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

   1 From a1740b16c83729d908c760eaa821f27b51e58a13 Mon Sep 17 00:00:00 2001
   2 From: Lorenzo Bianconi <lorenzo@kernel.org>
   3 Date: Mon, 11 Aug 2025 17:31:40 +0200
   4 Subject: [PATCH 4/6] net: airoha: npu: Read NPU wlan interrupt lines from the
   5  DTS
   6
   7 Read all NPU wlan IRQ lines from the NPU device-tree node.
   8 NPU module fires wlan irq lines when the traffic to/from the WiFi NIC is
   9 not hw accelerated (these interrupts will be consumed by the MT76 driver
  10 in subsequent patches).
  11 This is a preliminary patch to enable wlan flowtable offload for EN7581
  12 SoC.
  13
  14 Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
  15 Link: https://patch.msgid.link/20250811-airoha-en7581-wlan-offlaod-v7-5-58823603bb4e@kernel.org
  16 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  17 ---
  18  drivers/net/ethernet/airoha/airoha_npu.c | 9 +++++++++
  19  drivers/net/ethernet/airoha/airoha_npu.h | 3 +++
  20  2 files changed, 12 insertions(+)
  21
  22 --- a/drivers/net/ethernet/airoha/airoha_npu.c
  23 +++ b/drivers/net/ethernet/airoha/airoha_npu.c
  24 @@ -696,6 +696,15 @@ static int airoha_npu_probe(struct platf
  25                 INIT_WORK(&core->wdt_work, airoha_npu_wdt_work);
  26         }
  27
  28 +       /* wlan IRQ lines */
  29 +       for (i = 0; i < ARRAY_SIZE(npu->irqs); i++) {
  30 +               irq = platform_get_irq(pdev, i + ARRAY_SIZE(npu->cores) + 1);
  31 +               if (irq < 0)
  32 +                       return irq;
  33 +
  34 +               npu->irqs[i] = irq;
  35 +       }
  36 +
  37         err = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
  38         if (err)
  39                 return err;
  40 --- a/drivers/net/ethernet/airoha/airoha_npu.h
  41 +++ b/drivers/net/ethernet/airoha/airoha_npu.h
  42 @@ -5,6 +5,7 @@
  43   */
  44
  45  #define NPU_NUM_CORES          8
  46 +#define NPU_NUM_IRQ            6
  47
  48  enum airoha_npu_wlan_set_cmd {
  49         WLAN_FUNC_SET_WAIT_PCIE_ADDR,
  50 @@ -68,6 +69,8 @@ struct airoha_npu {
  51                 struct work_struct wdt_work;
  52         } cores[NPU_NUM_CORES];
  53
  54 +       int irqs[NPU_NUM_IRQ];
  55 +
  56         struct airoha_foe_stats __iomem *stats;
  57
  58         struct {