diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2024-10-12 11:01:11 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-10-15 09:57:32 -0700 |
| commit | 1d304174106c93ce05f6088813ad7203b3eb381a (patch) | |
| tree | 6079b05e2d91e9041418c9f2e6e37f27ca22f574 | |
| parent | 57c28e93694de1d95dfdc70ea5c0e3008b3376f7 (diff) | |
net: airoha: Implement BQL support
Introduce BQL support in the airoha_eth driver reporting to the kernel
info about tx hw DMA queues in order to avoid bufferbloat and keep the
latency small.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20241012-en7581-bql-v2-1-4deb4efdb60b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mediatek/airoha_eth.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mediatek/airoha_eth.c b/drivers/net/ethernet/mediatek/airoha_eth.c index e037f725f6d3..836a957aad77 100644 --- a/drivers/net/ethernet/mediatek/airoha_eth.c +++ b/drivers/net/ethernet/mediatek/airoha_eth.c @@ -1709,9 +1709,11 @@ static int airoha_qdma_tx_napi_poll(struct napi_struct *napi, int budget) WRITE_ONCE(desc->msg1, 0); if (skb) { + u16 queue = skb_get_queue_mapping(skb); struct netdev_queue *txq; - txq = netdev_get_tx_queue(skb->dev, qid); + txq = netdev_get_tx_queue(skb->dev, queue); + netdev_tx_completed_queue(txq, 1, skb->len); if (netif_tx_queue_stopped(txq) && q->ndesc - q->queued >= q->free_thr) netif_tx_wake_queue(txq); @@ -2487,7 +2489,9 @@ static netdev_tx_t airoha_dev_xmit(struct sk_buff *skb, q->queued += i; skb_tx_timestamp(skb); - if (!netdev_xmit_more()) + netdev_tx_sent_queue(txq, skb->len); + + if (netif_xmit_stopped(txq) || !netdev_xmit_more()) airoha_qdma_rmw(qdma, REG_TX_CPU_IDX(qid), TX_RING_CPU_IDX_MASK, FIELD_PREP(TX_RING_CPU_IDX_MASK, q->head)); |