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
2.6 KiB
Diff
74 lines
2.6 KiB
Diff
From 00272dbf6a52241a21145631f22dc5f03891078b Mon Sep 17 00:00:00 2001
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Message-ID: <00272dbf6a52241a21145631f22dc5f03891078b.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: Fri, 10 Apr 2026 14:47:08 +0200
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Subject: [PATCH 05/13] net: airoha: Move {cpu,fwd}_tx_packets in
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airoha_gdm_dev struct
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Since now multiple net_devices connected to different QDMA blocks can
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share the same GDM port, cpu_tx_packets and fwd_tx_packets fields can
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be overwritten with the value from a different QDMA block. In order to
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fix the issue move cpu_tx_packets and fwd_tx_packets fields from
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airoha_gdm_port struct to airoha_gdm_dev one.
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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 | 16 +++++++---------
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drivers/net/ethernet/airoha/airoha_eth.h | 7 +++----
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2 files changed, 10 insertions(+), 13 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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@@ -2547,19 +2547,17 @@ static int airoha_qdma_get_tx_ets_stats(
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struct tc_ets_qopt_offload *opt)
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{
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struct airoha_gdm_dev *dev = netdev_priv(netdev);
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- struct airoha_gdm_port *port = dev->port;
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+ struct airoha_qdma *qdma = dev->qdma;
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- u64 cpu_tx_packets = airoha_qdma_rr(dev->qdma,
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- REG_CNTR_VAL(channel << 1));
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- u64 fwd_tx_packets = airoha_qdma_rr(dev->qdma,
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+ u64 cpu_tx_packets = airoha_qdma_rr(qdma, REG_CNTR_VAL(channel << 1));
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+ u64 fwd_tx_packets = airoha_qdma_rr(qdma,
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REG_CNTR_VAL((channel << 1) + 1));
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- u64 tx_packets = (cpu_tx_packets - port->cpu_tx_packets) +
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- (fwd_tx_packets - port->fwd_tx_packets);
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+ u64 tx_packets = (cpu_tx_packets - dev->cpu_tx_packets) +
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+ (fwd_tx_packets - dev->fwd_tx_packets);
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_bstats_update(opt->stats.bstats, 0, tx_packets);
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-
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- port->cpu_tx_packets = cpu_tx_packets;
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- port->fwd_tx_packets = fwd_tx_packets;
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+ dev->cpu_tx_packets = cpu_tx_packets;
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+ dev->fwd_tx_packets = fwd_tx_packets;
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return 0;
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}
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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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@@ -561,6 +561,9 @@ struct airoha_gdm_dev {
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#endif
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DECLARE_BITMAP(qos_sq_bmap, AIROHA_NUM_QOS_CHANNELS);
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+ /* qos stats counters */
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+ u64 cpu_tx_packets;
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+ u64 fwd_tx_packets;
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};
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struct airoha_gdm_port {
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@@ -570,10 +573,6 @@ struct airoha_gdm_port {
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struct airoha_hw_stats stats;
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- /* qos stats counters */
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- u64 cpu_tx_packets;
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- u64 fwd_tx_packets;
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-
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struct metadata_dst *dsa_meta[AIROHA_MAX_DSA_PORTS];
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};
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