* [PATCH net-next 0/2] net: airoha: Enable hw acceleration for PPPoE traffic
@ 2025-05-23 19:23 Lorenzo Bianconi
2025-05-23 19:23 ` [PATCH net-next 1/2] net: airoha: Initialize PPE UPDMEM source-mac table Lorenzo Bianconi
2025-05-23 19:23 ` [PATCH net-next 2/2] net: airoha: Add PPPoE offload support Lorenzo Bianconi
0 siblings, 2 replies; 4+ messages in thread
From: Lorenzo Bianconi @ 2025-05-23 19:23 UTC (permalink / raw)
To: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni
Cc: linux-arm-kernel, linux-mediatek, netdev, Lorenzo Bianconi
Initialize PPE UPDMEM source-mac table used during IPv6 traffic hw
acceleration.
Introduce flowtable hw acceleration for PPPoE traffic.
---
Lorenzo Bianconi (2):
net: airoha: Initialize PPE UPDMEM source-mac table
net: airoha: Add PPPoE offload support
drivers/net/ethernet/airoha/airoha_eth.c | 2 ++
drivers/net/ethernet/airoha/airoha_eth.h | 1 +
drivers/net/ethernet/airoha/airoha_ppe.c | 60 ++++++++++++++++++++++++-------
drivers/net/ethernet/airoha/airoha_regs.h | 10 ++++++
4 files changed, 60 insertions(+), 13 deletions(-)
---
base-commit: ea15e046263b19e91ffd827645ae5dfa44ebd044
change-id: 20250413-b4-airoha-flowtable-pppoe-2c199f5059ea
Best regards,
--
Lorenzo Bianconi <lorenzo@kernel.org>
^ permalink raw reply [flat|nested] 4+ messages in thread* [PATCH net-next 1/2] net: airoha: Initialize PPE UPDMEM source-mac table 2025-05-23 19:23 [PATCH net-next 0/2] net: airoha: Enable hw acceleration for PPPoE traffic Lorenzo Bianconi @ 2025-05-23 19:23 ` Lorenzo Bianconi 2025-05-27 14:22 ` Lorenzo Bianconi 2025-05-23 19:23 ` [PATCH net-next 2/2] net: airoha: Add PPPoE offload support Lorenzo Bianconi 1 sibling, 1 reply; 4+ messages in thread From: Lorenzo Bianconi @ 2025-05-23 19:23 UTC (permalink / raw) To: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni Cc: linux-arm-kernel, linux-mediatek, netdev, Lorenzo Bianconi UPDMEM source-mac table is a key-value map used to store devices mac addresses according to the port identifier. UPDMEM source mac table is used during IPv6 traffic hw acceleration since PPE entries, for space constraints, do not contain the full source mac address but just the identifier in the UPDMEM source-mac table. Fixes: 00a7678310fe ("net: airoha: Introduce flowtable offload support") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> --- drivers/net/ethernet/airoha/airoha_eth.c | 2 ++ drivers/net/ethernet/airoha/airoha_eth.h | 1 + drivers/net/ethernet/airoha/airoha_ppe.c | 25 ++++++++++++++++++++++++- drivers/net/ethernet/airoha/airoha_regs.h | 10 ++++++++++ 4 files changed, 37 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c index 0d627e511266d94e079e8a87d2f812fb14b4ad07..e4c67c7bbf215d448640f978cd0d9d50abd73644 100644 --- a/drivers/net/ethernet/airoha/airoha_eth.c +++ b/drivers/net/ethernet/airoha/airoha_eth.c @@ -92,6 +92,8 @@ static void airoha_set_macaddr(struct airoha_gdm_port *port, const u8 *addr) val = (addr[3] << 16) | (addr[4] << 8) | addr[5]; airoha_fe_wr(eth, REG_FE_MAC_LMIN(reg), val); airoha_fe_wr(eth, REG_FE_MAC_LMAX(reg), val); + + airoha_ppe_init_upd_mem(port); } static void airoha_set_gdm_port_fwd_cfg(struct airoha_eth *eth, u32 addr, diff --git a/drivers/net/ethernet/airoha/airoha_eth.h b/drivers/net/ethernet/airoha/airoha_eth.h index 531a3c49c1562a986111a1ce1c215c8751c16e09..a951246c0171e14497b510d3029fc0a7f891efe6 100644 --- a/drivers/net/ethernet/airoha/airoha_eth.h +++ b/drivers/net/ethernet/airoha/airoha_eth.h @@ -611,6 +611,7 @@ void airoha_ppe_check_skb(struct airoha_ppe *ppe, struct sk_buff *skb, int airoha_ppe_setup_tc_block_cb(struct net_device *dev, void *type_data); int airoha_ppe_init(struct airoha_eth *eth); void airoha_ppe_deinit(struct airoha_eth *eth); +void airoha_ppe_init_upd_mem(struct airoha_gdm_port *port); struct airoha_foe_entry *airoha_ppe_foe_get_entry(struct airoha_ppe *ppe, u32 hash); void airoha_ppe_foe_entry_get_stats(struct airoha_ppe *ppe, u32 hash, diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c index 2d273937f19cf304ab4b821241fdc3ea93604f0e..1d5a04eb82a6645e2b6a22ff4e694275ef1727d8 100644 --- a/drivers/net/ethernet/airoha/airoha_ppe.c +++ b/drivers/net/ethernet/airoha/airoha_ppe.c @@ -223,6 +223,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth, int dsa_port = airoha_get_dsa_port(&dev); struct airoha_foe_mac_info_common *l2; u32 qdata, ports_pad, val; + u8 smac_id = 0xf; memset(hwe, 0, sizeof(*hwe)); @@ -251,6 +252,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth, else pse_port = 2; /* uplink relies on GDM2 loopback */ val |= FIELD_PREP(AIROHA_FOE_IB2_PSE_PORT, pse_port); + smac_id = port->id; } if (is_multicast_ether_addr(data->eth.h_dest)) @@ -285,7 +287,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth, hwe->ipv4.l2.src_mac_lo = get_unaligned_be16(data->eth.h_source + 4); } else { - l2->src_mac_hi = FIELD_PREP(AIROHA_FOE_MAC_SMAC_ID, 0xf); + l2->src_mac_hi = FIELD_PREP(AIROHA_FOE_MAC_SMAC_ID, smac_id); } if (data->vlan.num) { @@ -1232,6 +1234,27 @@ void airoha_ppe_check_skb(struct airoha_ppe *ppe, struct sk_buff *skb, airoha_ppe_foe_insert_entry(ppe, skb, hash); } +void airoha_ppe_init_upd_mem(struct airoha_gdm_port *port) +{ + struct airoha_eth *eth = port->qdma->eth; + struct net_device *dev = port->dev; + const u8 *addr = dev->dev_addr; + u32 val; + + val = (addr[2] << 24) | (addr[3] << 16) | (addr[4] << 8) | addr[5]; + airoha_fe_wr(eth, REG_UPDMEM_DATA(0), val); + airoha_fe_wr(eth, REG_UPDMEM_CTRL(0), + FIELD_PREP(PPE_UPDMEM_ADDR_MASK, port->id) | + PPE_UPDMEM_WR_MASK | PPE_UPDMEM_REQ_MASK); + + val = (addr[0] << 