git.openwrt.org Git - openwrt/staging/thess.git/blob

   1 From 5f795590380476f1c9b7ed0ac945c9b0269dc23a Mon Sep 17 00:00:00 2001
   2 From: Lorenzo Bianconi <lorenzo@kernel.org>
   3 Date: Fri, 3 Jan 2025 13:17:02 +0100
   4 Subject: [PATCH 1/4] net: airoha: Enable Tx drop capability for each Tx DMA
   5  ring
   6
   7 This is a preliminary patch in order to enable hw Qdisc offloading.
   8
   9 Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
  10 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
  11 ---
  12  drivers/net/ethernet/mediatek/airoha_eth.c | 4 ++++
  13  1 file changed, 4 insertions(+)
  14
  15 --- a/drivers/net/ethernet/mediatek/airoha_eth.c
  16 +++ b/drivers/net/ethernet/mediatek/airoha_eth.c
  17 @@ -1790,6 +1790,10 @@ static int airoha_qdma_init_tx_queue(str
  18                 WRITE_ONCE(q->desc[i].ctrl, cpu_to_le32(val));
  19         }
  20
  21 +       /* xmit ring drop default setting */
  22 +       airoha_qdma_set(qdma, REG_TX_RING_BLOCKING(qid),
  23 +                       TX_RING_IRQ_BLOCKING_TX_DROP_EN_MASK);
  24 +
  25         airoha_qdma_wr(qdma, REG_TX_RING_BASE(qid), dma_addr);
  26         airoha_qdma_rmw(qdma, REG_TX_CPU_IDX(qid), TX_RING_CPU_IDX_MASK,
  27                         FIELD_PREP(TX_RING_CPU_IDX_MASK, q->head));