target/linux/mediatek/patches-4.9/0094-net-affinity.patch

   1 Index: linux-4.9.17/drivers/net/ethernet/mediatek/mtk_eth_soc.c
   2 ===================================================================
   3 --- linux-4.9.17.orig/drivers/net/ethernet/mediatek/mtk_eth_soc.c
   4 +++ linux-4.9.17/drivers/net/ethernet/mediatek/mtk_eth_soc.c
   5 @@ -2459,15 +2459,23 @@ static int mtk_probe(struct platform_dev
   6                         goto err_deinit_hw;
   7         }
   8
   9 +       for (i = 0; i < 3; i++) {
  10 +               int cpu = i % num_online_cpus();
  11 +
  12 +               cpumask_set_cpu(cpu, &eth->affinity_mask[i]);
  13 +       }
  14 +
  15         err = devm_request_irq(eth->dev, eth->irq[1], mtk_handle_irq_tx, 0,
  16                                dev_name(eth->dev), eth);
  17         if (err)
  18                 goto err_free_dev;
  19 +       irq_set_affinity_hint(eth->irq[1], &eth->affinity_mask[1]);
  20
  21         err = devm_request_irq(eth->dev, eth->irq[2], mtk_handle_irq_rx, 0,
  22                                dev_name(eth->dev), eth);
  23         if (err)
  24                 goto err_free_dev;
  25 +       irq_set_affinity_hint(eth->irq[2], &eth->affinity_mask[2]);
  26
  27         err = mtk_mdio_init(eth);
  28         if (err)
  29 Index: linux-4.9.17/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  30 ===================================================================
  31 --- linux-4.9.17.orig/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  32 +++ linux-4.9.17/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  33 @@ -539,6 +539,7 @@ struct mtk_eth {
  34         struct net_device               *netdev[MTK_MAX_DEVS];
  35         struct mtk_mac                  *mac[MTK_MAX_DEVS];
  36         int                             irq[3];
  37 +       cpumask_t                       affinity_mask[3];
  38         u32                             msg_enable;
  39         unsigned long                   sysclk;
  40         struct regmap                   *ethsys;