8) | addr[1]; + airoha_fe_wr(eth, REG_UPDMEM_DATA(0), val); + airoha_fe_wr(eth, REG_UPDMEM_CTRL(0), + FIELD_PREP(PPE_UPDMEM_ADDR_MASK, port->id) | + FIELD_PREP(PPE_UPDMEM_OFFSET_MASK, 1) | + PPE_UPDMEM_WR_MASK | PPE_UPDMEM_REQ_MASK); +} + int airoha_ppe_init(struct airoha_eth *eth) { struct airoha_ppe *ppe; diff --git a/drivers/net/ethernet/airoha/airoha_regs.h b/drivers/net/ethernet/airoha/airoha_regs.h index d931530fc96fb00ada36a6ad37fa295865a6f0a8..04187eb40ec674ec5a4ccfc968bb4bd579a53095 100644 --- a/drivers/net/ethernet/airoha/airoha_regs.h +++ b/drivers/net/ethernet/airoha/airoha_regs.h @@ -313,6 +313,16 @@ #define REG_PPE_RAM_BASE(_n) (((_n) ? PPE2_BASE : PPE1_BASE) + 0x320) #define REG_PPE_RAM_ENTRY(_m, _n) (REG_PPE_RAM_BASE(_m) + ((_n) << 2)) +#define REG_UPDMEM_CTRL(_n) (((_n) ? PPE2_BASE : PPE1_BASE) + 0x370) +#define PPE_UPDMEM_ACK_MASK BIT(31) +#define PPE_UPDMEM_ADDR_MASK GENMASK(11, 8) +#define PPE_UPDMEM_OFFSET_MASK GENMASK(7, 4) +#define PPE_UPDMEM_SEL_MASK GENMASK(3, 2) +#define PPE_UPDMEM_WR_MASK BIT(1) +#define PPE_UPDMEM_REQ_MASK BIT(0) + +#define REG_UPDMEM_DATA(_n) (((_n) ? PPE2_BASE : PPE1_BASE) + 0x374) + #define REG_FE_GDM_TX_OK_PKT_CNT_H(_n) (GDM_BASE(_n) + 0x280) #define REG_FE_GDM_TX_OK_BYTE_CNT_H(_n) (GDM_BASE(_n) + 0x284) #define REG_FE_GDM_TX_ETH_PKT_CNT_H(_n) (GDM_BASE(_n) + 0x288) -- 2.49.0 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH net-next 1/2] net: airoha: Initialize PPE UPDMEM source-mac table 2025-05-23 19:23 ` [PATCH net-next 1/2] net: airoha: Initialize PPE UPDMEM source-mac table Lorenzo Bianconi @ 2025-05-27 14:22 ` Lorenzo Bianconi 0 siblings, 0 replies; 4+ messages in thread From: Lorenzo Bianconi @ 2025-05-27 14:22 UTC (permalink / raw) To: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni Cc: linux-arm-kernel, linux-mediatek, netdev [-- Attachment #1: Type: text/plain, Size: 6004 bytes --] > UPDMEM source-mac table is a key-value map used to store devices mac > addresses according to the port identifier. UPDMEM source mac table is > used during IPv6 traffic hw acceleration since PPE entries, for space > constraints, do not contain the full source mac address but just the > identifier in the UPDMEM source-mac table. This patch has now a conflict with the following commit: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=c683e378c0907e66cee939145edf936c254ff1e3 Since this is actually a fix, I can repost targeting net tree as soon as it is aligned to net-next. Regards, Lorenzo > > Fixes: 00a7678310fe ("net: airoha: Introduce flowtable offload support") > Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> > --- > drivers/net/ethernet/airoha/airoha_eth.c | 2 ++ > drivers/net/ethernet/airoha/airoha_eth.h | 1 + > drivers/net/ethernet/airoha/airoha_ppe.c | 25 ++++++++++++++++++++++++- > drivers/net/ethernet/airoha/airoha_regs.h | 10 ++++++++++ > 4 files changed, 37 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c > index 0d627e511266d94e079e8a87d2f812fb14b4ad07..e4c67c7bbf215d448640f978cd0d9d50abd73644 100644 > --- a/drivers/net/ethernet/airoha/airoha_eth.c > +++ b/drivers/net/ethernet/airoha/airoha_eth.c > @@ -92,6 +92,8 @@ static void airoha_set_macaddr(struct airoha_gdm_port *port, const u8 *addr) > val = (addr[3] << 16) | (addr[4] << 8) | addr[5]; > airoha_fe_wr(eth, REG_FE_MAC_LMIN(reg), val); > airoha_fe_wr(eth, REG_FE_MAC_LMAX(reg), val); > + > + airoha_ppe_init_upd_mem(port); > } > > static void airoha_set_gdm_port_fwd_cfg(struct airoha_eth *eth, u32 addr, > diff --git a/drivers/net/ethernet/airoha/airoha_eth.h b/drivers/net/ethernet/airoha/airoha_eth.h > index 531a3c49c1562a986111a1ce1c215c8751c16e09..a951246c0171e14497b510d3029fc0a7f891efe6 100644 > --- a/drivers/net/ethernet/airoha/airoha_eth.h > +++ b/drivers/net/ethernet/airoha/airoha_eth.h > @@ -611,6 +611,7 @@ void airoha_ppe_check_skb(struct airoha_ppe *ppe, struct sk_buff *skb, > int airoha_ppe_setup_tc_block_cb(struct net_device *dev, void *type_data); > int airoha_ppe_init(struct airoha_eth *eth); > void airoha_ppe_deinit(struct airoha_eth *eth); > +void airoha_ppe_init_upd_mem(struct airoha_gdm_port *port); > struct airoha_foe_entry *airoha_ppe_foe_get_entry(struct airoha_ppe *ppe, > u32 hash); > void airoha_ppe_foe_entry_get_stats(struct airoha_ppe *ppe, u32 hash, > diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c > index 2d273937f19cf304ab4b821241fdc3ea93604f0e..1d5a04eb82a6645e2b6a22ff4e694275ef1727d8 100644 > --- a/drivers/net/ethernet/airoha/airoha_ppe.c > +++ b/drivers/net/ethernet/airoha/airoha_ppe.c > @@ -223,6 +223,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth, > int dsa_port = airoha_get_dsa_port(&dev); > struct airoha_foe_mac_info_common *l2; > u32 qdata, ports_pad, val; > + u8 smac_id = 0xf; > > memset(hwe, 0, sizeof(*hwe)); > > @@ -251,6 +252,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth, > else > pse_port = 2; /* uplink relies on GDM2 loopback */ > val |= FIELD_PREP(AIROHA_FOE_IB2_PSE_PORT, pse_port); > + smac_id = port->id; > } > > if (is_multicast_ether_addr(data->eth.h_dest)) > @@ -285,7 +287,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth, > hwe->ipv4.l2.src_mac_lo = > get_unaligned_be16(data->eth.h_source + 4); > } else { > - l2->src_mac_hi = FIELD_PREP(AIROHA_FOE_MAC_SMAC_ID, 0xf); > + l2->src_mac_hi = FIELD_PREP(AIROHA_FOE_MAC_SMAC_ID, smac_id); > } > > if (data->vlan.num) { > @@ -1232,6 +1234,27 @@ void airoha_ppe_check_skb(struct airoha_ppe *ppe, struct sk_buff *skb, > airoha_ppe_foe_insert_entry(ppe, skb, hash); > } > > +void airoha_ppe_init_upd_mem(struct airoha_gdm_port *port) > +{ > + struct airoha_eth *eth = port->qdma->eth; > + struct