target/linux/ipq40xx/patches-6.1/704-net-qualcomm-ipqess-enable-threaded-NAPI-by-default.patch

   1 From 9fa4a57a65e270e4d579cace4de5c438f46c7d12 Mon Sep 17 00:00:00 2001
   2 From: Robert Marko <robimarko@gmail.com>
   3 Date: Tue, 15 Aug 2023 14:38:44 +0200
   4 Subject: [PATCH] net: qualcomm: ipqess: enable threaded NAPI by default
   5
   6 Threaded NAPI provides a nice performance boost, so lets enable it by
   7 default.
   8
   9 We do however need to move the __napi_schedule() after HW IRQ has been
  10 cleared in order to avoid concurency issues.
  11
  12 Signed-off-by: Robert Marko <robimarko@gmail.com>
  13 ---
  14  drivers/net/ethernet/qualcomm/ipqess/ipqess.c | 6 ++++--
  15  1 file changed, 4 insertions(+), 2 deletions(-)
  16
  17 --- a/drivers/net/ethernet/qualcomm/ipqess/ipqess.c
  18 +++ b/drivers/net/ethernet/qualcomm/ipqess/ipqess.c
  19 @@ -530,9 +530,9 @@ static irqreturn_t ipqess_interrupt_tx(i
  20         struct ipqess_tx_ring *tx_ring = (struct ipqess_tx_ring *)priv;
  21
  22         if (likely(napi_schedule_prep(&tx_ring->napi_tx))) {
  23 -               __napi_schedule(&tx_ring->napi_tx);
  24                 ipqess_w32(tx_ring->ess, IPQESS_REG_TX_INT_MASK_Q(tx_ring->idx),
  25                            0x0);
  26 +               __napi_schedule(&tx_ring->napi_tx);
  27         }
  28
  29         return IRQ_HANDLED;
  30 @@ -543,9 +543,9 @@ static irqreturn_t ipqess_interrupt_rx(i
  31         struct ipqess_rx_ring *rx_ring = (struct ipqess_rx_ring *)priv;
  32
  33         if (likely(napi_schedule_prep(&rx_ring->napi_rx))) {
  34 -               __napi_schedule(&rx_ring->napi_rx);
  35                 ipqess_w32(rx_ring->ess, IPQESS_REG_RX_INT_MASK_Q(rx_ring->idx),
  36                            0x0);
  37 +               __napi_schedule(&rx_ring->napi_rx);
  38         }
  39
  40         return IRQ_HANDLED;
  41 @@ -1261,6 +1261,8 @@ static int ipqess_axi_probe(struct platf
  42         if (err)
  43                 goto err_notifier_unregister;
  44
  45 +       dev_set_threaded(netdev, true);
  46 +
  47         return 0;
  48
  49  err_notifier_unregister: