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Lorenzo Bianconi
d22ceb8d24
Add hardware TCP Large Receive Offload (LRO) support to the airoha_eth driver, leveraging the EN7581/AN7583 SoC's 8 dedicated LRO hardware queues mapped to RX queues 24–31. LRO hw offloading does not support Scatter-Gather (SG) so it is required to increase the page_pool allocation order to 2 for RX queues 24–31 (LRO queues). Performance comparison between GRO and hw LRO has been carried out using a 10Gbps NIC: GRO: ~2.7 Gbps LRO: ~8.1 Gbps Tested-by: Madhur Agrawal <madhur.agrawal@airoha.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://github.com/openwrt/openwrt/pull/23530 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
74 lines
2.9 KiB
Diff
74 lines
2.9 KiB
Diff
From 32bfd008c19f9ad55514181d8cd02e14bf384475 Mon Sep 17 00:00:00 2001
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Message-ID: <32bfd008c19f9ad55514181d8cd02e14bf384475.1779348625.git.lorenzo@kernel.org>
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In-Reply-To: <e15783f7c987e199ecf80b3d858ed5a86d33c508.1779348625.git.lorenzo@kernel.org>
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References: <e15783f7c987e199ecf80b3d858ed5a86d33c508.1779348625.git.lorenzo@kernel.org>
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From: Lorenzo Bianconi <lorenzo@kernel.org>
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Date: Sat, 13 Dec 2025 10:06:45 +0100
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Subject: [PATCH 03/13] net: airoha: Rely on airoha_gdm_dev pointer in
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airoha_is_lan_gdm_port()
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Rename airoha_is_lan_gdm_port in airoha_is_lan_gdm_dev. Moreover, rely
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on airoha_gdm_dev pointer in airoha_is_lan_gdm_dev() instead of
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airoha_gdm_port one.
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This is a preliminary patch to support multiple net_devices connected to
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the same GDM{3,4} port via an external hw arbiter.
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Tested-by: Xuegang Lu <xuegang.lu@airoha.com>
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Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
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---
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drivers/net/ethernet/airoha/airoha_eth.c | 6 ++----
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drivers/net/ethernet/airoha/airoha_eth.h | 4 +++-
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drivers/net/ethernet/airoha/airoha_ppe.c | 2 +-
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3 files changed, 6 insertions(+), 6 deletions(-)
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--- a/drivers/net/ethernet/airoha/airoha_eth.c
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+++ b/drivers/net/ethernet/airoha/airoha_eth.c
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@@ -82,12 +82,10 @@ static bool airhoa_is_phy_external(struc
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static void airoha_set_macaddr(struct airoha_gdm_dev *dev, const u8 *addr)
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{
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- struct airoha_gdm_port *port = dev->port;
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struct airoha_eth *eth = dev->eth;
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u32 val, reg;
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- reg = airoha_is_lan_gdm_port(port) ? REG_FE_LAN_MAC_H
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- : REG_FE_WAN_MAC_H;
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+ reg = airoha_is_lan_gdm_dev(dev) ? REG_FE_LAN_MAC_H : REG_FE_WAN_MAC_H;
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val = (addr[0] << 16) | (addr[1] << 8) | addr[2];
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airoha_fe_wr(eth, reg, val);
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@@ -2037,7 +2035,7 @@ static int airoha_dev_init(struct net_de
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int i;
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/* QDMA0 is used for lan ports while QDMA1 is used for WAN ports */
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- dev->qdma = ð->qdma[!airoha_is_lan_gdm_port(port)];
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+ dev->qdma = ð->qdma[!airoha_is_lan_gdm_dev(dev)];
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dev->dev->irq = dev->qdma->irq_banks[0].irq;
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airoha_set_macaddr(dev, netdev->dev_addr);
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--- a/drivers/net/ethernet/airoha/airoha_eth.h
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+++ b/drivers/net/ethernet/airoha/airoha_eth.h
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@@ -664,8 +664,10 @@ static inline u16 airoha_qdma_get_txq(st
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return qid % ARRAY_SIZE(qdma->q_tx);
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}
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-static inline bool airoha_is_lan_gdm_port(struct airoha_gdm_port *port)
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+static inline bool airoha_is_lan_gdm_dev(struct airoha_gdm_dev *dev)
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{
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+ struct airoha_gdm_port *port = dev->port;
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+
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/* GDM1 port on EN7581 SoC is connected to the lan dsa switch.
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* GDM{2,3,4} can be used as wan port connected to an external
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* phy module.
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--- a/drivers/net/ethernet/airoha/airoha_ppe.c
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+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
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@@ -365,7 +365,7 @@ static int airoha_ppe_foe_entry_prepare(
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/* For downlink traffic consume SRAM memory for hw
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* forwarding descriptors queue.
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*/
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- if (airoha_is_lan_gdm_port(port))
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+ if (airoha_is_lan_gdm_dev(dev))
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val |= AIROHA_FOE_IB2_FAST_PATH;
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if (dsa_port >= 0)
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val |= FIELD_PREP(AIROHA_FOE_IB2_NBQ,
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