net_device *dev = port->dev; > + const u8 *addr = dev->dev_addr; > + u32 val; > + > + val = (addr[2] << 24) | (addr[3] << 16) | (addr[4] << 8) | addr[5]; > + airoha_fe_wr(eth, REG_UPDMEM_DATA(0), val); > + airoha_fe_wr(eth, REG_UPDMEM_CTRL(0), > + FIELD_PREP(PPE_UPDMEM_ADDR_MASK, port->id) | > + PPE_UPDMEM_WR_MASK | PPE_UPDMEM_REQ_MASK); > + > + val = (addr[0] << 8) | addr[1]; > + airoha_fe_wr(eth, REG_UPDMEM_DATA(0), val); > + airoha_fe_wr(eth, REG_UPDMEM_CTRL(0), > + FIELD_PREP(PPE_UPDMEM_ADDR_MASK, port->id) | > + FIELD_PREP(PPE_UPDMEM_OFFSET_MASK, 1) | > + PPE_UPDMEM_WR_MASK | PPE_UPDMEM_REQ_MASK); > +} > + > int airoha_ppe_init(struct airoha_eth *eth) > { > struct airoha_ppe *ppe; > diff --git a/drivers/net/ethernet/airoha/airoha_regs.h b/drivers/net/ethernet/airoha/airoha_regs.h > index d931530fc96fb00ada36a6ad37fa295865a6f0a8..04187eb40ec674ec5a4ccfc968bb4bd579a53095 100644 > --- a/drivers/net/ethernet/airoha/airoha_regs.h > +++ b/drivers/net/ethernet/airoha/airoha_regs.h > @@ -313,6 +313,16 @@ > #define REG_PPE_RAM_BASE(_n) (((_n) ? PPE2_BASE : PPE1_BASE) + 0x320) > #define REG_PPE_RAM_ENTRY(_m, _n) (REG_PPE_RAM_BASE(_m) + ((_n) << 2)) > > +#define REG_UPDMEM_CTRL(_n) (((_n) ? PPE2_BASE : PPE1_BASE) + 0x370) > +#define PPE_UPDMEM_ACK_MASK BIT(31) > +#define PPE_UPDMEM_ADDR_MASK GENMASK(11, 8) > +#define PPE_UPDMEM_OFFSET_MASK GENMASK(7, 4) > +#define PPE_UPDMEM_SEL_MASK GENMASK(3, 2) > +#define PPE_UPDMEM_WR_MASK BIT(1) > +#define PPE_UPDMEM_REQ_MASK BIT(0) > + > +#define REG_UPDMEM_DATA(_n) (((_n) ? PPE2_BASE : PPE1_BASE) + 0x374) > + > #define REG_FE_GDM_TX_OK_PKT_CNT_H(_n) (GDM_BASE(_n) + 0x280) > #define REG_FE_GDM_TX_OK_BYTE_CNT_H(_n) (GDM_BASE(_n) + 0x284) > #define REG_FE_GDM_TX_ETH_PKT_CNT_H(_n) (GDM_BASE(_n) + 0x288) > > -- > 2.49.0 > [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 228 bytes --] ^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH net-next 2/2] net: airoha: Add PPPoE offload support 2025-05-23 19:23 [PATCH net-next 0/2] net: airoha: Enable hw acceleration for PPPoE traffic Lorenzo Bianconi 2025-05-23 19:23 ` [PATCH net-next 1/2] net: airoha: Initialize PPE UPDMEM source-mac table Lorenzo Bianconi @ 2025-05-23 19:23 ` Lorenzo Bianconi 1 sibling, 0 replies; 4+ messages in thread From: Lorenzo Bianconi @ 2025-05-23 19:23 UTC (permalink / raw) To: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni Cc: linux-arm-kernel, linux-mediatek, netdev, Lorenzo Bianconi Introduce flowtable hw acceleration for PPPoE traffic. