net: airoha: fix BQL imbalance in TX path

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Fix a possible BQL imbalance in airoha_dev_xmit(), where inflight
packets are accounted only for the AIROHA_NUM_TX_RING netdev TX
queues. The queue index is computed as:

    qid = skb_get_queue_mapping(skb) % ARRAY_SIZE(qdma->q_tx)
    txq = netdev_get_tx_queue(dev, qid);

However, airoha_qdma_tx_napi_poll() accounts completions across all
netdev TX queues (num_tx_queues), leading to inconsistent BQL
accounting.

Also reset all netdev TX queues in the ndo_stop callback.

Fixes: 1d30417410 ("net: airoha: Implement BQL support")
Fixes: c9f947769b ("net: airoha: Reset BQL stopping the netdevice")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260421-airoha-fix-bql-v1-1-f135afe4275b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Lorenzo Bianconi 2026-04-21 08:35:11 +02:00 • committed by Jakub Kicinski

parent 5bd6252b9d

commit 2d9f5a1182

1 changed files with 3 additions and 4 deletions

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7

drivers/net/ethernet/airoha/airoha_eth.c

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