package/kernel/mac80211/patches/rt2x00/004-rt2x00-do-not-check-for-txstatus-timeout-every-time-.patch

   1 From 5022efb50f625d11fdf18b1fee0f64ebb1863664 Mon Sep 17 00:00:00 2001
   2 From: Stanislaw Gruszka <sgruszka@redhat.com>
   3 Date: Wed, 26 Sep 2018 12:24:55 +0200
   4 Subject: [PATCH 04/28] rt2x00: do not check for txstatus timeout every time on
   5  tasklet
   6
   7 Do not check for tx status timeout everytime we perform txstatus tasklet.
   8 Perform check once per half a second.
   9
  10 Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
  11 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  12 ---
  13  drivers/net/wireless/ralink/rt2x00/rt2800lib.c   | 7 +++++++
  14  drivers/net/wireless/ralink/rt2x00/rt2800mmio.c  | 3 ++-
  15  drivers/net/wireless/ralink/rt2x00/rt2x00.h      | 2 ++
  16  drivers/net/wireless/ralink/rt2x00/rt2x00queue.c | 1 +
  17  4 files changed, 12 insertions(+), 1 deletion(-)
  18
  19 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  20 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
  21 @@ -1158,11 +1158,18 @@ bool rt2800_txstatus_timeout(struct rt2x
  22         struct data_queue *queue;
  23         struct queue_entry *entry;
  24
  25 +       if (time_before(jiffies,
  26 +                       rt2x00dev->last_nostatus_check + msecs_to_jiffies(500)))
  27 +               return false;
  28 +
  29 +       rt2x00dev->last_nostatus_check = jiffies;
  30 +
  31         tx_queue_for_each(rt2x00dev, queue) {
  32                 entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
  33                 if (rt2800_entry_txstatus_timeout(entry))
  34                         return true;
  35         }
  36 +
  37         return false;
  38  }
  39  EXPORT_SYMBOL_GPL(rt2800_txstatus_timeout);
  40 --- a/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
  41 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
  42 @@ -197,7 +197,8 @@ void rt2800mmio_txstatus_tasklet(unsigne
  43
  44         rt2800_txdone(rt2x00dev);
  45
  46 -       rt2800_txdone_nostatus(rt2x00dev);
  47 +       if (rt2800_txstatus_timeout(rt2x00dev))
  48 +               rt2800_txdone_nostatus(rt2x00dev);
  49
  50         if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
  51                 rt2800mmio_enable_interrupt(rt2x00dev,
  52 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
  53 +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
  54 @@ -980,6 +980,8 @@ struct rt2x00_dev {
  55          */
  56         DECLARE_KFIFO_PTR(txstatus_fifo, u32);
  57
  58 +       unsigned long last_nostatus_check;
  59 +
  60         /*
  61          * Timer to ensure tx status reports are read (rt2800usb).
  62          */
  63 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
  64 +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
  65 @@ -1039,6 +1039,7 @@ void rt2x00queue_start_queues(struct rt2
  66          */
  67         tx_queue_for_each(rt2x00dev, queue)
  68                 rt2x00queue_start_queue(queue);
  69 +       rt2x00dev->last_nostatus_check = jiffies;
  70
  71         rt2x00queue_start_queue(rt2x00dev->rx);
  72  }