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> --- drivers/net/ethernet/airoha/airoha_ppe.c | 37 +++++++++++++++++++++----------- 1 file changed, 24 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c index 1d5a04eb82a6645e2b6a22ff4e694275ef1727d8..6571511cf4bb8c341b03b94ba8e444f558cbf125 100644 --- a/drivers/net/ethernet/airoha/airoha_ppe.c +++ b/drivers/net/ethernet/airoha/airoha_ppe.c @@ -232,6 +232,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth, FIELD_PREP(AIROHA_FOE_IB1_BIND_UDP, l4proto == IPPROTO_UDP) | FIELD_PREP(AIROHA_FOE_IB1_BIND_VLAN_LAYER, data->vlan.num) | FIELD_PREP(AIROHA_FOE_IB1_BIND_VPM, data->vlan.num) | + FIELD_PREP(AIROHA_FOE_IB1_BIND_PPPOE, data->pppoe.num) | AIROHA_FOE_IB1_BIND_TTL; hwe->ib1 = val; @@ -274,33 +275,38 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth, hwe->ipv6.data = qdata; hwe->ipv6.ib2 = val; l2 = &hwe->ipv6.l2; + l2->etype = ETH_P_IPV6; } else { hwe->ipv4.data = qdata; hwe->ipv4.ib2 = val; l2 = &hwe->ipv4.l2.common; + l2->etype = ETH_P_IP; } l2->dest_mac_hi = get_unaligned_be32(data->eth.h_dest); l2->dest_mac_lo = get_unaligned_be16(data->eth.h_dest + 4); if (type <= PPE_PKT_TYPE_IPV4_DSLITE) { + struct airoha_foe_mac_info *mac_info; + l2->src_mac_hi = get_unaligned_be32(data->eth.h_source); hwe->ipv4.l2.src_mac_lo = get_unaligned_be16(data->eth.h_source + 4); - } else { - l2->src_mac_hi = FIELD_PREP(AIROHA_FOE_MAC_SMAC_ID, smac_id); - } - if (data->vlan.num) { - l2->etype = dsa_port >= 0 ? BIT(dsa_port) : 0; - l2->vlan1 = data->vlan.hdr[0].id; - if (data->vlan.num == 2) - l2->vlan2 = data->vlan.hdr[1].id; - } else if (dsa_port >= 0) { - l2->etype = BIT(15) | BIT(dsa_port); - } else if (type >= PPE_PKT_TYPE_IPV6_ROUTE_3T) { - l2->etype = ETH_P_IPV6; + mac_info = (struct airoha_foe_mac_info *)l2; + mac_info->pppoe_id = data->pppoe.sid; } else { - l2->etype = ETH_P_IP; + l2->src_mac_hi = FIELD_PREP(AIROHA_FOE_MAC_SMAC_ID, smac_id) | + FIELD_PREP(AIROHA_FOE_MAC_PPPOE_ID, + data->pppoe.sid); + } + l2->vlan1 = data->vlan.hdr[0].id; + l2->vlan2 = data->vlan.hdr[1].id; + + if (dsa_port >= 0) { + l2->etype = BIT(dsa_port); + l2->etype |= !data->vlan.num ? BIT(15) : 0; + } else if (data->pppoe.num) { + l2->etype = ETH_P_PPP_SES; } return 0; @@ -944,6 +950,11 @@ static int airoha_ppe_flow_offload_replace(struct airoha_gdm_port *port, case FLOW_ACTION_VLAN_POP: break; case FLOW_ACTION_PPPOE_PUSH: + if (data.pppoe.num == 1 || data.vlan.num == 2) + return -EOPNOTSUPP; + + data.pppoe.sid = act->pppoe.sid; + data.pppoe.num++; break; default: return -EOPNOTSUPP; -- 2.49.0 ^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2025-05-27 14:26 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2025-05-23 19:23 [PATCH net-next 0/2] net: airoha: Enable hw acceleration for PPPoE traffic Lorenzo Bianconi 2025-05-23 19:23 ` [PATCH net-next 1/2] net: airoha: Initialize PPE UPDMEM source-mac table Lorenzo Bianconi 2025-05-27 14:22 ` Lorenzo Bianconi 2025-05-23 19:23 ` [PATCH net-next 2/2] net: airoha: Add PPPoE offload support Lorenzo Bianconi
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