diff options
| author | Felix Fietkau <nbd@nbd.name> | 2021-03-24 02:30:53 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-24 12:48:39 -0700 |
| commit | ba37b7caf1ed2395cc84d8f823ff933975f1f789 (patch) | |
| tree | 49bc68cb76f1a5d61ff856d34c3b9121d7e78ae7 /drivers/net/ethernet/mediatek/mtk_eth_soc.c | |
| parent | d5c53da2b4a57f0d0e51d8220c46e5f5935fe9f3 (diff) | |
net: ethernet: mtk_eth_soc: add support for initializing the PPE
The PPE (packet processing engine) is used to offload NAT/routed or even
bridged flows. This patch brings up the PPE and uses it to get a packet
hash. It also contains some functionality that will be used to bring up
flow offloading.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mediatek/mtk_eth_soc.c')
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index cf65fbdf60e0..67605b9a3916 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -2258,12 +2258,17 @@ static int mtk_open(struct net_device *dev) /* we run 2 netdevs on the same dma ring so we only bring it up once */ if (!refcount_read(ð->dma_refcnt)) { - int err = mtk_start_dma(eth); + u32 gdm_config = MTK_GDMA_TO_PDMA; + int err; + err = mtk_start_dma(eth); if (err) return err; - mtk_gdm_config(eth, MTK_GDMA_TO_PDMA); + if (eth->soc->offload_version && mtk_ppe_start(ð->ppe) == 0) + gdm_config = MTK_GDMA_TO_PPE; + + mtk_gdm_config(eth, gdm_config); napi_enable(ð->tx_napi); napi_enable(ð->rx_napi); @@ -2330,6 +2335,9 @@ static int mtk_stop(struct net_device *dev) mtk_dma_free(eth); + if (eth->soc->offload_version) + mtk_ppe_stop(ð->ppe); + return 0; } @@ -3091,6 +3099,13 @@ static int mtk_probe(struct platform_device *pdev) goto err_free_dev; } + if (eth->soc->offload_version) { + err = mtk_ppe_init(ð->ppe, eth->dev, + eth->base + MTK_ETH_PPE_BASE, 2); + if (err) + goto err_free_dev; + } + for (i = 0; i < MTK_MAX_DEVS; i++) { if (!eth->netdev[i]) continue; @@ -3165,6 +3180,7 @@ static const struct mtk_soc_data mt7621_data = { .hw_features = MTK_HW_FEATURES, .required_clks = MT7621_CLKS_BITMAP, .required_pctl = false, + .offload_version = 2, }; static const struct mtk_soc_data mt7622_data = { @@ -3173,6 +3189,7 @@ static const struct mtk_soc_data mt7622_data = { .hw_features = MTK_HW_FEATURES, .required_clks = MT7622_CLKS_BITMAP, .required_pctl = false, + .offload_version = 2, }; static const struct mtk_soc_data mt7623_data = { |