for adding more data to it, which will increase its size.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@@ -2305,7 +2305,7 @@ static int mtk_open(struct net_device *d
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if (err)
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return err;
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- if (eth->soc->offload_version && mtk_ppe_start(ð->ppe) == 0)
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+ if (eth->soc->offload_version && mtk_ppe_start(eth->ppe) == 0)
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gdm_config = MTK_GDMA_TO_PPE;
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mtk_gdm_config(eth, gdm_config);
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@@ -2379,7 +2379,7 @@ static int mtk_stop(struct net_device *d
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mtk_dma_free(eth);
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if (eth->soc->offload_version)
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- mtk_ppe_stop(ð->ppe);
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+ mtk_ppe_stop(eth->ppe);
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return 0;
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}
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@@ -3265,10 +3265,11 @@ static int mtk_probe(struct platform_dev
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}
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if (eth->soc->offload_version) {
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- err = mtk_ppe_init(ð->ppe, eth->dev,
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- eth->base + MTK_ETH_PPE_BASE, 2);
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- if (err)
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+ eth->ppe = mtk_ppe_init(eth->dev, eth->base + MTK_ETH_PPE_BASE, 2);
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+ if (!eth->ppe) {
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+ err = -ENOMEM;
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goto err_free_dev;
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+ }
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err = mtk_eth_offload_init(eth);
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if (err)
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
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@@ -976,7 +976,7 @@ struct mtk_eth {
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u32 rx_dma_l4_valid;
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int ip_align;
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- struct mtk_ppe ppe;
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+ struct mtk_ppe *ppe;
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struct rhashtable flow_table;
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};
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--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
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+++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
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@@ -384,10 +384,15 @@ int mtk_foe_entry_commit(struct mtk_ppe
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return hash;
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}
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-int mtk_ppe_init(struct mtk_ppe *ppe, struct device *dev, void __iomem *base,
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+struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base,
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int version)
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{
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struct mtk_foe_entry *foe;
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+ struct mtk_ppe *ppe;
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+
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+ ppe = devm_kzalloc(dev, sizeof(*ppe), GFP_KERNEL);
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+ if (!ppe)
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+ return NULL;
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/* need to allocate a separate device, since it PPE DMA access is
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* not coherent.
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@@ -399,13 +404,13 @@ int mtk_ppe_init(struct mtk_ppe *ppe, st
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foe = dmam_alloc_coherent(ppe->dev, MTK_PPE_ENTRIES * sizeof(*foe),
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&ppe->foe_phys, GFP_KERNEL);
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if (!foe)
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- return -ENOMEM;
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+ return NULL;
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ppe->foe_table = foe;
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mtk_ppe_debugfs_init(ppe);
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- return 0;
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+ return ppe;
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}
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static void mtk_ppe_init_foe_table(struct mtk_ppe *ppe)
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--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
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+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
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@@ -246,8 +246,7 @@ struct mtk_ppe {
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void *acct_table;
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};
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-int mtk_ppe_init(struct mtk_ppe *ppe, struct device *dev, void __iomem *base,
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- int version);
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+struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base, int version);
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int mtk_ppe_start(struct mtk_ppe *ppe);
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int mtk_ppe_stop(struct mtk_ppe *ppe);
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--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
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+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
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@@ -412,7 +412,7 @@ mtk_flow_offload_replace(struct mtk_eth
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entry->cookie = f->cookie;
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timestamp = mtk_eth_timestamp(eth);
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- hash = mtk_foe_entry_commit(ð->ppe, &foe, timestamp);
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+ hash = mtk_foe_entry_commit(eth->ppe, &foe, timestamp);
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if (hash < 0) {
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err = hash;
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goto free;
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@@ -427,7 +427,7 @@ mtk_flow_offload_replace(struct mtk_eth
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return 0;
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clear_flow:
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- mtk_foe_entry_clear(ð->ppe, hash);
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+ mtk_foe_entry_clear(eth->ppe, hash);
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free:
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kfree(entry);
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if (wed_index >= 0)
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@@ -445,7 +445,7 @@ mtk_flow_offload_destroy(struct mtk_eth
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if (!entry)
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return -ENOENT;
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- mtk_foe_entry_clear(ð->ppe, entry->hash);
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+ mtk_foe_entry_clear(eth->ppe, entry->hash);
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rhashtable_remove_fast(ð->flow_table, &entry->node,
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mtk_flow_ht_params);
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if (entry->wed_index >= 0)
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@@ -467,7 +467,7 @@ mtk_flow_offload_stats(struct mtk_eth *e
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if (!entry)
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return -ENOENT;
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- timestamp = mtk_foe_entry_timestamp(ð->ppe, entry->hash);
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+ timestamp = mtk_foe_entry_timestamp(eth->ppe, entry->hash);
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if (timestamp < 0)
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return -ETIMEDOUT;
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@@ -523,7 +523,7 @@ mtk_eth_setup_tc_block(struct net_device
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struct flow_block_cb *block_cb;
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flow_setup_cb_t *cb;
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- if (!eth->ppe.foe_table)
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+ if (!eth->ppe || !eth->ppe->foe_table)
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return -EOPNOTSUPP;
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if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
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@@ -575,7 +575,7 @@ int mtk_eth_setup_tc(struct net_device *
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int mtk_eth_offload_init(struct mtk_eth *eth)
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{
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- if (!eth->ppe.foe_table)
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+ if (!eth->ppe || !eth->ppe->foe_table)
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return 0;
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return rhashtable_init(ð->flow_table, &mtk_flow_ht_params);
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